Deciphering the Morphological Correlation Between Stature and External Ear: An investigative approach in the field of Forensic Science

M Shama das; Vinod C Nayak; Pratima R Bhat; Lahari U; Alana Chacko

doi:10.12688/f1000research.164138.1

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Research Article

Deciphering the Morphological Correlation Between Stature and External Ear: An investigative approach in the field of Forensic Science

[version 1; peer review: 1 approved with reservations]

M Shama das¹, Vinod C Nayak ¹, Pratima R Bhat¹, Lahari U², Alana Chacko¹

M Shama das¹, Vinod C Nayak ¹, [...] Pratima R Bhat¹, Lahari U², Alana Chacko¹

PUBLISHED 07 Jul 2025

Author details Author details

¹ Department of Forensic Medicine and Toxicology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
² Department of Community Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India

M Shama das
Roles: Conceptualization, Investigation, Methodology, Resources, Visualization, Writing – Original Draft Preparation

Vinod C Nayak
Roles: Conceptualization, Project Administration, Supervision, Validation, Writing – Review & Editing

Pratima R Bhat
Roles: Supervision, Validation, Writing – Review & Editing

Lahari U
Roles: Data Curation, Formal Analysis

Alana Chacko
Roles: Writing – Review & Editing

OPEN PEER REVIEW

REVIEWER STATUS

This article is included in the Manipal Academy of Higher Education gateway.

Abstract

Abstract: Forensic anthropology is the study of skeletal remains for the identification of individuals and anthropology deals with study of human. Many research has been conducted to estimate stature from different body parts like foot, extremities, hand, vertebrae etc. In some cases, finding all body parts and bones in whole will be difficult in the crime scene for forensic examination. In such cases it becomes necessary to use other region such as the head and facial region for the estimation of height. Determination of height is an important in forensic examination for identification of the individual. This study was done to find the correlation between the stature and the morphological variations of the external auricular region for the estimation of stature for the purpose of forensic investigation. The study was conducted on 385 male individuals, total of 4 ear parameters were measured from both the ears using the digital caliper. The data was analyzed using Jamovi version 2.4.11. The result showed that there was positive correlation between all the dimensions with stature. The linear regression was done to find the statically significant difference between the stature and the parameters and it was found that the most predicted variable in males is the left ear length(p<0.001). This study concludes that the external auricular morphometry can be as an additional tool for the estimation of stature in the forensic investigation.

Keywords

Forensic Anthropology, Personal identification, Ear morphology, Stature, Linear regression, Correlation, Estimation of stature.

Corresponding author: Vinod C Nayak

Competing interests: No competing interests were disclosed.

Grant information: The author(s) declared that no grants were involved in supporting this work.

Copyright: © 2025 das MS et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

How to cite: das MS, Nayak VC, Bhat PR et al. Deciphering the Morphological Correlation Between Stature and External Ear: An investigative approach in the field of Forensic Science [version 1; peer review: 1 approved with reservations]. F1000Research 2025, 14:659 (https://doi.org/10.12688/f1000research.164138.1) First published: 07 Jul 2025, 14:659 (https://doi.org/10.12688/f1000research.164138.1) Latest published: 03 Sep 2025, 14:659 (https://doi.org/10.12688/f1000research.164138.2)

Introduction

Personal identification basically refers to the process of determining an individual’s unique identity. A crucial component of forensic science is human identification. Knowing the victim’s identification is the first step in gathering information about them. In the living, identification relies upon the district morphological features which are distinct to each person. In the case of bones, the process becomes complicated and it demands more meticulous examination of the remains.¹

The measurement of living body proportions in order to understand physical variances is known as anthropometry.²^,³ The main aspects of identification of an individual are age, sex, and stature.⁴^–⁶ The assessment of stature from various bodily parts, including the hands, trunk, foot, extremities, and vertebrae, has been the subject of numerous research.⁷ Given the possibility that not all of these body parts would be found at the crime scene for forensic investigation, it becomes essential to utilize other body parts like the cranial and facial region for identification purpose.¹^,⁸^,⁹

Human ears are the most distinctive facial characteristics, and their structure can reveal an individual’s age and sex.¹⁰^–¹² An effective method for estimating stature is the examination of ear morphological dimensions like auricle dimension and pinna breadth and measurements of ear lobular span and ear lobule width.¹³^–¹⁵

Some research papers have shown varied ear shapes,¹⁶ varied types of helixes and tragus, classification of Darwin’s tubercles, and varied types of ear lobes. The types of ear shape are oval, triangular, rectangular, round. The helix of the ear comes in various shapes, including flat, gently curved at the edges, broadly covering the scapha, or the more common rolled form. The different lobule shapes are tongue, triangular, arched, square. The various types of earlobe attachment are classified as free, partially attached, attached¹⁷^–²⁰ ( Figures 1,2,3,4).

Figure 1. Different types of ear shapes: (a) Oval, (b) Triangular, (c) Rectangular, (d) Round.

Figure 2. Different forms of helix: (a) normally rolled, (b) wide covering scapha, (c) flat, (d) concave marginal.

Figure 3. Different types of lobule shapes: (a) Tongue, (b) Triangular, (c) Arched, (d) Square.

Figure 4. Different types of ear lobe attachment: (a) Free, (b) Partially attached, (c) Attached.

Many research papers have found that external ear proportions are uniformly varied in individuals, the external ear dimensions are considerably larger in males in addition,²¹ the ear shows a bilateral asymmetry. Few studies also show that the configuration and proportion of ear can show craniofacial reconstruction in forensic examination.²² There is a association of stature and external ear measurements, according to numerous research.

So, the goal of the study is to find the correlation between the external ear measurements and height and also to find the morphological variation between each individual.

Methods

The study was done on 385 adult male individuals,²⁹ between the age 18-50 years. The participants were students and professionals of MAHE, Manipal. Total of 8 measurements were taken from both ears, the measurements were Auricle length, Auricle breadth, Lobule length and Lobule breadth using standard caliper and stature was taken using measuring tape. Participants with deformed ear and female participants (wearing earrings) and also male participants wearing earring are excluded. The written informed consent was taken from the participants before taking the measurements.

Each participant was made to stand barefoot, and the stature was measured using the measuring tape. The participants were made to sit and then the 8 measurements were taken using the digital calliper ( Figures 5, 6).

Figure 5. Measuring the ear length and ear width using digital caliper.

Figure 6. Measuring the lobule length and lobule width using digital caliper.

The data was analysed using Jamovi version 2.4.11. The mean and standard deviation were calculated for all the parameters. Correlation between the stature were tested using spearman’s rank correlation. The linear regression was used to find the statistically significant difference between all the parameters and stature.

Result

From Table 1, the mean and standard deviation of different parameters are age (24.7 ± 6.78), stature (172 ± 6.90), left ear length (6.14 ± 0.462), left ear width (3.22 ± 0.321), left lobule length (2.16 ± 0.350), left lobule width (1.99 ± 0.334), right ear length (7.55 ± 28.6), right ear width (3.24 ± 0.305), right lobule length (2.07 ± 0.336), right lobule width (1.98 ± 0.330). Here the right ear parameters show higher mean and standard deviation then the left ear parameters, except for the left lobule length and left lobule width which is higher than right lobule length and width.

Table 1. Descriptive statistics of different parameters (n=385).

PARAMETERS	Mean ± SD
AGE	24.7 ± 6.78
STATURE	172 ± 6.90
LEFT EAR LENGTH	6.14 ± 0.462
LEFT EAR WIDTH	3.22 ± 0.321
LEFT LOBULE LENGTH	2.16 ± 0.350
LEFT LOBULE WIDTH	1.99 ± 0.334
RIGHT EAR LENGTH	7.55 ± 28.6
RIGHT EAR WIDTH	3.24 ± 0.305
RIGHT LOBULE LENGTH	2.07 ± 0.336
RIGHT LOBULE WIDTH	1.98 ± 0.330

From the Table 2, the result show that in males, the left ear length (R²= 0.0780, p<0.001), left lobule length (R²= 0.00734, p=0.093), left lobule width (R²= 0.0112, p=0.038), right ear length (R²= 0.0660, p=0.072), right ear width (R²= 0.0144, p=0.019), right lobule length (R²= 0.00886, p=0.065), right lobule width (R²= 0.0157, p=0.014) and left ear width (R²=0.00380, p=0.227), among all these parameters left ear length, right ear length shows a statistically significant difference between the stature.

Table 2. Statistical analysis of different parameters using linear regression (n=385).

PARAMETERS	R	R²	t	p-value
LEFT EAR LENGTH	0.279	0.0780	5.69	<0.001 *
LEFT EAR WIDTH	0.0617	0.00380	1.21	0.227
LEFT LOBULE LENGTH	0.0857	0.00734	1.68	0.093
LEFT LOBULE WIDTH	0.106	0.0112	2.08	0.038
RIGHT EAR LENGTH	0.257	0.0660	1.84	0.072
RIGHT EAR WIDTH	0.120	0.0144	2.36	0.019
RIGHT LOBULE LENGTH	0.0941	0.00886	1.85	0.065
RIGHT LOBULE WIDTH	0.125	0.0157	2.47	0.014

* p value <0.05- Significant.

From the Table 3, the result show that in males, the left auricle length (r= 0.279), left ear width (r= 0.109), left lobule width (r= 0.113), right auricle length (r= 0.279), right ear width (r= 0.130), right lobule width (r= 0.120) shows moderate positive correlation with the stature, while the left lobule length (r= 0.096), right lobule length (r= 0.077) shows weak positive correlation with the stature.

Table 3. Statistical analysis of different parameters using Spearman’s rank correlation (data is not normally distributed) (n=385).

PARAMETERS	Spearman’s coefficient (r)	p-value
LEFT EAR LENGTH	0.279	<0.001*
LEFT EAR WIDTH	0.109	0.033
LEFT LOBULE LENGTH	0.096	0.059
LEFT LOBULE WIDTH	0.113	0.027
RIGHT EAR LENGTH	0.279	<0.001*
RIGHT EAR WIDTH	0.130	0.010
RIGHT LOBULE LENGTH	0.077	0.130
RIGHT LOBULE WIDTH	0.120	0.019

* p value <0.05- Significant.

From the Table 4, the mean age is 23 years which is taken from the 385 individuals. Then the mean age is divided into two groups that is lesser than or equal to 23 years of age and greater than or equal to 23 years of age. The two age groups are taken for the 8 parameters. The Median [IQR] value is taken for all the 8 parameters between the two-age group to find which parameter has significant difference among the individuals based on different age. Among the age ≤23, the left ear length (6.14[5.65-6.31]), left ear width (3.31[3.19-3.39]), left lobule length (1.97[1.81-2.24]), left lobule width (2.05[1.86-2.18]), right ear length (6.06[5.55-6.17]), right ear width (3.43[3.11-3.49]), right lobule length (1.95[1.81-2.20]), right lobule width (2.16[1.80-2.27]) and among the age ≥23, the left ear length (6.21[5.92-6.40]), left ear width (3.29[3.10-3.50]), left lobule length (2.19[1.90-2.35]), left lobule width (2.15[2.02-2.32]), right ear length (6.14[5.76-6.32]), right ear width (3.29[3.15-3.45]), right lobule length (2.04[1.87-2.43]), right lobule width (2.20[2.01-2.31]).

Table 4. Result comparing all parameters between each individual with two age group using Mann-Whitney U test (non-normally distributed).

PARAMETERS	AGE	Median[IQR]	p-value
LEFT EAR LENGTH	≤23	6.14[5.65-6.31]	0.371
LEFT EAR LENGTH	≥23	6.21[5.92-6.40]	0.371
LEFT EAR WIDTH	≤23	3.31[3.19-3.39]	0.927
LEFT EAR WIDTH	≥23	3.29[3.10-3.50]	0.927
LEFT LOBULE LENGTH	≤23	1.97[1.81-2.24]	0.115
LEFT LOBULE LENGTH	≥23	2.19[1.90-2.35]	0.115
LEFT LOBULE WIDTH	≤23	2.05[1.86-2.18]	0.016
LEFT LOBULE WIDTH	≥23	2.15[2.02-2.32]	0.016
RIGHT EAR LENGTH	≤23	6.06[5.55-6.17]	0.329
RIGHT EAR LENGTH	≥23	6.14[5.76-6.32]	0.329
RIGHT EAR WIDTH	≤23	3.43[3.11-3.49]	0.623
RIGHT EAR WIDTH	≥23	3.29[3.15-3.45]	0.623
RIGHT LOBULE LENGTH	≤23	1.95[1.81-2.20]	0.120
RIGHT LOBULE LENGTH	≥23	2.04[1.87-2.43]	0.120
RIGHT LOBULE WIDTH	≤23	2.16[1.80-2.27]	0.238
RIGHT LOBULE WIDTH	≥23	2.20[2.01-2.31]	0.238

Based on the result, the right ear length and left lobule width shows significant difference among the individuals with respect to the age. The result shows that as age increases the right ear length and left lobule width will show significant difference from person to person.

Discussion

Human identification is very important in many traumatic events. The main aim of forensic anthropologist when dealing with bones is to find out the gender, height, years of living and race.²³^,²⁴ The determination of height is necessary in forensic investigation in cases like mutilated human remains, highly decomposed body. There are several benefits of using somatological dimensions of outer ear for identification purpose.¹⁹ Therefore, the goal of the research was to estimate the stature from the morphological variation of external auricle and also to evaluate the morphological differences among persons.

Abdelaleem SA et al.,²⁵ their paper found that there was a affirmitive correlation between all measurements of both ears and stature in both sexes. The study is not in agreement of our study. Archana Kumar et al.,¹³ their study revealed no significant difference for both auricle dimensions in males, which is not a part of this study. In our study, there showed a significant difference in left ear length and right ear length with stature.

The key findings of the paper are as follows:

Using the spearman’s rank corelation, the present study revealed that there is an affirmative relation between left auricular length (r=0.279, p<0.001) and right ear span (r=0.279, p<0.001) with height.

Estimation of height from the outer auricle dimensions in this paper was completed by using the linear regression analysis. The present study revealed that left ear length (R²=0.078), p-value (<0.001) was the best predictable variable to determine the stature and this concordance with Taura MG et al.,²⁶ where their findings revealed that left ear width (R²=0.086) is the best outcome and also the right auricle length (R²=0.082) and left ear length (R²=0.074).

Using Mann-Whitney U test, the right ear length and left lobule width showed significant difference between the individuals based on the age. The right ear length for age group ≤23 (6.06[5.55-6.17]), ≥23 (6.14[5.76-6.32]) and left lobule width for the age group ≤23 (2.05[1.86-2.18]), ≥23 (2.15[2.02-2.32]) showed greater difference in the Median [IQR] between the two age group, this shows that right ear length and left lobule width will show morphological variation as the age increases and not due to random causes.

This study proves the significance of external ear measurement as a unique tool used in forensic investigation for the estimation of stature from the morphological variation of ear, in cases of mutilated body found in crime scene, personal identification is important and when other body parts are not available then using the ear measurements we can estimate the stature.²⁷^,²⁸ it could also be beneficial in different fields including forensic anthropology, forensic science.

Limitations

In the study, only four parameters were taken from both ears. Manual error was present during the collection of samples. Further studies can be performed using more parameters like facial features can be included with the ear parameters. Larger population can be considered for future studies.

Ethical considerations

The ethical approval IEC No. 397/2024 was granted by “The Institutional Ethics Committee (ICE) of Kasturba Medical College and Kasturba Hospital Manipal” on 13^th August 2024. The data were kept completely undisclosed and no participant identifiers are used. The CTRI approval number is CTRI/2024/10/075400.

Consent statement

The written informed consent was taken from all the participants. No minores were included in the study.

Data availability

Underlying data

Figshare: Stature and external ear morphology. figshare. https://doi.org/10.6084/m9.figshare.28782302.v1.²⁹

Data are available under the terms of the Creative Commons Attribution 4.0 International license (CC-BY 4.0).

Extended data: the project contains the following extended data

• Informed consent sheet
• Participation information sheet

Data can be accessed: Figshare: Stature and external ear morphology_PI and IC forms, https://doi.org/10.6084/m9.figshare.28855265.v1.³⁰

Data are available under the terms of the Creative Commons Zero “No rights reserved” data waiver (CC0 Public domain dedication).

References

1. Laxman K: A study of determination of stature in Hyderabad population from external ear morphometry. Medico-Legal Update. 2019; 19(1): 164–168. Publisher Full Text
2. Kalcioglu MT, Miman MC, Toplu Y, et al.: Anthropometric growth study of normal human auricle. Int. J. Pediatr. Otorhinolaryngol. 2003 Nov 1; 67(11): 1169–1177. PubMed Abstract | Publisher Full Text
3. Cameriere R, DeAngelis D, Ferrante L: Ear identification: a pilot study. J. Forensic Sci. 2011 Jul; 56(4): 1010–1014. Publisher Full Text
4. Rastogi P, Singh D, Mishra A, et al.: Stature estimation and sex determination using anthropometric measurements of normal human ear auricle. J. Indian Acad. Forensic Med. 2020; 42(3): 189–192. Publisher Full Text
5. Acharya S, Gupta C, Palimar V, et al.: Morphology and Morphometry of Human External Ear with Its Significance in Sex Determination and Stature Estimation in South Indian Population-An Observational Study. F1000Res. 2025 Jan 22; 14: 119. PubMed Abstract | Publisher Full Text
6. Brucker MJ, Patel J, Sullivan PK: A morphometric study of the external ear: age-and sex-related differences. Plast. Reconstr. Surg. 2003 Aug 1; 112(2): 647–652. PubMed Abstract | Publisher Full Text
7. Ahmed AA: Estimation of stature using lower limb measurements in Sudanese Arabs. J. Forensic Leg. Med. 2013 Jul 1; 20(5): 483–488. PubMed Abstract | Publisher Full Text
8. Krishan K: Estimation of stature from cephalo-facial anthropometry in north Indian population. Forensic Sci. Int. 2008 Oct 25; 181(1-3): 52.e1–52.e6. Publisher Full Text
9. Shah T, Patel MN, Nath S, et al.: Estimation of stature from cephalo-facial dimensions by regression analysis in Gujarati population. J. Indian Acad. Forensic Med. 2015; 37(3): 253–257. Publisher Full Text
10. Bozkir MG, Karakaş P, Yavuz M, et al.: Morphometry of the external ear in our adult population. Aesth. Plast. Surg. 2006 Feb; 30: 81–85. PubMed Abstract | Publisher Full Text
11. Garba SH: Anthropometric study of the pinna (Auricle) among adult Nigerians resident in Maiduguri metropolis. J. Med. Sci. 2010 Aug 15; 10(6): 176–180.
12. Alexander KS, Stott DJ, Sivakumar B, et al.: A morphometric study of the human ear. J. Plast. Reconstr. Aesthet. Surg. 2011 Jan 1; 64(1): 41–47. Publisher Full Text
13. Kaumari A, DevaDas D, Patel JK, et al.: Morphometric analysis of external ear to estimate the stature and sexual dimorphism in North Indians: a cross-sectional study. J. Clin. Diagn. Res. 2022 May 1; 16: 10–14. Publisher Full Text
14. Shireen S, Karadkhelkar VP: Anthropometric measurements of human external ear. J. Evol. Med. Dent. Sci. 2015 Jul 23; 4(59): 10333–10338. Publisher Full Text
15. Purkait R, Singh P: Anthropometry of the normal human auricle: a study of adult Indian men. Aesth. Plast. Surg. 2007 Aug; 31: 372–379. PubMed Abstract | Publisher Full Text
16. Sunday OG, Nwankwo SC, Egwu AO: Stature Estimation from the Right External Ear of Undergraduate Students in South-East Nigeria. Southeast. Eur. Med. J. 2020 Nov 12; 4(2): 12–19.
17. Faakuu E, Abaidoo CS, Appiah AK, et al.: Morphological study of the external ear among the Dagaabas in the upper west region of Ghana. Sci. Afr. 2020 Jul 1; 8(8): e00408. Publisher Full Text
18. Vijay L, Palak SN: External ear: Morphological and morphometric study in North Indian males and females. Int. J. Anat. Res. 2017; 5(2): 3866–3869.
19. Krishan K, Kanchan T, Thakur S: A study of morphological variations of the human ear for its applications in personal identification. Egypt. J. Forensic Sci. 2019 Dec; 9(1): 1–1. Publisher Full Text
20. Rathee M, Kaur J, Rathee SK: Stature Estimation and Formulation of Regression Equation from Ear Anthropometry in Haryanvi Population. Indian. J. Forensic Med. Toxicol. 2021 Oct 1; 15(4): 1883–1887. Publisher Full Text
21. Deopa D, Thakkar HK, Prakash C, et al.: Anthropometric measurements of external ear of medical students in Uttarakhand Region. J. Anat. Soc. India. 2013 Jun 1; 62(1): 79–83. Publisher Full Text
22. Fakorede ST, Adekoya KO, Fasakin TP, et al.: Ear morphology and morphometry as potential forensic tools for identification of the Hausa, Igbo and Yoruba populations of Nigeria. Bull. Natl. Res. Cent. 2021 Dec; 45: 1–9. Publisher Full Text
23. Ibrahim M, Khalifa A, Hassan H, et al.: Estimation of stature from hand dimensions in North Saudi population, medicolegal view. Saudi J. Forensic Med. Sci 2018; 1(1): 19. Publisher Full Text
24. Shah RK, Kanani SD, Patel BG, et al.: Estimation of stature from head length in western Indian Gujarati adolescent population. Indian J. Clin. Anat. Physiol. 2018 Jan; 5(1): 42–46. Publisher Full Text
25. Abdelaleem SA, Fouad Abdelbaky FA: Estimation of stature in Upper Egypt population from external ear morphometry. Int. J. Forensic Sci. Pathol. 2016 Oct 7; 4(10): 276–284. Publisher Full Text
26. Taura MG, Adamu LH, Gudaji A, et al.: Height prediction from external ear morphometry; a pilot study. Int. J. Res. Heal. Sci. 2016; 4(1): 15–19.
27. Sharma N: Anthropometric measurement and cross-sectional surveying of ear pinna characteristics in Northern India. J. Exp. Clin. Anat. 2016; 15(2): 102. Publisher Full Text
28. Elrewieny NM, Mahrous MM, Mohammed HS, et al.: The possible role of human ear dimensions and nasal index in estimation of stature among an adult Egyptian population sample. Egypt. J. Forensic Sci. Appl. Toxicol. 2023 Dec 1; 23(4): 101–116. Publisher Full Text
29. Das MS: Stature and external ear morphology. Dataset. figshare. 2025. Publisher Full Text
30. Das MS: Stature and external ear morphology_PI and IC forms. Dataset. figshare. 2025. Publisher Full Text

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Version 2

VERSION 2 PUBLISHED 07 Jul 2025

Author details Author details

M Shama das
Roles: Conceptualization, Investigation, Methodology, Resources, Visualization, Writing – Original Draft Preparation

Vinod C Nayak
Roles: Conceptualization, Project Administration, Supervision, Validation, Writing – Review & Editing

Pratima R Bhat
Roles: Supervision, Validation, Writing – Review & Editing

Lahari U
Roles: Data Curation, Formal Analysis

Alana Chacko
Roles: Writing – Review & Editing

Competing interests

No competing interests were disclosed.

Grant information

The author(s) declared that no grants were involved in supporting this work.

Article Versions (2)

version 2

Revised

Published: 03 Sep 2025, 14:659

https://doi.org/10.12688/f1000research.164138.2

version 1

Published: 07 Jul 2025, 14:659

https://doi.org/10.12688/f1000research.164138.1

© 2025 das MS et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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das MS, Nayak VC, Bhat PR et al. Deciphering the Morphological Correlation Between Stature and External Ear: An investigative approach in the field of Forensic Science [version 1; peer review: 1 approved with reservations]. F1000Research 2025, 14:659 (https://doi.org/10.12688/f1000research.164138.1)

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Open Peer Review

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PUBLISHED 07 Jul 2025

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Reviewer Report 27 Aug 2025

Joshua Tetteh, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

Approved with Reservations

https://doi.org/10.5256/f1000research.180598.r403130

This article aimed to investigate the relationships between the auricle and height, as well as between the two ears. There were significant differences between some left and right ear parameters, and though there were positive correlations between the ear and height, the values are too low to be employed in forensic investigation, as claimed in the conclusion.
The work is well presented, but some sentences contain grammatical errors that require attention, especially in the introduction.
Reference number 30 in the reference list is not found in the text. The arrangement of the in-text references is also not the best (it ends at 22 for the introduction and jumps to 29 in the methods and then comes back to 23 in the discussion)

Is the work clearly and accurately presented and does it cite the current literature?

Partly
Is the study design appropriate and is the work technically sound?

Yes
Are sufficient details of methods and analysis provided to allow replication by others?

Yes
If applicable, is the statistical analysis and its interpretation appropriate?

Partly
Are all the source data underlying the results available to ensure full reproducibility?

No
Are the conclusions drawn adequately supported by the results?

Partly

Competing Interests: No competing interests were disclosed.

Reviewer Expertise: Human Anatomy and Forensic Anthropometry

I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard, however I have significant reservations, as outlined above.

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Author Response 10 Sep 2025

Shama das, Department of Forensic Medicine and Toxicology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, 576104, India

10 Sep 2025

Author Response
Dear Reviewer,

Thank you for your review and inputs. We have incorporated the changes wherever necessary and uploaded the revised version of the manuscript for your kind reference.
... Continue reading
Dear Reviewer,

Thank you for your review and inputs. We have incorporated the changes wherever necessary and uploaded the revised version of the manuscript for your kind reference.

There were significant differences between some left and right ear parameters, and though there were positive correlations between the ear and height, the values are too low to be employed in forensic investigation, as claimed in the conclusion.

Response : We agree with this comment, thank you. However, the conclusion drawn in this research endeavour is based on the significance level. The p values < 0.001 (The present study revealed that left ear length (R²=0.078), p-value (<0.001) was the best predictive variable to determine the stature) indicate a high level of statistical significance. This finding correlates with findings of a pilot study undertaken by Taura MG et al.in 2016. Hence the research team opines that this finding is of significant value and contributes to the body of knowledge in the domain of forensic sciences.

The work is well presented, but some sentences contain grammatical errors that require attention, especially in the introduction.

Response: Thank you for this observation. We have incorporated the changes wherever required.

Reference number 30 in the reference list is not found in the text. The arrangement of the in-text references is also not the best (it ends at 22 for the introduction and jumps to 29 in the methods and then comes back to 23 in the discussion)

Response: Thank you for the observation. We have realigned the references and resubmitted the manuscript for your kind perusal.

Are all the source data underlying the results available to ensure full reproducibility?

Data Sharing: The underlying data are shared and uploaded to figshare, and cited in the manuscript in the Data Availability section. Request the reviewers to kindly check this section as all underlying data are made available by the authors.

We have addressed all the issues that were mentioned by you. We request you to approve the manuscript for submission.

Regards,

Research Team
Dear Reviewer,

Thank you for your review and inputs. We have incorporated the changes wherever necessary and uploaded the revised version of the manuscript for your kind reference.

There were significant differences between some left and right ear parameters, and though there were positive correlations between the ear and height, the values are too low to be employed in forensic investigation, as claimed in the conclusion.

Response : We agree with this comment, thank you. However, the conclusion drawn in this research endeavour is based on the significance level. The p values < 0.001 (The present study revealed that left ear length (R²=0.078), p-value (<0.001) was the best predictive variable to determine the stature) indicate a high level of statistical significance. This finding correlates with findings of a pilot study undertaken by Taura MG et al.in 2016. Hence the research team opines that this finding is of significant value and contributes to the body of knowledge in the domain of forensic sciences.

The work is well presented, but some sentences contain grammatical errors that require attention, especially in the introduction.

Response: Thank you for this observation. We have incorporated the changes wherever required.

Reference number 30 in the reference list is not found in the text. The arrangement of the in-text references is also not the best (it ends at 22 for the introduction and jumps to 29 in the methods and then comes back to 23 in the discussion)

Response: Thank you for the observation. We have realigned the references and resubmitted the manuscript for your kind perusal.

Are all the source data underlying the results available to ensure full reproducibility?

Data Sharing: The underlying data are shared and uploaded to figshare, and cited in the manuscript in the Data Availability section. Request the reviewers to kindly check this section as all underlying data are made available by the authors.

We have addressed all the issues that were mentioned by you. We request you to approve the manuscript for submission.

Regards,

Research Team
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Author Response 10 Sep 2025

Shama das, Department of Forensic Medicine and Toxicology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, 576104, India

10 Sep 2025

Author Response
Dear Reviewer,

Thank you for your review and inputs. We have incorporated the changes wherever necessary and uploaded the revised version of the manuscript for your kind reference.
... Continue reading
Dear Reviewer,

Thank you for your review and inputs. We have incorporated the changes wherever necessary and uploaded the revised version of the manuscript for your kind reference.

There were significant differences between some left and right ear parameters, and though there were positive correlations between the ear and height, the values are too low to be employed in forensic investigation, as claimed in the conclusion.

Response : We agree with this comment, thank you. However, the conclusion drawn in this research endeavour is based on the significance level. The p values < 0.001 (The present study revealed that left ear length (R²=0.078), p-value (<0.001) was the best predictive variable to determine the stature) indicate a high level of statistical significance. This finding correlates with findings of a pilot study undertaken by Taura MG et al.in 2016. Hence the research team opines that this finding is of significant value and contributes to the body of knowledge in the domain of forensic sciences.

The work is well presented, but some sentences contain grammatical errors that require attention, especially in the introduction.

Response: Thank you for this observation. We have incorporated the changes wherever required.

Reference number 30 in the reference list is not found in the text. The arrangement of the in-text references is also not the best (it ends at 22 for the introduction and jumps to 29 in the methods and then comes back to 23 in the discussion)

Response: Thank you for the observation. We have realigned the references and resubmitted the manuscript for your kind perusal.

Are all the source data underlying the results available to ensure full reproducibility?

Data Sharing: The underlying data are shared and uploaded to figshare, and cited in the manuscript in the Data Availability section. Request the reviewers to kindly check this section as all underlying data are made available by the authors.

We have addressed all the issues that were mentioned by you. We request you to approve the manuscript for submission.

Regards,

Research Team
Dear Reviewer,

Thank you for your review and inputs. We have incorporated the changes wherever necessary and uploaded the revised version of the manuscript for your kind reference.

There were significant differences between some left and right ear parameters, and though there were positive correlations between the ear and height, the values are too low to be employed in forensic investigation, as claimed in the conclusion.

Response : We agree with this comment, thank you. However, the conclusion drawn in this research endeavour is based on the significance level. The p values < 0.001 (The present study revealed that left ear length (R²=0.078), p-value (<0.001) was the best predictive variable to determine the stature) indicate a high level of statistical significance. This finding correlates with findings of a pilot study undertaken by Taura MG et al.in 2016. Hence the research team opines that this finding is of significant value and contributes to the body of knowledge in the domain of forensic sciences.

The work is well presented, but some sentences contain grammatical errors that require attention, especially in the introduction.

Response: Thank you for this observation. We have incorporated the changes wherever required.

Reference number 30 in the reference list is not found in the text. The arrangement of the in-text references is also not the best (it ends at 22 for the introduction and jumps to 29 in the methods and then comes back to 23 in the discussion)

Response: Thank you for the observation. We have realigned the references and resubmitted the manuscript for your kind perusal.

Are all the source data underlying the results available to ensure full reproducibility?

Data Sharing: The underlying data are shared and uploaded to figshare, and cited in the manuscript in the Data Availability section. Request the reviewers to kindly check this section as all underlying data are made available by the authors.

We have addressed all the issues that were mentioned by you. We request you to approve the manuscript for submission.

Regards,

Research Team
Competing Interests: No competing interests were disclosed. Close
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VERSION 2 PUBLISHED 07 Jul 2025

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Version 2 (revision) 03 Sep 25
Version 1 07 Jul 25	read

Joshua Tetteh, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

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27 Aug 2025 | for Version 1

Joshua Tetteh, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

11 Views Cite this report Responses(1)

Approved With Reservations

Is the work clearly and accurately presented and does it cite the current literature?

Partly
Is the study design appropriate and is the work technically sound?

Yes
Are sufficient details of methods and analysis provided to allow replication by others?

Yes
If applicable, is the statistical analysis and its interpretation appropriate?

Partly
Are all the source data underlying the results available to ensure full reproducibility?

No
Are the conclusions drawn adequately supported by the results?

Partly

Competing Interests

No competing interests were disclosed.

Reviewer Expertise

Human Anatomy and Forensic Anthropometry

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Responses (1)

Author Response

10 Sep 2025

Shama das, Department of Forensic Medicine and Toxicology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, 576104, India

Dear Reviewer,

Thank you for your review and inputs. We have incorporated the changes wherever necessary and uploaded the revised version of the manuscript for your kind reference.

There were significant differences between some left and right ear parameters, and though there were positive correlations between the ear and height, the values are too low to be employed in forensic investigation, as claimed in the conclusion.

Response : We agree with this comment, thank you. However, the conclusion drawn in this research endeavour is based on the significance level. The p values < 0.001 (The present study revealed that left ear length (R²=0.078), p-value (<0.001) was the best predictive variable to determine the stature) indicate a high level of statistical significance. This finding correlates with findings of a pilot study undertaken by Taura MG et al.in 2016. Hence the research team opines that this finding is of significant value and contributes to the body of knowledge in the domain of forensic sciences.

The work is well presented, but some sentences contain grammatical errors that require attention, especially in the introduction.

Response: Thank you for this observation. We have incorporated the changes wherever required.

Reference number 30 in the reference list is not found in the text. The arrangement of the in-text references is also not the best (it ends at 22 for the introduction and jumps to 29 in the methods and then comes back to 23 in the discussion)

Response: Thank you for the observation. We have realigned the references and resubmitted the manuscript for your kind perusal.

Are all the source data underlying the results available to ensure full reproducibility?

Data Sharing: The underlying data are shared and uploaded to figshare, and cited in the manuscript in the Data Availability section. Request the reviewers to kindly check this section as all underlying data are made available by the authors.

We have addressed all the issues that were mentioned by you. We request you to approve the manuscript for submission.

Regards,

Research Team

View more View less

Competing Interests

No competing interests were disclosed.

Alongside their report, reviewers assign a status to the article:

Approved - the paper is scientifically sound in its current form and only minor, if any, improvements are suggested

Approved with reservations - A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit.

Not approved - fundamental flaws in the paper seriously undermine the findings and conclusions

[1] 1. Laxman K: A study of determination of stature in Hyderabad population from external ear morphometry. Medico-Legal Update. 2019; 19(1): 164–168. Publisher Full Text

[2] 2. Kalcioglu MT, Miman MC, Toplu Y, et al.: Anthropometric growth study of normal human auricle. Int. J. Pediatr. Otorhinolaryngol. 2003 Nov 1; 67(11): 1169–1177. PubMed Abstract | Publisher Full Text

[3] 3. Cameriere R, DeAngelis D, Ferrante L: Ear identification: a pilot study. J. Forensic Sci. 2011 Jul; 56(4): 1010–1014. Publisher Full Text

[4] 4. Rastogi P, Singh D, Mishra A, et al.: Stature estimation and sex determination using anthropometric measurements of normal human ear auricle. J. Indian Acad. Forensic Med. 2020; 42(3): 189–192. Publisher Full Text

[5] 5. Acharya S, Gupta C, Palimar V, et al.: Morphology and Morphometry of Human External Ear with Its Significance in Sex Determination and Stature Estimation in South Indian Population-An Observational Study. F1000Res. 2025 Jan 22; 14: 119. PubMed Abstract | Publisher Full Text

[6] 6. Brucker MJ, Patel J, Sullivan PK: A morphometric study of the external ear: age-and sex-related differences. Plast. Reconstr. Surg. 2003 Aug 1; 112(2): 647–652. PubMed Abstract | Publisher Full Text

[7] 7. Ahmed AA: Estimation of stature using lower limb measurements in Sudanese Arabs. J. Forensic Leg. Med. 2013 Jul 1; 20(5): 483–488. PubMed Abstract | Publisher Full Text

[8] 8. Krishan K: Estimation of stature from cephalo-facial anthropometry in north Indian population. Forensic Sci. Int. 2008 Oct 25; 181(1-3): 52.e1–52.e6. Publisher Full Text

[9] 9. Shah T, Patel MN, Nath S, et al.: Estimation of stature from cephalo-facial dimensions by regression analysis in Gujarati population. J. Indian Acad. Forensic Med. 2015; 37(3): 253–257. Publisher Full Text

[10] 10. Bozkir MG, Karakaş P, Yavuz M, et al.: Morphometry of the external ear in our adult population. Aesth. Plast. Surg. 2006 Feb; 30: 81–85. PubMed Abstract | Publisher Full Text

[11] 11. Garba SH: Anthropometric study of the pinna (Auricle) among adult Nigerians resident in Maiduguri metropolis. J. Med. Sci. 2010 Aug 15; 10(6): 176–180.

[12] 12. Alexander KS, Stott DJ, Sivakumar B, et al.: A morphometric study of the human ear. J. Plast. Reconstr. Aesthet. Surg. 2011 Jan 1; 64(1): 41–47. Publisher Full Text

[13] 13. Kaumari A, DevaDas D, Patel JK, et al.: Morphometric analysis of external ear to estimate the stature and sexual dimorphism in North Indians: a cross-sectional study. J. Clin. Diagn. Res. 2022 May 1; 16: 10–14. Publisher Full Text

[14] 14. Shireen S, Karadkhelkar VP: Anthropometric measurements of human external ear. J. Evol. Med. Dent. Sci. 2015 Jul 23; 4(59): 10333–10338. Publisher Full Text

[15] 15. Purkait R, Singh P: Anthropometry of the normal human auricle: a study of adult Indian men. Aesth. Plast. Surg. 2007 Aug; 31: 372–379. PubMed Abstract | Publisher Full Text

[16] 16. Sunday OG, Nwankwo SC, Egwu AO: Stature Estimation from the Right External Ear of Undergraduate Students in South-East Nigeria. Southeast. Eur. Med. J. 2020 Nov 12; 4(2): 12–19.

[17] 17. Faakuu E, Abaidoo CS, Appiah AK, et al.: Morphological study of the external ear among the Dagaabas in the upper west region of Ghana. Sci. Afr. 2020 Jul 1; 8(8): e00408. Publisher Full Text

[18] 18. Vijay L, Palak SN: External ear: Morphological and morphometric study in North Indian males and females. Int. J. Anat. Res. 2017; 5(2): 3866–3869.

[19] 19. Krishan K, Kanchan T, Thakur S: A study of morphological variations of the human ear for its applications in personal identification. Egypt. J. Forensic Sci. 2019 Dec; 9(1): 1–1. Publisher Full Text

[20] 20. Rathee M, Kaur J, Rathee SK: Stature Estimation and Formulation of Regression Equation from Ear Anthropometry in Haryanvi Population. Indian. J. Forensic Med. Toxicol. 2021 Oct 1; 15(4): 1883–1887. Publisher Full Text

[21] 21. Deopa D, Thakkar HK, Prakash C, et al.: Anthropometric measurements of external ear of medical students in Uttarakhand Region. J. Anat. Soc. India. 2013 Jun 1; 62(1): 79–83. Publisher Full Text

[22] 22. Fakorede ST, Adekoya KO, Fasakin TP, et al.: Ear morphology and morphometry as potential forensic tools for identification of the Hausa, Igbo and Yoruba populations of Nigeria. Bull. Natl. Res. Cent. 2021 Dec; 45: 1–9. Publisher Full Text

[23] 23. Ibrahim M, Khalifa A, Hassan H, et al.: Estimation of stature from hand dimensions in North Saudi population, medicolegal view. Saudi J. Forensic Med. Sci 2018; 1(1): 19. Publisher Full Text

[24] 24. Shah RK, Kanani SD, Patel BG, et al.: Estimation of stature from head length in western Indian Gujarati adolescent population. Indian J. Clin. Anat. Physiol. 2018 Jan; 5(1): 42–46. Publisher Full Text

[25] 25. Abdelaleem SA, Fouad Abdelbaky FA: Estimation of stature in Upper Egypt population from external ear morphometry. Int. J. Forensic Sci. Pathol. 2016 Oct 7; 4(10): 276–284. Publisher Full Text

[26] 26. Taura MG, Adamu LH, Gudaji A, et al.: Height prediction from external ear morphometry; a pilot study. Int. J. Res. Heal. Sci. 2016; 4(1): 15–19.

[27] 27. Sharma N: Anthropometric measurement and cross-sectional surveying of ear pinna characteristics in Northern India. J. Exp. Clin. Anat. 2016; 15(2): 102. Publisher Full Text

[28] 28. Elrewieny NM, Mahrous MM, Mohammed HS, et al.: The possible role of human ear dimensions and nasal index in estimation of stature among an adult Egyptian population sample. Egypt. J. Forensic Sci. Appl. Toxicol. 2023 Dec 1; 23(4): 101–116. Publisher Full Text

[29] 29. Das MS: Stature and external ear morphology. Dataset. figshare. 2025. Publisher Full Text

[30] 30. Das MS: Stature and external ear morphology_PI and IC forms. Dataset. figshare. 2025. Publisher Full Text

Deciphering the Morphological Correlation Between Stature and External Ear: An investigative approach in the field of Forensic Science

Abstract

Keywords

Introduction

Figure 1. Different types of ear shapes: (a) Oval, (b) Triangular, (c) Rectangular, (d) Round.

Figure 2. Different forms of helix: (a) normally rolled, (b) wide covering scapha, (c) flat, (d) concave marginal.

Figure 3. Different types of lobule shapes: (a) Tongue, (b) Triangular, (c) Arched, (d) Square.

Figure 4. Different types of ear lobe attachment: (a) Free, (b) Partially attached, (c) Attached.

Methods

Figure 5. Measuring the ear length and ear width using digital caliper.

Figure 6. Measuring the lobule length and lobule width using digital caliper.

Result

Table 1. Descriptive statistics of different parameters (n=385).

Table 2. Statistical analysis of different parameters using linear regression (n=385).

Table 3. Statistical analysis of different parameters using Spearman’s rank correlation (data is not normally distributed) (n=385).

Table 4. Result comparing all parameters between each individual with two age group using Mann-Whitney U test (non-normally distributed).

Discussion

Limitations

Ethical considerations

Consent statement

Data availability

Underlying data

References

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