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Research Article

Prevalence of anemia and its associated factors among women of reproductive age group attending Gaur Provincial Hospital: A cross-sectional study

[version 1; peer review: 1 approved with reservations, 1 not approved]
PUBLISHED 23 Nov 2022
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Abstract

Background: Anemia is a principal public health concern. Worldwide one-third of women of reproductive age are affected. A 2016 survey showed that 41% of women in Nepal had anemia with the highest prevalence in Pradesh two. A complex interaction among socio-political, biological, and ecological elements determines anemia. Assessing the factors would help in minimizing anemia and its consequences. The study aimed to determine the prevalence of anemia in the reproductive age group and the factors affecting anemia. 
 
Methods:
A hospital-based cross-sectional study was conducted among women of the reproductive age group (15–45) from 15th April to 15th June 2022 after ethical clearance was obtained from the Nepal health research council (Ref. 2737/2022). Regarding data collection, 375 women participants were selected via a simple random sampling technique. Participants underwent an interview after informed written consent followed by blood sample collection. Through a semi-structured questionnaire, the data was obtained. Then data entry and its analysis were performed via Microsoft Excel 2019 and Statistical Package for Social Sciences version 22.0. 
 
Results: The study showed that 229 (61.3%) females of the reproductive age group had anemia. Inadequate nutrition (OR 3.0, 1.9–5.0), breastfeeding (OR 7.3, 4.5–11.9), and rural place of residence (OR 4.2, 2.5–7.0) were significantly associated with anemia, with a corresponding odds ratio at 95% confidence each. 
 
Conclusions: The prevalence of anemia was higher among women of the reproductive age group compared to provincial and national prevalence. The interventions should be focused on breastfeeding, nutrition, and rural women to combat anemia.

Keywords

anemia, breastfeeding, economic, prevalence, nutrition, regression, reproductive age, survey

Introduction

Anemia is a clinical condition with low hemoglobin levels in the blood, and hence, the oxygen-carrying capacity is compromised. With decreased iron levels being the most common in the developing world, iron deficiency anemia and anemia denote the same thing in this part of the world.1 A wide variety of factors are responsible in developing countries and hence dealing with this issue is a public health summons around the world.2 As per WHO and World Bank, the third paramount basis for disability-adjusted life years (DALY) loss among women of reproductive age accounts to iron deficiency anemia.2 Owing to excess loss of blood during menstrual flow as well as the fetus extracting more iron from the maternal pool, these females are most vulnerable to suffering.3 Further, in the developing world, the challenges in tackling the problems associated with iron deficiency anemia include and are not limited to a greater burden of the problem, more reliance on plant-based diets, concerns regarding cost and accessibility to iron-rich foods, and absence of extra supplementation or food fortification.2 Unable to address this issue, anemia can lead to multiple complications like dementia, fatigue, and impaired quality of life, along with adverse events during pregnancy including decreased productivity and physical abilities and even maternal deaths.4

Anemia is a serious global public health obstacle. It is estimated that one in three women of the reproductive age group (WRA) are anemic worldwide. It is associated with a greater risk in terms of maternal as well as perinatal morbidity and mortality and thus a greater economic burden to society. A survey demonstrates 41% anemia prevalence among WRA in Nepal, and province two has the highest anemia prevalence at 58%. A complex interaction among socio-political, biological, and ecological elements ultimately regulates anemia and its prevalence among women that incorporates rural places of residency, younger age, inadequate nutrition, pregnancy, repeated childbearing, breastfeeding, and lack of hormonal contraceptives.5

The prevalence of anemia among the WRA group in our belt is significantly under-reported. Adequate reporting helps understand the true burden of anemia. It will help implement policies more effectively. The study also aimed to estimate anemia prevalence among the WRA group and to know the effects of associated factors among them.

Methods

Ethical consideration

The ethical approval was obtained from Nepal Health Research Council (Reference no. 2737/2022) on 31st March 2022 after submitting the approval letter from the hospital. Informed verbal and written consent was taken before the study and confidentiality was maintained. In the case of a minor, we received assent from them as well.

Study design and setting

This was a hospital-based cross-sectional study that was conducted in the Rautahat district of Nepal served by Gaur provincial hospital. The study was done with a target population (women of reproductive age 15–45 age group) of 375, attending regular out-patient department (OPD) visits at Gaur hospital. The hospital is located at the district headquarters of Rautahat, Nepal, in southern bordering India. It is a primary referral center for all health posts, primary health care (PHC), and local clinics located in the Rautahat district. The Ministry of Health and Population of Nepal has categorized it as a 75 bedded hospital with more than 80% occupancy. Now it is run under the government of province no 2.

The study followed the Strengthening the Reporting Observational Studies in Epidemiology (STROBE) guidelines.27

Participants, sample size, and sampling methods

All women of the reproductive age group (15–45) visiting OPD at Gaur Hospital during the period of 15th April to 15th June 2022, were included in the study. The women who were seriously ill at the time of study and those taking iron supplements were, however, excluded from the study.

According to the study by Sunuwar et al., the prevalence of anemia was 58% among WRA of Madhesh province.5 Considering the anemia prevalence of 58 % at a 95% confidence interval with a 5% allowable error, the calculated sample size was 375. The detailed elaboration is as follows:

n=z2×pxqE2=1.962×0.58×0.420.052=374.3375
where,

n = required sample size

z = 1.96 at alpha 5% level of significance

p = prevalence = 0.58; q (compliment of prevalence) = 0.42

E = allowable error, 5%

Then women for this study were chosen through simple random sampling. A thorough physical examination was performed. Data regarding residency, pregnancy status, nutritional status, parity, breastfeeding status, nutrition, contraception, and income were collected through a semi-structured questionnaire. The questionnaires were developed after a full review of literature about anemia and the factor affecting it in women. Hemoglobin level was recorded from individual laboratory test reports.

Each day, after proper consent and introduction, participants were asked about their name, age, address, marital status, religion, and nutritional status (adequate ≥ 1600 Kcal/day and inadequate < 1600 Kcal/day in single-day dietary recall of the preceding day), breastfeeding (not within 3 months of postpartum and ongoing breastfeeding for past 4 weeks was categorized as “yes” group), parity, contraception, residence (urban and rural), income per month per family (low < 20,000 NRs (Nepali Rupees), medium 20,000–40,000 NRs and high > 40,000 NRs) and hemoglobin level. A hemoglobin level of fewer than 12 g/dl was considered anemia, which was further graded into mild anemia (10–11.9 g/dl), moderate anemia (7–9.9 g/dl), and severe anemia (<7 g/dl) as per the recommendations of the World Health Organization.1

After the interview, the individual participant was sent to the laboratory department. Approximately 1 ml of venous blood from each participant was taken from the arm via a sterile hypodermic syringe in a specific sterile EDTA tube. Samples were processed into an automated analyzer. The analyzer display showed the hemoglobin level, and the results were noted down.

Statistical analysis

The data was entered in to an Excel sheet (Microsoft Excel v16.0, WA, USA) and was analyzed using Statistical Packages for Social Sciences (SPSS), IBM SPSS® v21 (IBM, Armonk, New York).8 Frequency, percentage, mean, standard deviations, and/or interquartile range were used to express descriptive statistics as applicable. We described the categorical data in terms of frequency and proportions and continuous data in terms of mean ± standard deviation (SD) and interquartile range. Differences in participants’ characteristics were explored using the chi-squared test. The binary logistic regression was used to identify the association of anemia with the background characteristics of WRA. For binary logistic regression analysis, odds ratios (OR) and 95% confidence intervals (CI) were calculated.

Results

A total of 375 females of the reproductive age group participated in our study without a null response.27 Table 1 shows the mean age of participants was found to have 24.5±6.56 years. Most women belonged to the 20 to 34 age group (258 (68.8%)), followed by the less than 20 age group (78 (20.8%)). Most of the women were already married (94.9%) at the time of the interview.

Table 1. Basic characteristics of women of reproductive age group.

CharacteristicsFrequencyPercentage (%)
Age (years)
Mean ± SD (Range)24.6 ± 6.6 (15–45)
<207820.8
20–3425868.8
≥353910.4
Marital status
Married35694.9
Single1195.1
Education
Informal10327.5
Up to Primary level20755.2
Up to secondary level5514.7
Higher secondary education and/or above102.7
Nutrition satisfaction
Adequate12433.1
Inadequate25166.9
Breastfeeding
No18348.8
Yes19251.2
Parity
06717.9
117346.1
211630.9
3 and above195.1
Contraception
No16142.9
Yes21457.1
Residence
Urban28684.3
Rural8915.7
Income per month2
Low18348.8
Middle17346.1
High195.1

1 Single: divorced, separated, widowed.

2 Income per month per family: Low<20,000 NRs (Nepalese Rupees); Middle: 20,000–40,000 NRs and High >40,000 NRs.

More than half of the women (207 (55%)) completed the primary level of education, followed by 103 (27.5%) who had informal education. The nutritional assessment revealed that two-thirds of the women (251 (66.9%)) had inadequate nutrition intake. Similarly, 192 (51.2%) women were engaged in breastfeeding at the time of the interview. Many women (173 (46.1%)) had one child whereas, 116 women had two children. More than half (214 (57.1%)) of the women were contraception users. Regarding residence, out of 375, 286 (84.3%) women lived in urban areas. Regarding monthly family income, most of the families belong to the low 183 (48.8%) and middle-income 173 (46.1%) categories.

The study showed that 231 (61.6%) women of the reproductive age group had anemia with an average hemoglobin level of 11.3 ± 1.8 g/dl. Among the 231 women, 148 (64.1%) belonged to a mild type of anemia, followed by moderate and severe anemia in 34.2% (79) and 1.7%4 women respectively [Table 2].

Table 2. Anemia among women of reproductive age group.

CharacteristicsFrequencyPercentage (%)
Anemia
Mean hemoglobin ± SD (Range)11.3 ± 1.8 (5.5–16.0)
No14438.4
Yes23161.6
Anemia severity (g/dl)1
Mild (10–11.9 g/dl)14864.1
Moderate (7–9.9 g/dl)7934.2
Severe (<7 g/dl)41.7

1 Out of 231 participants.

The factors linked to anemia among females were analyzed using the binary regression model. Inadequate nutritional status was significantly associated with anemia (OR 3.0, 95% CI: 1.9-5.0). Similarly, breastfeeding women were significantly associated with anemia as compared to those currently not breastfeeding (OR 7.3, 95% CI: 4.5-11.9). Compared to urban dwellers, women living in the rural region were found to be statistically associated with anemia significantly (OR 4.2, 95% CI: 2.5-7.0) [Table 3].

Table 3. Factors affecting anemia among women of reproductive age group.

CharacteristicsAnemiaBinary logistics regression
No (%)Yes (%)OR95% CIP-value
Age (years)0.533
20–34159 (61.6)99 (38.4)1 (Ref.)
<2044 (56.4)34 (43.6)1.20.7-2.1
≥3526 (66.7)13 (33.3)0.80.4-1.6
Education0.480
Informal62 (60.2)41 (39.8)1 (Ref.)
Up to 5 class123 (59.4)84 (40.6)1.10.6-1.7
Up to 10 class & /or above44 (67.7)21 (32.3)0.70.4-1.4
Marital status0.439
Married219 (61.5)137 (38.5)1 (Ref.)
Single10 (52.6)9 (47.4)1.40.6-3.6
Nutritional satisfaction<0.001
Adequate96 (77.4)28 (22.6)1 (Ref.)
Inadequate133 (53.0)118 (47.0)3.01.9-5.0
Breastfeeding<0.001
No152 (83.1)31 (16.9)1 (Ref.)
Yes77 (40.1)115 (59.9)7.34.5-11.9
Parity0.502
045 (67.2)22 (32.8)1 (Ref.)
1102 (59.0)71 (41.0)1.40.8-2.6
2 and above82 (60.7)53 (39.3)1.30.7-2.4
Contraception0.620
No96 (59.6)65 (40.4)1 (Ref.)
Yes133 (62.1)81 (37.9)0.90.6-1.4
Residence<0.001
Urban198 (69.2)88 (30.8)1 (Ref.)
Rural31 (34.8)58 (65.2)4.22.5-7.0
Income per month0.168
Low117 (63.9)66 (36.1)1 (Ref.)
Middle104 (60.1)69 (39.9)1.20.8-1.8
High8 (42.1)11 (57.9)2.40.9-6.36

Discussion

Our study shows the overall prevalence of anemia among women under the reproductive age group was 231 (61.6%) and found it comparable to the prevalence of anemia in Province number two (58%). However, the figure is much higher if we compare it with the national data of Nepal in 2016 (41%) and the world. As per the reports of a study in East Africa, 34.85 (95% CI: 34.56–35.14) was the anemia prevalence in women of reproductive age.6 There is a complex interplay between various factors such as nutrition, infectious diseases, etc. which creates challenges and obstacles to addressing the population indicators leading to anemia.7 The study revealed that with poor nutritional status, the likelihood of having anemia was three times higher than those with good nutritional status. Likewise, the odds of anemia are two times higher if we compare data in province two of Nepal overall. This can partly be explained by the fundamental role of nutrition including micronutrients, iron in red blood cell (RBC) formation, and survival. The most frequently occurring anemia owes to iron deficiency. For a woman, iron loss from one’s body happens mostly either by the sloughing of cells from duodenal enterocytes or through blood loss following menstruation and postpartum, which results in deprivation of the iron from the circulatory pool. This iron is usually available for usage in different target organs and hence, it leads to the condition of functional iron insufficiency in the body.8 Although anemia can affect persons of any age group, the reproductive age group are more vulnerable due to busy timetables, inconsistent mealtimes, and working with longer schedules.9,10 It is a concern among the reproductive age-group females that anemia is supposed to have a massive impact on these groups of people like; loss of efficiency owing to decline in work capacity, impairment of perception and cognition, increased vulnerability towards infections due to its consequences on immunity, miscarriage or stillbirths, and maternal deaths.11 The consequences like having a preterm or low birth weight neonates, dry iron stores among new-borns, and overall increased infant/child mortality are an outcome among women suffering from anemia during their reproductive age.12 Every year, anemia leads to an excess of 115,000 maternal as well as 591,000 perinatal deaths around the globe.13 Prior studies had demonstrated that females from province number two had an increased likelihood to be arriving from a lower socioeconomic position with a lesser variety of the foods they consumed. The study demonstrates breastfeeding women are more than seven times more susceptible (OR = 7.3) to anemia as compared to non-breastfeeding. A study done in Myanmar, however, revealed there was no association between anemia with breastfeeding status.14 As the mothers are lactating, they are more likely to be anemic as their iron stores would have significantly depleted during breastfeeding in addition to the blood loss that had occurred at delivery.15 Additionally, the urban-rural residence also has a significant effect on the prevalence of this condition. In our study among women residing in rural places, they had 4.2 times more risk of having anemia. These women who live in rural sites have better access to nutrition along with health facilities. One study done in Ethiopia in 2016 demonstrates that the odds of suffering from anemia were significantly greater in women with low household wealth cohorts and those who lived in rural areas in comparison to females from the middle and higher household wealth cohorts who were from the urban area of residence (AOR = 1.37, 95% CI 1.14–1.65, P < 0.001).16 Similar studies have demonstrated that the status of anemia is greater among rural females (66%). Likewise, the odds of suffering from anemia are greater along with decreasing financial status and conditions whatever their address was, but it has been demonstrated that the odds are greater if a poor woman belongs to urban areas as compared to similar ones in rural places after covariates have been adjusted.17 According to a study conducted in Nepal, women living in rural parts of the country had 68.1% anemia as compared to only 31.9% among those women who live in urban areas.18 Although our study does not reveal an association with educational status, low educational standards do have a role in the higher prevalence of iron deficit.19 In addition, family income plays a significant role in anemia. The prevalent cases of anemia among women in their reproductive period are highest in low- and middle-income nations.20,21 Our study failed to show any association. The study reveals no correlation between hormonal contraception use and anemia. However, one study done in sub-Saharan countries elucidated that oral contraceptive pills (OCP) usage, prominently decreases the odds of having anemia by 38%.22 Similarly, another study’s result demonstrated the likelihood of anemia was decreased by around 40% as opposed to those who practiced the barrier method of contraception (OR=0.6,95% CI: 0.45 to 1.12).23 While mentioning parity, multiparous females were found to have reduced serum ferritin levels (and hence low hemoglobin) as compared to the controls, indicating that multiple pregnancies do play a role in the context of the iron content inside the body.24 Likewise, our study also had similar findings that the prevalence of anemia and iron deficiency was more among multiparous females as compared to nulliparous females.25 Women with high parity pregnancies had an increased risk of anemia than those women who had had a lesser number of pregnancies (risk ratio, RR = 2.92; 95% CI 2.02, 4.59). Also, the risk of anemia during pregnancy increased in a dose-response manner over multiple parity categories.26

To reduce the poor nutritional impact on anemia, The Ministry of Health and Population of Nepal has been delivering iron-folic acid (IFA) supplements to pregnant female cohorts and also to post-partum females since 1998 to reduce maternal anemia.

The sample was taken from the study population visiting Gaur Hospital. Therefore, its findings cannot be generalized to other hospitals/places. As this is a longitudinal study, different anemia-associated factors can’t establish causality. These were the limiting factors encountered during the study.

Conclusion

The prevalence of anemia was higher among women of the reproductive age group than in other studies done in a similar setting. Most of the women did not have knowledge and access to proper nutrition. Similarly, there should be the provision for additional nutrients and vitamins/minerals supplementation in breastfeeding women to counteract anemia. Special dietary awareness and interventions should be prioritized for multiparous women and women of rural areas to decelerate anemia and/or its possible consequences on women of reproductive potential. This fact might guide policy makers to target the above factors to decrease the prevalence of anemia and raise overall health.

Consent

Written informed consent from all the participants was taken.

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Chaurasiya PS, Gurung S, Karki S et al. Prevalence of anemia and its associated factors among women of reproductive age group attending Gaur Provincial Hospital: A cross-sectional study [version 1; peer review: 1 approved with reservations, 1 not approved]. F1000Research 2022, 11:1367 (https://doi.org/10.12688/f1000research.125103.1)
NOTE: If applicable, it is important to ensure the information in square brackets after the title is included in all citations of this article.
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ApprovedThe 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 approvedFundamental flaws in the paper seriously undermine the findings and conclusions
Version 1
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PUBLISHED 23 Nov 2022
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Reviewer Report 24 Apr 2024
Armando García-Guerra, Instituto Nacional de Salud Pública, Morelos, Mexico 
Approved with Reservations
VIEWS 2
General comment:
This article presents an estimate of the prevalence of anemia and some associated factors in women of reproductive age. Due to the high prevalence of anemia reported in the region, it is of interest to know which ... Continue reading
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HOW TO CITE THIS REPORT
García-Guerra A. Reviewer Report For: Prevalence of anemia and its associated factors among women of reproductive age group attending Gaur Provincial Hospital: A cross-sectional study [version 1; peer review: 1 approved with reservations, 1 not approved]. F1000Research 2022, 11:1367 (https://doi.org/10.5256/f1000research.137372.r240661)
NOTE: it is important to ensure the information in square brackets after the title is included in all citations of this article.
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Reviewer Report 05 Mar 2024
Hugo G Quezada-Pinedo, Erasmus MC, University Medical Center Rotterdam,, Rotterdam, The Netherlands 
Not Approved
VIEWS 2
Thank you for the opportunity to review the study: “Prevalence of anemia and its associated factors among women of reproductive age group attending Gaur Provincial Hospital: A cross-sectional stud”
The topic is a very interesting, given that anemia stands ... Continue reading
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HOW TO CITE THIS REPORT
Quezada-Pinedo HG. Reviewer Report For: Prevalence of anemia and its associated factors among women of reproductive age group attending Gaur Provincial Hospital: A cross-sectional study [version 1; peer review: 1 approved with reservations, 1 not approved]. F1000Research 2022, 11:1367 (https://doi.org/10.5256/f1000research.137372.r240664)
NOTE: it is important to ensure the information in square brackets after the title is included in all citations of this article.

Comments on this article Comments (0)

Version 1
VERSION 1 PUBLISHED 23 Nov 2022
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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
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