Keywords
HIV self-testing; young adults; Namibia
HIV self-testing; young adults; Namibia
The introduction of Highly Active Antiretroviral Therapy (HAART) in the mid-1990s, has been applauded for its significant reduction of AIDS-related morbidity and mortality (Iloeje et al., 2005). Administration of HAART brought about a tremendous and profound reduction in the rate of immunodeficiency-related opportunistic infections (Iloeje et al., 2005). As well as, the most important stage in the initiation of an HIV positive individual into the care and treatment cascade remains a conclusive HIV diagnostic test (Omondi, Mbogo and Luboobi, 2018). The Joint United Nations Programme on HIV/AIDS (UNAIDS) targets to have reached at least 73% viral suppression in people living with HIV/AIDS (PLWH) by the end of the year 2020 which in turn will make it possible to end AIDS by the year 2030 (Celum and Barnabas, 2019). This ambitious goal is only possible if at least 90% of PLWH are diagnosed and linked to care. Previously, facility-based HIV testing has targeted volunteers, who were mostly women. However, with this strategy; a significant number of men and youth are missed, as they are not as forthcoming as women with regards to testing, and therefore, contribute disproportionately to testing gaps (Kumwenda et al., 2019; Dzinamarira et al., 2020).
Various centers in the Northern region of Namibia offer HIV testing through voluntary counseling and testing (VCT) where individuals initiate testing and the provider-initiated testing counseling (PITC), where HIV testing is offered to clients who would have visited health centers to access medical services (Jong et al., 2013). The World Health Organisation (WHO) introduced PITC as a way of increasing testing and counseling services uptake (Kennedy et al., 2013). With the setting of 90-90-90 vision 2020 by UNAIDS the government of Namibia through the Ministry of Health and Social Services (MoHSS) increased ways to scale up HIV testing services (HTS) all over the country to reach underserved populations such as young adults and men (Indravudh et al., 2019). All these strategies have seen successes in ensuring universal testing. However, despite these efforts, gaps in meeting the UNAIDS 90-90-90 have been identified by the recent Namibia population-based HIV impact assessment (NAMPHIA) which found that 86 % of PLWH in the age group 15-64 years knew their status with 79.6 % of the males and 89.5 % of females (MoHSS, 2018). In Namibia, HTS has been offered through traditional facility-based testing (MoHSS, 2011), which is considered to lack privacy, delays clients whilst waiting in line for their turn, associated with stigma, inconveniences of distance, and total costs involved (Wood, Ballenger and Stekler, 2014). There has been global progress in the promotion of HIV status awareness even though approximately 50% of PLWH do not know their status (UNAIDS, 2019). To attain the first 90 of the UNAIDS vision 2020 90-90-90 target in young adults, urgent and innovative ways of scaling up HTS are needed to improve the epidemic control as a substantive number of these young adults are unaware of their status in East and Southern Africa (UNAIDS, 2019).
There is a need for urgent action, as only approximately 10% of the young males and 15% of females, are aware of their HIV serostatus in East and Southern Africa. For this action, innovation is needed to increase HIV testing. Extending HTS out of the immovable facilities might be the solution especially in a country like Namibia where 5% of females and 11% of males are reported to have sex before the age of 15 (Gumede and Sibiya, 2018; UNAIDS, 2019). It is of paramount importance that in the process of scaling up HTS the decision for someone to get tested should not compromise their autonomy (Wurm et al., 2019). This is why it is important to acquaint young adults with HIV self-testing (HIVST).
HIV self-screening tests could help in increasing the number of individuals who have been tested and are aware of their HIV status (Dzinamarira and Mashamba-Thompson, 2019). With HIVST, the individual is accorded with convenience and privacy, as testing can be done in the comfort of one’s home residence. It further adds empowering options for care at the same time, offering means of fast-tracking, pre-screening, and triaging out those who have self-tested negative (Dzinamarira, 2019; Dzinamarira et al., 2020). HIVST will therefore help in closing the existing testing gap between women and young adults, as it can scale up HIV testing coverage and frequency. This will allow health systems to focus only on those who would require further assistance concerning counseling, HIV confirmatory testing, and initiation into the treatment and care cascade. Generally, studies have shown knowledge and acceptance of, and positive attitudes towards HIVST in key populations (Harichund and Moshabela, 2018; Tun et al., 2018; Dzinamarira, Pierre and Rujeni, 2019; Hatzold et al., 2019).
Behaviour change is difficult and complex as it is based on a comprehensive understanding of the factors that influence the uptake and implementation of specific health behaviours. The theoretical domains framework incorporates a range of factors that influence the extent to which a behaviour change can be enacted, such as knowledge, social influences, and emotions among others (Cane, O’Connor and Michie, 2012). This study is based upon the theoretical domains framework as the ability and urge to self-test is dependent on the knowledge, attitudes, and perceptions of an individual. In November 2018, the MoHSS started allowing and urging the citizens of Namibia to make use of HIVST. However, not everyone is versed with this new strategy so there is a need to explore awareness and acceptance through studying how knowledgeable young adults are about this topic, and what their perceptions of and attitudes towards HIVST are. This will help in identifying gaps in scaling up HIVST among potential young adult self-testers in Namibia.
The study was conducted at Elite Tutorial College in Ondangwa. Elite Tutorial College is a tertiary institution located in Ondangwa town in the Oshana region, which is in the Northern part of Namibia located 60km from the Angola border.
To calculate the sample size, Cochran’s formula was used.
Where:
n is the sample size.
Z is the z-value at the 95% level of significance (1.96).
p is the (estimated) proportion of the population with the attribute in question. In this case the attribute was knowledge of HIVST which according to Dzinamarira et al. 2019 is 21%. The proportion of knowledge was used in this case as knowledge precedes acceptability and perceptions.
q is 1-p
e is the desired level of precision; i.e., the margin of error which was set at 0.05 in this study.
Using Cochran’s formula, a sample size of 255 was calculated. However, the total number of students at Elite college is 1000, and this sample size is more than 5% of the population hence a finite population correction had to be factored in to calculate the final sample size. Therefore, a modification to Cochran’s sample size for small populations was used to calculate the new sample size. The following formula was used:
Where:
n1 is the new adjusted sample size.
n0 is the initial calculated sample size (255 calculated above).
N is the size of the population.
After adjusting for the population size, a new sample size of 203 was calculated. However, due to the covid restrictions prevailing at the time the study was conducted the researchers conveniently restricted the sample size to 106 after considering school attendance patterns. Only 96 students finally took part in the study. This still represents more than 5% of the target population hence the results of this study have enough power to infer to the sample population.
The study used a self-administered structured questionnaire adapted from (Gumede and Sibiya, 2018; Dzinamarira et al., 2020). The questionnaire comprised of 65 questions and used the language of instruction in the College, which is English. The study was approved by the Stellenbosch University Research Ethics Committee (REC): Social, Behavioural and Education Research (SBER) under protocol number HIV-2020-18539. Written informed consent for participation and for publication of the participants’ details was obtained from all participants.
For this survey, we included four main sections to assess their socio-demographic characteristics, their sexual health, and their health-seeking behaviour, knowledge about HIVST, attitudes, and perceptions towards HIVST and HIV positive status disclosure. We validated the questionnaire through a pilot study at Credential College with a sample of 10 students. The comments from the respondents in the pilot project were used to amend some of the questions in the questionnaire.
The awareness of and perceived acceptability of HIVST among young adults was assessed in this study.
Awareness of HIVST
“Do you know what HIVST is?” was used to assess the awareness of participants to HIVST; a binary response was captured as either a yes, which was categorised as (Aware), or no, which was categorised as (Unaware)
Acceptability of HIVST
“I would prefer to do an HIV self-test and read the results myself” was used to assess the acceptability of HIVST. The responses for strongly agree and agree were categorized as (Accept) and for neutral, disagree, and strongly disagree were characterized as (Do not accept) to allow for further analysis.
The researcher collected the questionnaires at the end of each day. Completed questionnaires were stored in a locked file cabinet and only the researcher had access. The data collation and extrapolation from questionnaires was done using Microsoft Excel spreadsheets. Categorical data was checked, for out-of-range and missing values by employing the use of cross-tabulations and frequency tables. Normality tests for continuous data were done using the Shapiro-Wilk test. Frequencies and percentages were used to report categorical variables. Means and standard deviations were used to report normally distributed continuous variables. Median and interquartile ranges were used to report variables that are not normally distributed. A one-sample t-test was used to analyse the average score of results from the Likert scale. A cut-off p-value of 0.05 was used to determine if variables were statistically significant. Univariate logistic regression analysis was carried out to obtain a preliminary insight into the unconditional association of each independent variable and dependent variable. Multivariate logistic regression analysis was employed to assess the net effect of each independent variable on the dependent variable controlling for all other confounding variables. A higher cut-off p-value of 0.25 was used for inclusion in the multivariate model so as not to miss out on vital variables. However, significance in the final model was set at p ≤ 0.05. The overall fitness of the model to the data was tested using the Hosmer and Lemeshow goodness of fit tests and Odds ratios at 95% CI were employed to estimate the effects. Analysis was done using STATA software version 13.1 (Stata, RRID:SCR_012763). A similar analysis was also done using R version 4.1.1 (R Core Team 2021) with no differences in the outputs from the two software. Thus, R can be used as an alternative to STATA and vice versa.
A total of 97 participants took part in this survey with a mean (SD) age of 20.8 (±1.85) years. The majority of participants were females (67 [69.1%]). The majority of respondents identified themselves sexually as heterosexuals (79 [81.44%]). The major source of income amongst respondents was parents (71.13%). Table 1 presents more information on the demographic details of participants.
The mean age for the first sexual encounter is 17.21 (±2.11) years. This is similar to the average age found in a study done among medical students in the Kilimanjaro region in Tanzania. This Tanzanian study revealed that the average age for sexual debut was 19 (Vara et al., 2020) and the majority of respondents (73.2%) reported using a condom on the first sexual encounter which corroborates with a study by Dzinamarira and colleagues showing 75 % of the participants using a condom on their first sexual encounter (Dzinamarira et al., 2020). Consistency of condom use is confirmed by 49.5% of the respondents, while 7.2% reported that they never use condoms during sex. The majority of respondents (67.01%) confirmed having only one sexual partner. About 18% of the respondents reported having contracted an STI within the previous 12 months. Approximately 10% reported not using a condom in the last 12 months. Of the 30 men, 43% reported being circumcised. More information about health-seeking behaviour and sexual health is presented in Table 2 below.
Knowledge of HIVST was very limited in this sample of respondents with the majority of respondents (76.29%) confirming that they do not know what HIVST is all about. The same proportion of respondents reported that they had never heard about HIVST, while a slightly higher proportion (79.38%) said they had never read about HIVST. Despite this, more than 90% of the respondents confirmed that they had never used an HIVST kit, and at least more than half of them (51.04%) were aware that HIVST kits are legally allowed to be used in Namibia. Most participants were aware of the existence of HIVST kits in private pharmacies (78.35%), while only 44.33% were aware that HIV test kits were available on the internet platforms. The majority of respondents indicated that HIVST is done using blood (89.69%) with less indicating that saliva can also be used as a sample for HIVST (22.68%). Table 3 is a summary of the findings on the knowledge of HIVST by respondents.
In cross-tabulations, there is no existence of a significant difference in knowledge of HIV self-testing between males and females (p > 0.05) in all the attributes except for the need to have a retest after 3 months when the test is negative (p = 0.009), as shown in Figure 1 below. A higher proportion of females (86.57%) were more knowledgeable compared to their male counterparts in this attribute.
Overall, respondents had a positive attitude towards HIVST. About 84% of the participants agreed/strongly agreed that HIV self-testing is a good idea while 80.41% agreed/strongly agreed that they can self-test at home using the HIV self-test kit. In addition, 82.47% of the respondents confirmed that they are happy to do the self-test with their sexual partner (Strongly agree – 55.67%, Agree – 26.8%). If the test result is positive, 87.63% of the respondents agreed/strongly agreed that they would seek help from a health facility. In addition, 92.78% of the respondents agreed that it is vital to get counseling and health advice after a positive HIV test result. Table 4 summarises the attitude of respondents towards HIVST and linkage to care.
Perceptions on HIVST and disclosing HIV-positive status were largely positive. About 82% of the respondents perceived HIV self-testing as a faster strategy of ensuring that more individuals become aware of their HIV status (Strongly agree – 50.52%, Agree – 31.96%). This would enable screening of those who test positive and allow health professionals to triage them quickly to access treatment early before the disease progresses, as attested to by 71.13% of the respondents (Strongly agree – 38.14%, Agree – 32.99%). On disclosing one’s HIV status, the majority of respondents (78.35%) said HIV positive status should be a secret and this agreement was strong (Mean = 1.86, SD= 1.03, t (96) = -10.9, p = 0.00). Furthermore, 65.98% agreed that those who test positive should only disclose their status to partners and this agreement was strong (Mean=2.25, SD=1.27, t (96) = -5.8, p = 0.00). There was no significant agreement or disagreement with respect to HIV positive people disclosing their status to significant others (Mean = 3.06, SD = 1.32, t (96) = 0.46, p = 0.65). A significant proportion of respondents (59.8%) disagreed with the notion that HIV positive people should talk openly about their HIV status (Mean = 3.54, SD = 1.35, t (96) = 3.99, p = 0.001). Table 5 summarises the perceptions towards HIVST and HIV positive status disclosure.
Univariate analysis (Awareness)
In the univariate analysis, a year increase in age was associated with a two percent increase in awareness of HIVST [OR = 1.02; 95%CI (0.79; 1.31)]. Individuals who never used a condom during their first sexual encounter were 5% less likely to be aware of HIVST as compared to those who used a condom on their sexual debut [OR = 0.95; 95% CI (0.33; 2.76)]. Having one sexual partner in the last 12 months was associated with a 53% increase in HIVST awareness compared to those individuals with more than one sexual partner within the same 12-month period [OR = 1.53, 95% CI (0.54; 4.37). Individuals who had never suffered from an STI within the last 12 months were 55% more likely to be aware of HIVST in comparison to those who had suffered from an STI within the same period [OR = 1.55, 95% CI (0.40; 5.97)]. Unfortunately, none of these associations was statistically significant at the 95% level of significance (p ≤ 0.05). In addition, no variables were significant for inclusion into the multivariate analysis. Univariate analysis findings with awareness as the dependent variable are presented in Table 6.
Univariate analysis (Acceptability)
An increase in age by a year was associated with a five percent increase in HIVST acceptability [OR = 1.05; 95% CI = (0.83; 1.32)], with women being 36% more likely to accept HIVST compared to men [OR = 1.36; 95% CI = (0.55; 3.37)]. Individuals residing in urban areas were two percent more likely to accept HIVST compared to those residing in rural areas [OR = 1.02; 95% CI = (0.40; 2.57)], while those residing in informal settlements were 95% more likely to accept HIVST compared to those in rural areas [OR = 1.95; 95% CI = (0.20; 18.61)]. However, at the 95 % level of significance (p≤0.05); none of these findings were statistically significant. The odds of accepting HIVST were 2.97 higher among those who had never suffered an STI in the last 12 months as compared to those who had suffered from an STI within the same period [OR = 2.97; 95% CI = (1.02; 8.66)] and this was statistically significant (p = 0.047). Results from the univariate analysis for acceptability are presented in Table 7.
Only two variables (suffered an STI in the last 12 months and gifts for sex) were eligible for inclusion into the multivariate model using a cut-off p-value of 0.25. However, in the multivariate model, none of the two was significant, thus the model was dropped.
The study’s main aim was to explore how knowledgeable young adults in Ondangwa are to HIVST, their attitudes, perceptions, and acceptability of home-based approaches to HIV testing. This study brought up vital findings; firstly, young adults lack knowledge on HIVST as only 23% revealed knowing about HIVST; secondly, this study showed a positive attitude towards HIVST as they agreed that it was a good idea. The participants showed positive perceptions about HIVST offering privacy, allowing positive people to get treatment before they get sicker but issues of regulation, suicide, and abuse by family members and employers. Demographics revealed that the study predominantly consisted of females with 69% of the participants being female and 31% being male. Of those who took part in this study, 89% spoke Oshiwambo with few representations from other ethnic groups. A recent population and housing census conducted by the Namibian Statistics Agency, found that the Oshana region is home to approximately 91% Oshiwambo speaking (NSA, 2017) which is in line with the findings of this present study.
The study found out that only 23% were aware of HIVST and had heard about it whilst 68% of the participants found it acceptable. Of importance to this study is the focus by the republic of Namibia in the 2017/2018 – 2021/2022 HIV and AIDS strategic framework. The HTS section of the AIDS strategic framework seeks to improve HTS uptake among young adolescents (MoHSS, 2017) as a vital step in meeting the 90-90-90 UNAIDS and ending HIV/AIDS by 2030. Studies have reported that HIVST offers the capacity to close the testing gap (Freeman et al., 2018; UNAIDS, 2019). In this study, the reports about condom usage during the first sexual encounter, late sex debut (sex after 18 years), knowledge of HIVST, and positive attitude towards HIVST and HIV risk perception were found to be factors associated with HIVST awareness. The present study further found that health-seeking behaviour, knowledge of HIVST, and positive attitude towards HIVST to be factors associated with acceptability of HIVST. The results from the present study corroborate previous calls to find solutions to poor sexual reproductive health-seeking behaviour by young adults and men (Ekouevi et al., 2020). Due to lack of knowledge, use was also minimal as only 9% reported having self-tested before, with 76 % reporting they knew that HIVST kits existed in private pharmacies. This corroborates with what Greacan et al. recommended in their study in 2016 that free HIVST kits be made available in medical centers and other public institutions (Greacen et al., 2016).
Approximately 60% of the participants in this study preferred to test alone and this has been evidenced as well in a study by Young and colleagues in 2014 (Young et al., 2014). The participants unanimously (87.6%) agreed that they would seek medical help with a positive HIV test result. Previous studies (Kalibala et al., 2014; van Rooyen et al., 2015; Gumede and Sibiya, 2018) agree with these results. Despite participants indicating positively that they would follow up with health professionals after a positive HIV self-test result, Peate (2015) raised concerns about the lack of linkage to care of HIVST citing that, contacting a health professional is an individual responsibility (Peate, 2015). Concerns about confidentiality in HIVST were raised by 78% of the participants agreeing on secrecy regarding the HIV positive test and 55% disagreeing to disclose a HIVST positive result to their sexual partners; this corroborates with studies by Dzinamarira and colleagues and that by Gumede and colleague (Dzinamarira et al., 2020; Gumede and Sibiya, 2018).
Despite participants agreeing to HIVST as part of the HIV/AIDS epidemic control, 67.7 % of participants fear incorrect readings and poor interpretation of the test results, which may lead to either false positives or false negatives. Furthermore, 64.9 % agreed that testing instructions could be wrongly read and interpreted. These fears have also been of concern in past studies (Ng et al., 2012; Choko et al., 2015; Martínez Pérez et al., 2016; Sarkar et al., 2016; Gumede and Sibiya, 2018). Regulation of HIVST kits sale has not yet been enacted in Namibia both online and in pharmacies and in this study, 56.6 percent agreed that if not regulated by the government, chances of illegal HIVST kits flooding the streets are high. This drawback has been of concern in past studies (Koutentakis et al., 2016; Williams et al., 2017; Gumede and Sibiya, 2018). The findings of this study revealed low awareness of HIVST at 23 percent and high acceptability of 68 percent among young adults attending Elite tutorial college in Ondangwa. Previous studies done in different subpopulations revealed similar patterns; for example, a study in Kigali Rwanda among men by Dzinamarira and colleagues revealed an awareness of 21 % and acceptability as high as 74 % (Dzinamarira, 2020); whilst another study among bisexual men in Australia revealed that 41.9 % were aware of HIVST (Dean et al., 2019). A South African study done in the district of eThekwini in KwaZulu Natal showed higher levels of awareness at 69.9 % (Gumede and Sibiya, 2018). The similarity of the study in eThekwini to this present study is that they both had an almost similar representation of (males 30.1 % females 68.8), and (males, 30.9 % females 67.7 %) respectively. Other studies that were done in Peru and Brazil also revealed awareness at high levels of 97 % among men (Volk et al., 2016). In addition, the low levels of awareness may be due to HIVST being a new intervention that many people are not aware of and it is still in its inception stages.
The findings of this study found HIVST acceptability at 68.8%. Acceptability slightly lower than this of 56.2% was found among Australian MSM (men who have sex with men) and bisexual men (Dean et al., 2019). In a study among Chinese MSM 43.8 % found HIVST to be acceptable (Wong et al, 2015). Attributes to variations in acceptability also vary according to differences in the sampled populations. In both Dean et al. and Wong et al., the sampled populations were MSM (Dean et al., 2019; Wong et al, 2015). A study among 3662 South African students showed acceptability of 75% with around 43.4% of the sample being males (Mpata Mokgatle and Madiba, 2017). High acceptability of this magnitude was also found out in a Kenyan study (Kalibala et al., 2014). Results of this survey corroborate findings from a systematic review carried out by Krause and colleagues in 2013 (Krause et al., 2013). The findings from this study are also in tandem with findings from literature reviews by Figueroa and colleagues (Figueroa et al., 2018) and Pant Pai and colleagues (Pant Pai et al., 2013). Acceptability of HIVST in SSA has been found out to range from 22% to 94% with a biased pattern where men benefit more than women from HIVST interventions (Kurth et al., 2016; Maheswaran et al., 2016). In comparison, studies that have men only reported high acceptability rates of around 70 to 94% whilst those that include women as the present study ferry around 22 to 64% (Dyk, 2013; Kurth et al., 2016; Gumede and Sibiya, 2018; Vara et al., 2020). The highlights of this study are that key factors such as knowledge of HIVST and health-seeking behaviour influence the acceptability of HIVST. This is similar to findings from another study by Izizag and colleagues (Izizag et al., 2018).
The Namibian government should implement a programme that increases awareness of HIVST in universities and colleges as well as in secondary schools. We recommend designing innovative policies that ensure HIVST is offered in a more youth appealing, user-friendly, and readily available to those who never took HTS for whatever reasons (Wong et al., 2014; Van Rooyen et al., 2015).
The findings from this current study revealed low levels of HIVST knowledge but the young adults in this study showed high acceptability of HIVST. These findings accentuate the importance of advancing awareness programmes for HIVST as an alternative strategy of scaling uptake of HTS among young adults in Namibia.
The data that support the findings of this study cannot be made openly available due to security risks. The data will be made available to researchers upon reasonable request by emailing the corresponding author.
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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?
Partly
Are sufficient details of methods and analysis provided to allow replication by others?
Yes
If applicable, is the statistical analysis and its interpretation appropriate?
I cannot comment. A qualified statistician is required.
Are all the source data underlying the results available to ensure full reproducibility?
No
Are the conclusions drawn adequately supported by the results?
Partly
References
1. van Empel E, De Vlieg R, Harling G, Marcus M, et al.: Reaching for the ‘first 95’: a cross-country analysis of HIV self-testing in nine countries in sub-Saharan Africa. AIDS. 2022; 36 (2): 297-304 Publisher Full TextCompeting Interests: No competing interests were disclosed.
Reviewer Expertise: Public health-Qualitative studies
Is the work clearly and accurately presented and does it cite the current literature?
Yes
Is the study design appropriate and is the work technically sound?
Partly
Are sufficient details of methods and analysis provided to allow replication by others?
Partly
If applicable, is the statistical analysis and its interpretation appropriate?
Partly
Are all the source data underlying the results available to ensure full reproducibility?
Yes
Are the conclusions drawn adequately supported by the results?
Partly
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: Public Health Medicine special interest in HIV, Adolescent Health, Health Equity
Alongside their report, reviewers assign a status to the article:
Invited Reviewers | ||
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Version 1 06 Jan 22 |
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