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Assessment of Index Case Family Testing Among Adults Attending Art Clinic at Kule Refugee Camp, Southwest Ethiopia: 2021

Authors Wegu Y, Sileshi T, Melis T

Received 19 October 2021

Accepted for publication 30 December 2021

Published 21 January 2022 Volume 2022:14 Pages 13—21

DOI https://doi.org/10.2147/HIV.S344100

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Professor Bassel Sawaya



Yohannes Wegu,1 Tesfaye Sileshi,1 Tamirat Melis2

1Department of Public Health, College of Medicine & Health Sciences, Metu University, Metu, Ethiopia; 2Department of Public Health, College of Medicine & Health Sciences, Wolkite University, Wolkite, Ethiopia

Correspondence: Tamirat Melis Email [email protected]

Background: Human immune virus testing and counseling is the gateway to accessing anti-retro viral treatment. As a priority population group, families of index clients have been largely neglected due to a number of different factors. Testing sexual partners and children of human immunodeficiency virus (HIV) positive persons (index case finding) is a promising way of identifying HIV-positive persons unaware of their HIV status.
Objective: The aim of this study was to determine the proportion of index case family testing and its associated factors among adults attending an ART clinic at Kule Refugee Camp, southwestern Ethiopia, 2021.
Methods and Materials: An institution-based cross-sectional study was conducted at Kule Refugee Camp, Gambela region. A total of 348 adult ART clinic attendants were selected by using systematic random sampling technique. Data were collected by using a pre-tested interviewer-administered semi-structured questionnaire. The collected data were entered into Epi-Data 3.1 and exported to SPSS version 23. Bivariable and multivariable logistic regression analyses were used to identify factors associated with index case family testing. The strength of association was assessed by adjusted odds ratio, and statistical significance was declared at a p-value < 0.05 and 95% CI.
Results: The proportion of index case family testing was 49.%. Educational level: primary level (AOR=2.4, 95% CI=1.24– 4.42), secondary level and above (AOR=2.6, 95% CI=1.20– 4.70), ART adherence (AOR= 6, 95% CI= 2.8– 14.1), years on ART (AOR= 2, 95% CI= 1.10– 3.20), discussion about HIV testing (AOR=3.6, 95% CI=1.30– 10.30), disclosure status (AOR 6, 95% CI=2.21– 16.94), and being tested through voluntary counseling and testing (AOR=3.0, 95% CI1.70– 5.70) were factors significantly associated with index case family HIV testing.
Conclusion and Recommendations: This study revealed that the proportion of index case family HIV testing in Kule Refugee Camp was 49%. Educational status, adherence status, disclosure status, years on ART, and voluntary counseling and testing were determinant factors. Health professionals should advise index cases to adhere to ART drugs, to disclose their HIV status to their families, and should provide counseling based on guidelines.

Keywords: index case testing, refugee, HIV/AIDS, associated factors

Background

Human immunodeficiency virus testing and counseling is the gateway to accessing anti-retroviral treatment, which reduces rates of morbidity and mortality and motivates individuals to modify risky behaviours, as well as preventing transmission by suppression of viral load among people living with HIV (PLHIV) on ART.1 In 2014, UNAIDS introduced the 90-90-90 targets, an ambitious treatment target to help end the AIDS epidemic by 2030, so that 90% of people living with HIV should know their status, 90% of those should be on treatment, and 90% of those should have a controlled viral load by 2020.2 Index family testing is promoted because it has a high yield positivity, improves testing coverage, improves ART retention, and offers a convenient service for families affected by HIV irrespective of the background of HIV prevalence in the country.3 Nationally, in 2016, the proportion of HIV testing among index cases of males and females was 78.95 and 78.3%, respectively. However, the proportion of children tested for HIV was only 6%.3

HIV infection remains one of the world’s most serious public health and medical concerns; it is especially severe in sub-Saharan Africa. Globally, there were 37.9 million people living with HIV at the end of 2018. Of the global prevalence of HIV, sub-Saharan Africa constitutes nearly two-thirds of cases.4,5 In 2019, there were an estimated 1.5 million people newly-infected with HIV and 67.5% were in sub-Saharan Africa. Although AIDS-related deaths decreased globally by 48% between 2005 and 2017, AIDS-related deaths among adults and children totaled 690,000 and 63% of this global death was in sub-Saharan Africa.4

Based on the nature and dynamicity of the epidemic, the current testing coverage is lower relative to need.6 Vulnerable populations experience multiple challenges to accessing services, including language barriers, limited access to healthcare services, stigma, discrimination, poverty, and limited information about HIV infection and treatment.6

Although HIV testing services are key for HIV prevention, treatment, and support, globally 30% (one in five) of PLHIV are still unaware they are infected. This number varies regionally, in North America and Europe 15%, in Asia and Pacific countries 29%, in Caribbean countries 34%, in Western and North Africa 42%, and in Eastern and South Africa 26% of people living with HIV do not know their status.5,7

According to a CDC report from 2016–2018, about 1,700,998 persons were tested for HIV using contact index testing among 20 countries. From those tested, 5.8% were reported as HIV-positive, including 9.8% aged ≥15 years and 1.5% aged <15 years.6

The 2018 Ethiopian population-based HIV Impact Assessment (EPHIA) estimated an urban HIV prevalence of 3.0%. The highest was in Gambela, which was 5.7%, and the lowest was in southern nation nationalities, which was 1.8%. The prevalence of HIV among children aged 0–14 years in urban Ethiopia was 0.3% and the prevalence of HIV among partners of PLHIV was 28%.8,9

Although index case family testing is a key strategy to identify those most at risk of acquiring HIV with a high yield of positive cases, data about index case family testing is lacking for refugee settings. Therefore, the aim of this study was to assess the proportion of index case family testing and its factors associated at kule refugee camp, Gambela, Ethiopia, 2021.

Methods

Study Setting and Design

This study was conducted at Kule Refugee Camp, which is one of the seven refugee camps in Gambela Region and was established in May 2014 in response to the major refugee influx from South Sudan. It is located 50 km from Gambela town and 766 km from Addis Ababa.

According to the UNHCR 2020 report the total refugee population in Kule Camp was 45,397. Among these, 45% were male, 55% females, with 63% of the population under the age of 18 years. The camp is organized as seven zones led by zonal leaders selected by the refugees. Medicine Sans Frontiers Holland (MSF-H) provides a comprehensive medical service. HIV care service is among the prioritized medical services and has 1,355 registered ART clients under three ART clinics. According to the 2020 GC HIS report, HIV testing and counseling service performance for the camp is 11.1%. The study was conducted from March to July 2021 among ART clinic attendees in Kule Refugee Camp. A cross-sectional study design was used. The study populations were all HIV positive adult patients who were attending an ART clinic at Kule Refugee Camp that fulfill the eligibility criteria. All adult individuals who were receiving anti-retro viral therapy and whose age was greater than 15 years were included in the study, while those clients who were seriously ill or those who had mental illness were excluded from the study.

Sample Size and Sampling Procedure

The sample size was determined by using a double population formula by considering the following assumptions: 95% CI, 5% margin of error, and the value of “p” (p = proportion) were taken as prevalence of tested families of index cases among PLHIV, which was found to be 74.2%, with proportion of outcome among exposed being 96.8% and that among non-exposed being 86.8%.10

Accordingly, the calculated sample size with a 10% non-response rate for this study was 348. For each ART clinic, the 3 months ART follow-up reports were compiled from ART registers and the average of the 3 months report was computed; and the expected number of patients attending each ART clinic per month were 230 in kule-1, 296 in kule-2, and 222 in kule-3, respectively. The sample size was allocated proportionally for the three sites and selected by using systematic random sampling. Since the total sample size for this study was 348, k=748/348=2.14=2. A lottery method was used to determine every first or second case. Therefore, every first client from the first two patients who came for ART services was selected systematically as a study participant.

Operational Definition

Index cases: Individuals diagnosed HIV positive who awere already enrolled in HIV care and treatment (21).

Tested family of index case: Either partner/spouse or children <15 years of age tested for HIV.

Data Collection Tools and Procedure

The standardized data collection tool was developed through reviewing related literature (21, 32). It contains information on socio-demographic, index case health status related factors, partner related factors, and institutional related factors.

First the questionnaire was prepared in English, translated to Nuer language, and then translated back to English in order to ensure its consistency. A week before the beginning of the actual data collection, a pre-test was done on 5% of the sample size in punido-two refugee camp. Feedback from both participants of the pre-test and data collectors was incorporated to enrich the questionnaire. The data were collected by three case managers and supervised by one health officer who was trained on HIV/AIDS comprehensive management and care. Training was given for data collectors and supervisors for how to manage the data collection process. All of the data collectors had completed grade ten and above. The data were collected by face-to-face interview and reviewing patient follow-up charts by using an interviewer-administered semi-structured questionnaire. Proper information was given for each participant on the purpose and usefulness of the study and, after getting verbal consent, interviewing respondents were cascaded based on the questionnaire.

Data Processing and Analysis

Data were entered into Epidata version 3.1 and then exported to SPSS version 23 for further analysis. Descriptive analyses like percentage, frequency, and mean were calculated. Bivariate and Multivariable logistic regression analyses were used to identify the presence of associations between dependent and independent variables. Bivariate analysis variables with p≤0.25 were entered into multivariable logistic regression analysis. The Hosmer-Lemeshow test was used to check the appropriateness of the model for analysis. The possible effects of confounders were controlled through multivariable logistic regression analysis. The association between the explanatory and dependent variables was assessed at the p-value of 0.05. The variables that show a p-value <0.05 were declared as statistically significant variables in multivariable logistic regression analysis. The degree of association between independent and dependent variables was assessed using crude odd ratio (COR) and adjusted odds ratio (AOR) for bivariate and multivariable logistic regression, respectively, with a 95% confidence interval.

Results

Socio-Demographic & Health status of study participants Out of 348 study participants, 339 (97.4%) participated in this study. The mean age of the study participants was 43 years (SD=±11.2), with a minimum age of 21 years and a maximum age of 70 years. Among the respondents, 214 (63.1%) were female and 268 (79.1%) were protestant religion followers. Two-thirds of the study participants (283; 83.5%) were married. With regard to their educational status, 181 (53.4%) were unable to read. The majority of the participants (218, 64.3%) were tested before 1 year, 206 (60.8%) stayed on ART for greater than 1 year, and 120 (35.4%) were on clinical stage III. In total, 185 (54.6%) had good ART adherence (Table 1).

Table 1 Socio-Demographic Characteristics and Health Status of Index HIV Cases Attending ART Clinics at Kule Refugee Camp, Southwestern Ethiopia 2021 (n=339)

Family-Related Characteristics

One hundred and sixty one (56.9%) respondents were living with their current partner for 5 or more years. Two hundred and thirteen of the study participants (62.8%) had not discussed HTC with family members and 158 (46.6%) of the participants had disclosed their HIV status to their family members (Table 2).

Table 2 Family-Related Characteristics of Index Case Family Testing Among Adults Attending ART Clinics at Kule Refugee Camp, Southwestern Ethiopia, 2021 (n=339)

Health Facility-Related Characteristics

Most of the study participants (61.9%) were first tested by provider-initiated HIV testing and counseling (PICT) and 233 (68.7%) were counseled to bring their family for HIV testing at the ART clinic where they enrolled (Table 3).

Table 3 Health Facility-Related Factors for Index Case Family HIV Testing Among Adult Index Cases Attending ART Clinic at Kule Refugee Camp, 2021 (n=339)

Proportion of HIV Tested Families of Index Clients

From the total participants, 167 (49.3%, 95% CI=43.8–55.5%) had tested their family members for HIV.

Factors Associated with Index HIV Case Family Testing

Bi-variable analysis was performed to identify candidate variables for the final model. Those variables which have a p-value below 0.25 were candidates for multivariable logistic regression analysis. The bi-variable analysis showed that age, education status, duration since the index case was tested, duration of index case on ART, WHO clinical stage, ART adherence, discussion about HTC, HIV status disclosure, method of HIV index client tested, and index case trusting to health professional to keeptheir privacy were candidate variables in the multiple logistic regression analysis.

After adjusting for possible confounding variables, a multivariable analysis showed that having an educational level of primary and above, being on ART for greater than 1 year, having good ART adherence status, having disclosed status to family members, and respondent tested through VCT were identified to be significantly associated with index case family testing.

The results of multivariable analysis revealed that respondents who attended primary level education had tested their families were 2.4-times (AOR=2.4, 95% CI=1.24–4.4) more likely than those who were not able to read and write. Also those who had attended secondary level education were 2.6-times more likely to have their family tested for HIV AIDS (AOR=2.6, 95% CI=1.32–4.72) than those who were unable to read and write. Index clients who received ART for more than 1 year were twice as likely to test their family for HIV than index clients who received ART for less than 1 year (AOR=2.0, 95%, CI=1.10–3.20).

Respondents who discussed HTC with their families were 3.6-times more likely to test for HIV within their family (AOR=3.6, 95% CI=1.30–10.30) than their counterparts. Participants who had good ART adherence were 6-times more likely to test their family for HIV compared to their counterparts (AOR=6.0, 95% CI=2.80–14.10) (Table 4).

Table 4 Bi-Variable and Multi-Variable Analysis of Factors Associated with Index HIV Case Family Testing Among Adults Attending ART Clinic at Kule Refugee Camp, 2021

Discussion

This study tried to assess the proportion of tested family members of index cases for HIV among adults currently attending ART clinics at Kule Refugee Camp in Gambela region. This study showed that 167 (49.3%, 95% CI=43.8–55.5%) families of index case were tested for HIV.

This finding is lower than a studies conducted in Felege Hiwot referral hospital Bahir Dar, Ethiopia (74.2%),10 Kenya (62%),11 Nigeria (93.2%),12 Uganda (93%),13 Cameroon (71.5%),14 Malawi, (92.6%),15 and Tanzania (96.0%).16 The possible justification of this difference might be due to sampling difference. In Uganda and Nigeria, index cases were admitted patients, so families of index cases might be cooperative to accept testing than in a study where index cases were on outpatient follow-up. Additionally, there is a difference in study area. This study was conducted in a refugee camp where HIV testing is less of a priority issue. Poor healthcare services, limited availability of skilled health workers who understand both languages, and the customs of the refugees might decrease the motivation to be tested among family members.

Multivariable analysis of this study revealed that the educational status of index HIV cases, the duration of index cases on ART, having discussions about HIV testing with family member, HIV disclosure status, ART adherence, and index cases testing approach were identified as factors significantly associated with index HIV case family testing.

In this study, respondents who attended an educational level of primary and above had a higher number of tested family members than respondents who were unable to read and write. This finding is in line with the national level EDHS-2016 study. The results showed the better-educated individuals were more likely to have comprehensive HIV knowledge. HIV testing coverage increases with rising level of education, from 14% of women with no education to 44% among women with more than secondary education. Among men, the HIV testing varies from 13% among those with no education to 39% among those with more than secondary education level.9 Continued exposure to HIV prevention information is more freely available in school systems than in the community.9 Educated individuals were found to be more knowledgeable on the benefits of family testing, had improved recognition of the importance of knowing one`s HIV status, and, in this study setting practically, refugees who had a better education level had opportunities to be employed by different organizations as an incentive worker, which might increase the decision-making role on utilization of testing their families.

On the other hand, this study revealed that the odds of the index case`s family testing was higher among respondents who had disclosed their HIV status to their family members compared to those who had not disclosed their HIV status. This finding is consistent with studies conducted in Assosa, Ethiopia,18 Uganda,19 and Zambia.20,21 The reason for this could be that disclosure of HIV positive status plays an important role for both to the infected individual and to the family at large. It adequately addresses emotional, social, and practical consequences of the disease among the families. ART services require that patients should have to disclose their HIV positive status to their treatment supporters. This inspires families to seek HIV testing and counseling, so is a key issue for the further step of telling a spouse to get tested for HIV, and creates a favorable environment by reducing stigma and encouraging trust among families. Due to this, the families of index clients will be cooperative in being tested and knowing their HIV status.

This finding showed that discussing HIV testing with family members is significantly associated with testing of family members. This is similar with studies conducted in Mekelle hospital, Ethiopia,21 Felege Hiwot Referral Hospital, Ethiopia,10 and Ndola, Zambia.15 The possible reason for this association is that discussion about testing is a pre-condition for tracing family members for testing and results in a favourable situation for the index client to bring their families for testing.

This study also revealed that participants who had good ART adherence were more likely to test at least one family member than those who had poor ART adherence. This finding is consistent with the findings from Kenya11 and Uganda.12

This might be due to adherence to treatment being critical to maintain the health status of the index client by addressing issues of disclosure, stigma, confidentiality, and deeply held belief systems. Adhering to ART might enhance frequently visiting the ART clinic as scheduled. Repeated exposure to counseling might increase the level of awareness and health status of the client. So, respondents who had good ART adherence were more likely to disclose their HIV positive status which results in the fact that it made them more likely to get their partner and children tested.22

This study also shows that respondents who stayed on ART for ≥12 months were 2-times more likely to test their partner and children compared to respondents who stayed on ART for <12 months. This finding is consistent with a study done in Cameroon, whereparents who had been on ART for more than 5 years were twice as likely to test at least one family member compared to those who had been on ART for less than 5 years.17 This might be due to the barriers to initiation on HIV treatment and retention in care. Self-perceived stigma and discrimination is higher among newly-initiated clients.15 The longer the duration of being on ART treatment, it is expected that the level of awareness of HTC will increase and disclosing status to family becomes more likely, which facilitates testing of families.

In this study setting, since refugees are mobile, those who stayed on ART follow-up for greater than a year were more likely to have addressed social challenges by organization working on that and made respondents to bring families for testing than newly ART initiated clients. Additionally, participants who tested first by VCT had an almost 3-times higher odds of testing at least one member from partner and children when compared to those who were tested by PICT. This might be due to VCT being client-initiated testing and them coming for preventive HIV acquisition through risk assessment and risk reduction, compared to those tested through PICT who visited the health institution for another disease.6 These clients had limited time for counseling, with inappropriate space to counsel and recommend testing as a standard medical practice, and they might not be aware of HIV related issues and ready for testing. Therefore, they could not be well aware of the infection and its transmission to other persons, including family members.

The Strength of the Study

This study was conducted in a less studied study population.

It is the first study of its kind in the study area.

The Limitations of the Study

The study used verbal reporting of respondents about family member tracing for HIV, which may cause interviewers bias and social desirability bias.

Abbreviations

AOR, Adjusted Odds Ratio; HIV, Human Immunodeficiency Virus; ART, Antiretroviral Therapy; AIDS, Acquired Immunodeficiency Syndrome.

Data Sharing Statement

The data sets used/or analyzed during the current study are available from all authors (Yohannes wegu, Tesfaye Sileshi and Tamirat Melis) on reasonable request.

Ethics and Consent

Ethical clearance was obtained from Metu University, College of Medicine and Health Science, Institutional Ethical Review Board. By using a support letter which was approved by the Metu University Institutional Ethical Review Board, department of public health, permission to conduct the research was obtained from Gambela region health office, Kulle Refugee Camp. Verbal informed consent was obtained from study participants and approved by the ethical committee. The study was conducted according to the Declaration of Helsinki. Respondents were informed about the purpose and procedure of the study, the importance of their participation, the right to withdraw at any time if they want privacy and confidentiality, as the information given by each respondent was kept properly and names were not recorded.

Acknowledgment

We would like to express our heartfelt appreciation to data collectors and all ART patients who were involved as study participants in this study. We are also grateful to all health professionals who supported the study process.

Author Contributions

YW, TS, and TM made substantial contributions to the conception and design, acquisition of data, or analysis and interpretation of data; took part in drafting the article or revising it critically for important intellectual content; agreed to submit to the current journal; gave final approval of the version to be published; and agree to be accountable for all aspects of the work.

Funding

There is no funding to report.

Disclosure

The authors declare that they have no competing interests.

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