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Utilization of HIV testing services among pregnant mothers in low income primary care settings in northern Ethiopia: a cross sectional study

BMC Pregnancy and Childbirth volume 17, Article number: 199 (2017) Cite this article

Abstract

Background

HIV testing of women in child bearing age is an entry point for preventing mother-to-child transmission of HIV (MTCT). This study aims to identify the proportion of women tested for HIV and to determine factors associated with utilization of HIV testing services among pregnant mothers in primary care settings in northern Ethiopia.

Methods

A cross sectional study was conducted in 416 pregnant women from four primary care centers between October 2, 2012 and May 31, 2013 in East Gojjam, Ethiopia.

Results

The proportion of mothers who tested for HIV was 277(67%). Among mothers who were not tested for HIV, lack of HIV risk perception (n = 68, 49%) was a major self-reported barrier for HIV testing. A multivariable logistic regression analysis showed that those pregnant women who had comprehensive knowledge about MTCT had an Adjusted Odd Ratio (AOR) of 3.73 (95% CI: 1.56, 8.94), having comprehensive knowledge on prevention of mother to child transmission (PMTCT) of HIV an AOR of 2.56 (95% CI: 1.26, 5.19), and a favorable attitude towards persons living with HIV an AOR of 2.42 (95%CI, 1.20, 4.86) were more likely to be tested for HIV.

Conclusion

One third of pregnant women had never been tested for HIV until the time of the study. Efforts should be made to improve mother’s knowledge about MTCT and PMTCT to increase uptake of HIV testing. Enhancing mother’s HIV risk perception to scale up HIV testing in resource limited setting is highly recommended.

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Background

HIV continues to pose a major problem globally. More than 90% of new global pediatric HIV infections are in sub-Saharan Africa [1]. According to the HIV/AIDS estimates of the Central Statistical Agency of Ethiopia in 2014, 3886 children in the country acquire HIV infection every year [2]. Mother to child transmission (MTCT) is a major source for pediatric HIV infection. In the absence of any preventive measures, the risk of a baby acquiring the virus from an infected mother ranges from 15 to 45%, which occurs during pregnancy, childbirth or breast feeding [3].

HIV testing of women of child bearing age is an entry point for PMTCT (prevention of mother to child transmission). It is one of the primary prevention strategies for MTCT. HIV testing is an effective intervention to increase PMTCT [4]. However a significant number of women in HIV epidemic regions have not been tested for HIV [5]. Utilization of HIV testing services in sub-Saharan Africa is low; even where such services are available, women are not receiving the full benefits [1].

Previous studies have identified socio-demographic status [6,7,8,9,10,11,12,13], knowledge of MTCT& PMTCT [14,15,16] and attitude towards HIV/AIDS [17,18,19] as factors that determine uptake of HIV testing. However, the relative contribution of these factors to HIV testing varies from study to study and from population to population. Studies conducted in Ethiopia on HIV testing of pregnant mothers were mainly on acceptance and refusal of the test offered by the counselors at PMTCT sites during antenatal care [20,21,22]. Studies that identify proportions and factors associated with actual HIV testing among pregnant mothers are scarce. This study will contribute to identifying obstacles to take up HIV taking in pregnant women in order to develop a more comprehensive & multidisciplinary approach to scale up HIV testing services in resource limited settings. We aim to identify the proportion of and factors for HIV testing among pregnant women in Ethiopia.

Methods

Study design and study settings

We conducted a cross sectional study in health institutions in Amhara region from October 2, 2012 to May 31, 2013. In Amhara regional state, there are three metropolitan cities and ten zones. East Gojjam is one of the ten zones and consists of 15 districts (werda). Sixty nine primary health care centers provide both antenatal care and PMTCT services in the 15 districts. A total 588,633 women of reproductive age (15–49 years) live in the area [23].

Sample size determination

Sample size was determined using a single population proportion estimation formula and calculated using Epi-info 7 with 50% proportion, 5% of absolute precision, 95% confidence interval and non-response rate of 10%. The calculated overall sample size was 422.

Sampling procedures

Four primary health care centers from East Gojjam Zone were randomly selected and included in the study. Primary health care centers from Motta, Gendowin, Bitchena and Debrewerk were identified. Pregnant women attending their first antenatal care visit for a current pregnancy at any of those four health institutions was recruited. We employed proportional allocation of subjects to each facility per size, systematic random sampling with sampling interval of three was used to select pregnant women from each health institution.

Data collection and analysis

Questionnaires were first prepared in English, translated to Amharic followed by back translation and pretested for consistency and ease of understanding. Data were collected from pregnant women during their first antenatal care visit. Trained nurses conducted face to face interviews with study participants by using questionnaires of Amharic language. Data were collected to assess socio-demographic variables (age, education, residence and monthly expenditure), knowledge and attitude variables (knowledge of MTCT & PMTCT and specific attitude to HIV positive living).

Data were entered into Epi info 7 and analysis was done with STATA 12. Frequencies and proportions were used to describe the study subjects in relation to the studied variables. Logistic regression model was used to examine the relation between explanatory variables and HIV testing. Bi-variable logistic regression model were fitted for all explanatory variables. Odds ratio with its 95% confidence interval and p-value were used to measure strength of association and to identify statistical significance of results. Identification of confounding variables by using logistic regression model was used. All explanatory variables that were fitted in the bi-variable model were fitted to a multivariable logistic regression model. The clustered nature of the data was taking into account in the analysis; however, multilevel logistic regression model was not fitted. The ICC (intra-class correlation coefficient) estimate was 0.038, indicating that only 3.8% of the variation is due to difference between health institutions. Most of the variations (96.2%) are explained by the lower level measures (pregnant women). As ICC was less than 5–10%, hierarchical modeling is not required.

Operational definitions

Comprehensive knowledge of MTCT: pregnant women were classified as knowledgeable if they knew about mother to child transmission of HIV and were able to list at least two means of transmission (during pregnancy, delivery or breast feeding).

Comprehensive knowledge of PMTCT: pregnant woman classified as knowledgeable if the woman knew about PMTCT and method of PMTCT (antiretroviral therapy).

Favorable attitude towards persons living with HIV: defined as a woman who perceived that her husband or/and other family member/s will care for her, if her HIV test result is positive.

Result

Socio-demographic variables and proportion of HIV testing

Out of the 422 eligible participants, 416 consented to be enrolled into the study; 178 women in Motta hospital, 73 in Debre Werke health center, 77 in Bichena health center, and 88 in Gindwyen health center were recruited. The overall response rate was 98.6% and the mean age was 28.2 years (SD = 6.15 yrs). Table 1 presents the frequency distribution of socio-demographic variables among HIV tested and non-tested subjects; 55% (n = 229) of the subjects were from rural areas. Majority of them (53.6%) did not have any formal-education. The proportion of pregnant women who tested for HIV at least once among the study group was 277(67%).

Table 1 Socio-demographic characteristics of HIV tested and not-tested pregnant women attending antenatal care in East Gojjam, northern Ethiopia, 2013
Full size table

Knowledge and attitude related to HIV testing

Table 2 shows the frequency distribution of knowledge and attitude variables among HIV tested and non-tested. From 416 mothers, 74% (tested = 76%, non-tested = 24%) of the study population had heard of mother to child transmission of HIV. Out of these, 70% (tested = 79%, non-tested = 21.0%) knew of mother to child transmission of HIV during pregnancy; 48% (tested = 86%, non-tested = 14%) knew of mother to child transmission of HIV during delivery and 70% (tested = 81% non-tested = 19%) knew of mother to child transmission of HIV during breast feeding. Similarly, among 307 mothers, 88% (tested = 82%, non-tested = 18%) heard of PMTCT. In regard to specific attitude towards HIV positive living among 416 pregnant women, 38% (tested = 85%, non-tested = 15%) perceived their husband or/and other family member/s will care for them, if their HIV test results are positive.

Table 2 Knowledge and attitude related to HIV testing among pregnant women attending antenatal care in health facilities of East Gojjam, northern Ethiopia 2013(n = 416)
Full size table

Self-reported reasons of mother’s not undertook HIV testing

Table 3 shows self-reported reasons of mothers not taking up HIV testing. The most frequent reason that pregnant women were not tested for HIV was due to the lack of HIV risk perception (49%) followed by the absence of nearby HIV testing center (26%). Other reasons included lack of perceived benefit of HIV testing (22%) and perceived lack of confidentiality in HIV testing centers (7%).

Table 3 Self-reported reasons for not-testing for HIV among pregnant women attending antenatal care in health facilities of East Gojjam, northern Ethiopia 2013
Full size table

Bi-variable analysis of factors associated with HIV testing

Table 4 presents the relation between explanatory variables and HIV testing. The bi-variable analysis shows that women with the age of 16–24 years had 9 times higher odds (crude odd ratio [COR] = 9, 95% CI: 4.65, 17.59) of being tested for HIV compared to pregnant women who were older (≥35 years). Women who had secondary education and above were (COR = 8.04, 95% CI: 4.55, 14.10) more likely to be tested for HIV compared with women who did not attend formal education. Mothers from urban areas were (COR = 6.03, 95% CI: 3.70, 9.83) more likely to be tested for HIV compared with mothers from rural areas. Mothers whose monthly expenditure was ≥30 USD (COR = 7.10, 95%CI: 3.66, 13.76) were more likely to be tested for HIV compared with mothers whose monthly expenditure was <30 USD. Nulliparous women (primigravidae) were (COR = 5.58, 95%CI: 2.97, 10.47) more likely to be tested for HIV compared with pregnant women who had five or more children.

Table 4 Factors associated with HIV testing among pregnant women attending antenatal in East Gojjam, northern Ethiopia, 2013
Full size table

Study subjects who had comprehensive knowledge of mother to child transmission of HIV were (COR = 16.03, 95% CI: 8.25, 32.53) more likely to be tested for HIV. Respondents who had comprehensive knowledge of PMTCT were (COR = 9.49, 95% CI: 5.77, 15.58) more likely to be tested for HIV. Women who had favored attitude to HIV positive living were (COR = 4.55, 95%CI, 2.76, 7.50) more likely to be tested for HIV.

Multivariable analysis of factors independently associated with HIV testing

Table 5 shows independent factors associated with HIV testing. After controlling for possible confounders using a multivariable logistic regression model, women age 16–24 years were more likely to be tested for HIV compared with older pregnant women (≥35 years) (AOR = 7.9, 95% CI: 3.19, 19.55). Women who had secondary education and above were more likely to be tested for HIV compared with women who did not have formal education (AOR = 3.49, 95% CI: 1.56, 7.77). Mothers from urban areas were more likely to be tested for HIV compared with women from rural areas (AOR = 3.42, 95% CI: 1.82, 6.46). Mothers whose monthly expenditure was ≥30 USD were more likely to be tested for HIV compared with mothers whose monthly expenditure was <30 USD (AOR = 4.06, 95%CI: 1.66, 9.93). Nulliparous women were more likely to be tested for HIV compared with pregnant women who had five or more children (AOR = 4.34, 95%CI: 1.61, 11.68).

Table 5 Factors independently associated with HIV testing among pregnant women attending antenatal in East Gojjam, northern Ethiopia, 2013
Full size table

Subjects who had comprehensive knowledge of mother to child transmission of HIV were more likely to be tested for HIV (AOR = 3.73, 95% CI: 1.56, 8.94), and so were those who had comprehensive knowledge of PMTCT (AOR = 2.56, 95% CI: 1.26, 5.19). Women who had a favorable attitude to persons living with HIV more likely to be tested for HIV (AOR = 2.42, 95%CI, 1.20, 4.86).

Discussion

In this study 67% of pregnant women were tested for HIV. It was lower than studies conducted in Vietnam (90%) and Cambodia (76%) [24, 25]. This could be due to differences of in knowledge and attitude towards HIV/ADIS, MTCT or PMTCT.

In our study women of older age were less likely to be tested for HIV. In contrast a study conducted in Cameron showed that pregnant women between the age range of 25 and 30 years were more likely to be tested for HIV compared with pregnant women age less than 20 years. On the other hand, a study conducted in Georgia showed that the age of the mother was not a determinant of opting for HIV testing [26].

Our study also showed that pregnant women who attended secondary education or above were more likely to be tested for HIV compared with pregnant women who did not attend formal education, consistent with previous studies in Nigeria and Tanzania that showed an association between higher educational level and HIV testing [7, 9]. However other studies level of education was a statistically significant factor for HIV testing [25, 26]. This could be due to variations in what is taught at schools.

The findings of this study showed that women from urban areas were more likely to be tested for HIV compared with women from rural areas and this is consistent with other studies [16, 17, 25]. This could be due to lower access of HIV testing centre in women from rural areas. Women who lived closer to the hospital were more likely to be tested for HIV [10].

A study showed that lower income was associated with a lower likelihood of pregnant women getting counseling for HIV testing [11]. Similarly our study indicated that women whose monthly expenditure was ≥30 USD were more likely to be tested for HIV compared with women whose monthly expenditure was <30 USD. HIV testing service in Ethiopia is free of charge for study participant as well as the general population. The observed association between monthly expenditure and HIV testing could be related to the capacity to afford transport and access to information such as having radio and television. Distance and transport costs were barriers to access PMTCT services [12].

HIV testing among women was negatively associated with parity. Compared to nulliparous women, parous women were more likely to refuse HIV testing after counseling [6, 13]. In this study, pregnant women who have not had any children were more likely to be tested for HIV compared with multiparous pregnant women who had five or more children.

Pregnant women attending antenatal care who had previous knowledge about prevention of mother-to-child transmission of HIV were more likely to be tested for HIV [14, 15]. In this study subjects who had comprehensive knowledge of mother to child transmission of HIV were more likely to be tested for HIV. Pregnant women with a high PMTCT knowledge score and knowing someone who receives antiretroviral therapy for PMTCT, were more likely to be tested for HIV [16]. Similarly in our findings respondents who had comprehensive knowledge of PMTCT were more likely to be tested for HIV. This could be due to higher perceived benefit of HIV testing among women who had better knowledge of MTCT and PMTCT. Studies have identified lack of HIV risk perception, perception of poor health care support, worry about husband’s disapproval, fear of knowing their HIV status, need to have their partner consent, stigma and poor perceived quality of post-test counseling for positive test result as some of the reasons women were tested for HIV [16,17,18,19]. Some of the potential gaps for HIV testing for pregnant women are lack of knowledge, stigma and discrimination. According to guidelines on the prevention of mother-to-child transmission of HIV in Ethiopia, male partner involvement, community based mother’s support, involving PLWHIV (people live with HIV) in campaigns to reduce stigma and discrimination are strategies to increase the uptake of HIV testing and PMTCT service as a whole [3]. Efforts to increase knowledge on HIV testing amongst mothers, to decrease stigma of HIV, and to increase partner support have been in place after our study was conducted. These efforts could make HIV testing better today in our study population. However, studies identified that only 20% of male partners are involved PMTCT of similar settings in northern Ethiopia [27, 28].

In this study mothers who lack of HIV risk perception were less likely to be tested for HIV. On the other hand, mothers who had a favorable attitude towards HIV positive living were more likely to be tested for HIV. Many women were not tested for HIV because of perceived low risk of HIV. Among Ethiopian women HIV prevalence in 2013 was 1.7% [2].

Limitation

Since our study was a cross sectional design, cause-effect relationship could not be established. This study was limited to health institutions and therefore it cannot be generalized to pregnant women who are not able to attend antenatal care in the health care institutions.

Conclusion

One third of pregnant women had never been tested for HIV until the time of the study. Implementing information, education and behavioral change communication on HIV positive living, MTCT and PMTCT are very useful to scale up HIV testing. Enhancing mother’s HIV risk perception in resource limited setting is highly recommended (Additional file 1).

Abbreviations

AOR:

Adjusted Odd Ratio

COR:

Crude odd ratio

ICC:

Intra-class correlation coefficient

MTCT:

Mother-to-child transmission of HIV

PMTCT:

Prevention of mother to child transmission

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Acknowledgements

The authors gratefully acknowledge hospitals, health centers, data collectors and study participants involved in the study.

Funding

The Bahir Dar University funded this article. The funder had no role in design, analysis, wrote paper, manuscript preparation or decision for publication.

Availability of data and materials

The data of this study are available without restriction. Contact to this e-mail: yihun.mulugeta@yahoo.com when needed.

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Authors and Affiliations

  1. Institute of Public Health, Heidelberg University, Heidelberg, Germany

    Yihun Mulugeta Alemu & Annelies Wilder-Smith

  2. School of Public Health, College of Medicine and Health Science, Bahir Dar University, Bahir Dar, Ethiopia

    Yihun Mulugeta Alemu & Fentie Ambaw

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Contributions

Conceived and designed the experiments: YMA FA AWS. Performed the experiments: YMA FA AWS. Analyzed the data: YMA. Contributed materials/analysis tools: YMA FA AWS. Wrote the paper: YMA FA AWS. All authors have read and approved the final version of this manuscript.

Corresponding author

Correspondence to Yihun Mulugeta Alemu.

Ethics declarations

Ethics approval and consent to participate

Ethics approval was obtained from Bahir Dar University College of Medicine and Health Science research and ethical review committee. Written permission to conduct the study was obtained from each health institution (Motta, Gindowin, Debrewerk, and Bichena) involved in the study. Informed written consents were obtained from study participants whose age was 18 years and more. This study also included participants between 16 years of age and 18 years; therefore, written assents from the teenagers and written permissions from their parents were obtained. Since there were illiterate participants and parents, the data collectors inform participants and parents about informed consents and assents. Willingness to participate in the study and parental permission was confirmed by signing (finger print for illiterates) on the informed consent sheet.

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Not applicable.

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The authors declare that they have no competing interests.

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Additional file

Additional file 1:

A copy of study questionnaire. (DOCX 24 kb)

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Alemu, Y.M., Ambaw, F. & Wilder-Smith, A. Utilization of HIV testing services among pregnant mothers in low income primary care settings in northern Ethiopia: a cross sectional study. BMC Pregnancy Childbirth 17, 199 (2017). https://doi.org/10.1186/s12884-017-1389-2

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BMC Pregnancy and Childbirth

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