Individual and community-level factors associated with lifetime number of sexual partners among women aged 15-49 in Eswatini

Prevalence and factors associated with condom use among women aged 15-49 years in Rwanda using a survey logistic regression model: evidence from the 2019/20 Rwanda Demographic and Health Survey

Introduction

although Rwanda's HIV prevalence has declined, many people are still acquiring or living with it. Among other methods of HIV prevention, condoms are a safe and reliable method in addition to preventing pregnancy and other sexually transmitted infections, especially when used properly. This study aimed to determine the prevalence and determinants of condom use during last sexual intercourse among reproductive-aged women in Rwanda.

Methods

using data from the cross-sectional, nationally representative Rwanda Demographic and Health Survey (RDHS) conducted in 2019/2020, we carried out secondary data analysis. A multivariable logistic regression model was applied to determine the factors associated with condom use. All analyses from the model were adjusted for unequal sampling probabilities using survey weights.

Results

results showed a 10.8% prevalence of condom use. The odds of condom use during last sex were significantly lower for women who lived with a man (adjusted odds ratio [aOR]= 0.10, CI=0.08: 0.13) and those from the Southern region (aOR=0.69, CI= 0.52 to 0.92) but were significantly higher for those with primary education (aOR=1.38, CI= 1.00: 1.88). Also, the rich were more significantly associated with condom use compared to the poor (aOR=1.53, 95% CI= 1.20: 1.93). Those who had three or more sexual partners had higher odds of condom use than those with one partner (aOR=3.12, CI= 2.50: 3.89).

Conclusion

based on the results, health promotion interventions aimed at raising awareness on HIV prevention should, therefore, target the groups that were found to have a high risk of not using condoms.

Prevalence of risk factors for human immunodeficiency virus among sexually active women in Rwanda: a nationwide survey

BACKGROUND

The Human Immunodeficiency Virus (HIV) remains a global health burden, and despite the advancements in antiretroviral therapy and various strategies employed to curb HIV infections, the incidence of HIV remains disproportionately high among women. Therefore, this study aimed to determine the prevalence of the risk factors for the acquisition of HIV among sexually active women in Rwanda.

METHODS

Secondary data from the 2020 Rwanda Demographic Health Survey, comprising 10,684 sexually active women, was used. Multistage stratified sampling was employed to select the study participants. Multivariable logistic regression was conducted to determine the associated risk factors using the SPSS (version 25).

RESULTS

Of the 10,684 sexually active women, 28.7% (95% confidence interval (CI): 27.5-29.4) had at least one risk factor for HIV acquisition. Having no education (AOR = 3.65, 95%CI: 2.16-6.16), being unmarried (AOR = 4.50, 95%CI: 2.47-8.21), being from female-headed households (AOR = 1.75, 95%CI: 1.42-2.15), not having health insurance (AOR = 1.34, 95%CI: 1.09-1.65), no HIV test history (AOR = 1.44, 95%CI: 1.01-2.08), being from the poorest wealth quintile (AOR = 1.61, 95%CI: 1.14-2.27) and lack of exposure to mass media (AOR = 1.30, 95%CI: 1.07-1.58) were associated with higher odds of exposure to at least one HIV acquisition risk factor. In contrast, age groups of 25-34 (AOR = 0.56, 95%CI: 0.44-0.71) and 35-44 years (AOR = 0.62, 95%CI: 0.48-0.80), rural residence (AOR = 0.63, 95%CI: 0.49-0.81) and being from the western region (AOR = 0.67, 95%CI: 0.48-0.94) were associated with less odds of exposure to at least one HIV acquisition risk factor.

CONCLUSION

More than a quarter of sexually active women in Rwanda had exposure to at least one risk factor for HIV acquisition. There is a need to maximize the use of mass media in disseminating HIV prevention and behavioral change messages. Engagement of religious leaders and promotion of HIV testing, especially among the never-testers, may be vital strategies in successful HIV prevention programs.

Predicting HIV infection in the decade (2005-2015) pre-COVID-19 in Zimbabwe: A supervised classification-based machine learning approach

The burden of HIV and related diseases have been areas of great concern pre and post the emergence of COVID-19 in Zimbabwe. Machine learning models have been used to predict the risk of diseases, including HIV accurately. Therefore, this paper aimed to determine common risk factors of HIV positivity in Zimbabwe between the decade 2005 to 2015. The data were from three two staged population five-yearly surveys conducted between 2005 and 2015. The outcome variable was HIV status. The prediction model was fit by adopting 80% of the data for learning/training and 20% for testing/prediction. Resampling was done using the stratified 5-fold cross-validation procedure repeatedly. Feature selection was done using Lasso regression, and the best combination of selected features was determined using Sequential Forward Floating Selection. We compared six algorithms in both sexes based on the F1 score, which is the harmonic mean of precision and recall. The overall HIV prevalence for the combined dataset was 22.5% and 15.3% for females and males, respectively. The best-performing algorithm to identify individuals with a higher likelihood of HIV infection was XGBoost, with a high F1 score of 91.4% for males and 90.1% for females based on the combined surveys. The results from the prediction model identified six common features associated with HIV, with total number of lifetime sexual partners and cohabitation duration being the most influential variables for females and males, respectively. In addition to other risk reduction techniques, machine learning may aid in identifying those who might require Pre-exposure prophylaxis, particularly women who experience intimate partner violence. Furthermore, compared to traditional statistical approaches, machine learning uncovered patterns in predicting HIV infection with comparatively reduced uncertainty and, therefore, crucial for effective decision-making.

Informal sexual relationship-associated factors among young adult smartphone users in South of Iran: a cross-sectional study

BACKGROUND

With the unprecedented pace of modernization, risky sexual behaviors have become more frequent in developing countries, such as Iran. We aimed to assess the prevalence of informal sexual relationship (ISR) and factors associated with having ISR in young adult in Iran.

METHODS

This cross-sectional study was conducted on 414 young adult smartphone users in Iran, in 2019. Data was collected through an online questionnaire (including: ISR, socio-demographic variables, their use of social network, religious beliefs, personality, and loneliness). Logistic regression model was used to determine factors related to ISR.

RESULTS

A total of 152 (36.7%; 95% CI 32.1-45.6) participants reported having ISR. Finding an opposite-sex friend through a mobile app (OR = 2.59, 95% CI 1.34, 5.01), being currently sexually active (OR = 2.39, 95% CI 1.26, 4.56), higher scores of extroverted personality (OR = 1.13, 95% CI 1.01, 1.27), and closer relationship with parents (OR = 3.17, 95% CI 2.25, 8.02) were found to be associated with having ISR. Additionally, living in small cities rather than the provincial capital (OR = 0.23, 95% CI 0.10, 0.49) had a reverse association with having ISR.

CONCLUSIONS

This study illustrated the high prevalence of ISR and its association with increased duration of internet and mobile app use. Innovative and multidisciplinary approaches could be recommended in this regard.

Multiple sexual partnership among adolescent boys and young men in Ghana: analysis of the 2003-2014 Ghana Demographic and Health Survey

BACKGROUND

Multiple sexual partnership (MSP) is a major cause of HIV/AIDS epidemic and unplanned pregnancies in sub-Saharan Africa. We investigate how individual, household, interpersonal, community and structural factors correlate with multiple sexual partnership of adolescent boys and young men in Ghana.

METHODS

We pooled secondary data from the 2003, 2008 and 2014 Ghana Demographic and Health Surveys (GDHS). Analytic sample of 1422 males aged 15-24 years who are sexually active and never married were used for the study. The outcome variable for the study was two or more sexual partners in the last 12 months preceding the survey. Five models were fitted using multilevel mixed effects logistic regression to identify predictors of multiple sexual partners. Results were presented using adjusted odds ratios (ORadj) with its corresponding 95% confidence interval.

RESULTS

The pooled data prevalence of multiple sexual partnership was 28.1%, with 18.7%, 30.0% and 33.3% of adolescent boys and young men involved in multiple sexual partnerships in 2003, 2008 and 2014, respectively. Results of the study showed that young men aged 20-24 years [ORadj = 1.39, 95% CI = 1.01-1.91], being from household with richest wealth index [ORadj = 1.76, 95% CI = 1.01-3.06] and those with secondary/higher education [ORadj = 2.94, 95% CI = 1.44-6.06] were more likely to have multiple sexual partners. On the other hand, those who delayed their first sex [ORadj = 0.45, 95% CI = 0.29-0.70] and those currently using modern contraceptive methods [ORadj = 0.37, 95% CI = 0.28-0.50] were less likely to have multiple sexual partners.

CONCLUSION

The findings provide support for the social ecological argument that sexual health behaviours are influenced by individual, interpersonal, community and contextual characteristics. Future policies and interventions seeking to address the increasing prevalence of multiple sexual partnerships among adolescent boys and young men should take into consideration family planning programmes and sexual education in affluent communities, secondary and higher institutions.

Factors associated with HIV testing among youth in a generalised hyperendemic setting: findings from a national survey in Eswatini

Aim: Even though Eswatini was the first country in Africa to achieve the UNAIDS 95-95-95 targets among people living with HIV nationally, youth aged 15-24 years lag behind in HIV testing. This study determined the overall prevalence of HIV testing among the youth and the factors associated with HIV testing.Methods: Data were analysed for 1 834 young people from the 2016-2017 Swaziland HIV Incidence Measurement Survey (SHIMS2) using multivariable logistic regression.Results: Overall, 66% of the young people had tested for HIV in the past 12 months before SHIMS2. Lower odds of HIV testing were observed among males, among those aged 15-17 years, the never married/cohabited, those with primary and secondary education, and among those who had high perceived stigma towards people living with HIV and AIDS. Youth from households classified in the poor and middle quintiles had higher odds of testing for HIV compared to those from rich households.Conclusion: Efforts to increase HIV testing should consider the sociodemographic and behavioural factors identified as determinants of HIV non-testing in this age group.

Prevalence of risk factors for human immunodeficiency virus among women of reproductive age in Sierra Leone: a 2019 nationwide survey

Background and aim

For over 40 years of the HIV/AIDS global epidemic, no effective cure nor vaccine is yet available, making the current control strategies focused on curbing new infections through risk reduction. The study aimed to determine the prevalence of HIV risk factors and their associated socio-demographics among women of reproductive age in Sierra Leone.

Methods

We used weighted data from the Sierra Leone Demographic and Health Survey (SLDHS) of 2019 for 12,005 women aged 15–49 years. Multistage sampling was used to select study participants. Exposure to HIV risk factors was considered if a woman reported at least one of the following; having multiple sexual partners, transactional sex, non-condom use for the unmarried, and having other sexually transmitted infections (STIs). We, then, conducted multivariable logistic regression to explore the associated socio-demographics. All the analyses were done using SPSS (version 25).

Results

Of the 12,005 women, 38.1% (4577/12005) (95% confidence interval (CI) 37.3–39.0) had at least one of the four risk factors. Women of 15 to 19 years (adjusted odds ratio (AOR) = 1.34, 95% CI 1.00–1.80) and 20 to 34 years (AOR = 1.25, 95% CI 1.05–1.49) had more odds of having HIV risk factors compared to those of 35 to 49 years. Urban residents (AOR = 1.49, 95% CI 1.17–1.89) and those from the Northwestern region (AOR = 1.81, 95% CI 1.26–2.60) were also more likely to encounter HIV risk factors compared to their respective counterparts. Moreover, unmarried women (AOR = 111.17, 95% CI 87.55–141.18) and those working (AOR = 1.38, 95% CI 1.14–1.67) also had higher odds of having HIV risk factors, compared to their respective counterparts. Sex of household head and parity were also significant associates.

Conclusions

More than a third of women in Sierra Leone had encountered at least one HIV risk factor, and this was associated with age, place of residence, region, marital status, working status, household head and parity. There is a need for strengthening HIV/AIDS education programs, laws and policies targeting the young, working, unmarried and urban-resident women.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12879-022-07037-7.