Browsing by Author "Kalibbala, Dennis"

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    Factors Associated With Willingness to Use Oral Pre-exposure Prophylaxis (Prep) Among Fishing Communities in Peri-urban Kampala, Uganda
    (Research Square, 2021) Ssuna, Bashir; Katahoire, Anne; Armstrong-Hough, Mari; Kalibbala, Dennis; Kalyango, Joan N.; Matovu Kiweewa, Flavia
    The World Health Organization (WHO) recommends the use of pre-exposure prophylaxis (PrEP) in key populations at elevated risk for exposure to HIV. If used effectively, PrEP can reduce annual HIV incidence to below 0.05%. However, PrEP is not acceptable among all communities that might benefit from it. There is, therefore, a need to understand perceptions of PrEP and factors associated with willingness to use PrEP among key populations at risk of HIV, such as members of communities with exceptionally high HIV prevalence. Objective: To examine the perceptions and factors associated with willingness to use oral PrEP among members of fishing communities in Uganda, a key population at risk of HIV. Methods: We conducted an explanatory sequential mixed-methods study at Ggaba fishing community from February to June 2019. Survey data were collected from a systematic random sample of 283 community members. We carried out bivariate tests of association of willingness to use PrEP with demographic characteristics, HIV risk perception, HIV testing history. We estimated prevalence ratios for willingness to use PrEP. We used backward elimination to build a multivariable modified Poisson regression model to describe factors associated with willingness to use PrEP. We purposively selected 16 participants for focus group discussions to contextualize survey findings, analysing data inductively and identifying emergent themes related to perceptions of PrEP. Key results: We enrolled 283 participants with a mean age of 31±8 years. Most (80.9%) were male. The majority of participants had tested for HIV in their lifetime, but 64% had not tested in the past 6 months. Self-reported HIV prevalence was 6.4%. Most (80.6%, 95%CI 75.5-85.0) were willing in principle to use PrEP. Willingness to use PrEP was associated with perceiving oneself to be at high risk of HIV (aPR 1.99, 95%CI 1.31-3.02, P= 0.001), having tested for HIV in the past 6-months (aPR 1.13, 95%CI 1.03-1.24, P=0.007), and completion of tertiary education (aPR 1.97, 95%CI 1.39-2.81, P<0.001). In focus group discussions, participants described pill burden, side-effects, drug safety, and accessibility as potential barriers to PrEP use. Conclusions and recommendations: Oral PrEP was widely acceptable among members of fishing communities in peri-urban Kampala. Programs for scaling-up PrEP for fisherfolk should merge HIV testing services with sensitization about PrEP and also address issues of access to drugs.
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    Prevalence of neural tube defects, maternal HIV status, and antiretroviral therapy from a hospital-based birth defect surveillance in Kampala, Uganda
    (Birth defects research, 2022) Barlow-Mosha, Linda; Serunjogi, Robert; Kalibbala, Dennis; Mumpe-Mwanja, Daniel; Williamson, Dhelia; Valencia, Diana; Tinker, Sarah C.; Namale Matovu, Joyce; Moore, Cynthia A.; Adler, Michelle R.; Nelson, Lisa; Nankunda, Jolly; Nabunya, Evelyn; Birabwa-Male, Doreen; Musoke, Philippa
    The estimated prevalence of neural tube defects (NTDs) in Africa is 11.7 per 10,000 live births; however, data on the impact of antiretroviral therapy (ART) during pregnancy and the risk for birth defects in Africa are limited. Methods: Data from a hospital-based surveillance program at four hospitals in Kampala, Uganda were used to estimate the baseline prevalence of NTDs and assess potential associations with HIV status and ART use. All live births, stillbirths, and spontaneous abortions delivered at the participating hospitals affected with selected birth defects between August 2015 and December 2018 were included. Trained midwives collected data from hospital records, maternal interviews, photographs, and narrative descriptions of birth defects. We estimated NTD prevalence per 10,000 births (live, stillbirths, spontaneous abortions), prevalence ratios, and 95% confidence intervals (CIs). Results: A total of 110,752 births from 107,133 women were included in the analysis; 9,394 (8.8%) women were HIV-infected and among those with HIV infection, 95.6% (n = 8,977) were on ART at delivery. Overall, 109 births were affected with NTDs, giving a prevalence of 9.8 (95% CI [8.2, 11.9]). Spina bifida (n = 63) was the most common type of NTD, with a prevalence of 5.7 (95% CI [4.4, 7.3]), followed by anencephaly (n = 31), with a prevalence of 2.8 (95% CI [2.0, 4.0]). Conclusion: The prevalence of NTDs among births in Kampala, Uganda is consistent with current estimates for Africa. With the continued introduction of new medications that may be taken during pregnancy, sustainable birth defect surveillance systems and pharmacovigilance are indicated