scholarly journals Egocentric Networks and HIV in Pregnant and Breastfeeding Women Attending Antenatal Care in Lusaka, Zambia

2021 ◽  
Vol 6 (2) ◽  

Human immunodeficiency virus (HIV) has a disproportionate effect on pregnant and breastfeeding women in sub-Saharan Africa. This study used egocentric social network analysis (SNA) to compare the social and sexual networks of HIV-negative and HIV-positive women attending an antenatal care (ANC) clinic in Lusaka, Zambia. In order to assess risk and protective factors for HIV acquisition and transmission, variables included self (ego) sociodemographic characteristics, main partner characteristics, features of the relationship between ego and her main partner, alter attributes, alter-ego ties, and alter-alter ties. Associations between the independent variables and ego HIV status were identified using bivariate tests. Logistic regression analyses were performed to assess the relationship between predictors and ego HIV status when multiple variables were included in the same model. Overall, 219 participating women (69 HIV-positive, 150 HIV-negative) nominated 1095 alters. Compared to HIV-negative egos, HIV-positive egos were older, had main partners who were more likely to consume alcohol before sex, disclosed their HIV status to fewer alters, had fewer alters with whom they had daily interactions, and had more alters who were HIV-positive or HIV-unknown. Number of alters who were HIV-positive or HIV-unknown and non-disclosure of HIV status were the greatest risks (with the effect of HIV-positive or HIV-unknown being of a slightly greater magnitude than non-disclosure of HIV status), which places breastfeeding women, their partners and their infants at risk of preventable HIV infection.

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257324
Author(s):  
Oppah Kuguyo ◽  
Racheal S. Dube Mandishora ◽  
Nicholas Ekow Thomford ◽  
Rudo Makunike-Mutasa ◽  
Charles F. B. Nhachi ◽  
...  

Background High-risk human papillomavirus HPV (HR-HPV) modifies cervical cancer risk in people living with HIV, yet African populations are under-represented. We aimed to compare the frequency, multiplicity and consanguinity of HR-HPVs in HIV-negative and HIV-positive Zimbabwean women. Methods This was a cross-sectional study consisting of women with histologically confirmed cervical cancer attending Parirenyatwa Group of Hospitals in Harare, Zimbabwe. Information on HIV status was also collected for comparative analysis. Genomic DNA was extracted from 258 formalin fixed paraffin embedded tumour tissue samples, and analysed for 14 HR-HPV genotypes. Data was analysed using Graphpad Prism and STATA. Results Forty-five percent of the cohort was HIV-positive, with a median age of 51 (IQR = 42–62) years. HR-HPV positivity was detected in 96% of biospecimens analysed. HPV16 (48%), was the most prevalent genotype, followed by HPV35 (26%), HPV18 (25%), HPV58 (11%) and HPV33 (10%), irrespective of HIV status. One third of the cohort harboured a single HPV infection, and HPV16 (41%), HPV18 (21%) and HPV35 (21%) were the most prevalent. HIV status did not influence the prevalence and rate of multiple HPV infections (p>0.05). We reported significant (p<0.05) consanguinity of HPV16/18 (OR = 0.3; 95% CI = 0.1–0.9), HPV16/33 (OR = 0.3; 95% CI = 0.1–1.0), HPV16/35 (OR = 3.3; 95% CI = 2.0–6.0), HPV35/51 (OR = 6.0; 95%CI = 1.8–15.0); HPV39/51 (OR = 6.4; 95% CI = 1.8–15), HPV31/52 (OR = 6.2; 95% CI = 1.8–15), HPV39/56 (OR = 11 95% CI = 8–12), HPV59/68 (OR = 8.2; 95% CI = 5.3–12.4), HPV66/68 (OR = 7; 95% CI = 2.4–13.5), independent of age and HIV status. Conclusion We found that HIV does not influence the frequency, multiplicity and consanguinity of HR-HPV in cervical cancer. For the first time, we report high prevalence of HPV35 among women with confirmed cervical cancer in Zimbabwe, providing additional evidence of HPV diversity in sub-Saharan Africa. The data obtained here probes the need for larger prospective studies to further elucidate HPV diversity and possibility of selective pressure on genotypes.


2021 ◽  
pp. 1-26
Author(s):  
David A. Wiss ◽  
Marjan Javanbakht ◽  
Michael J. Li ◽  
Michael Prelip ◽  
Robert Bolan ◽  
...  

Abstract Objective: To understand the relationship between drug use, food insecurity (FI), and mental health among men who have sex with men (MSM). Design: Cohort study (2014-2019) with at least one follow-up. Setting: Visits at 6-month intervals included self-assessment for FI and depressive symptoms. Urine testing results confirmed drug use. Factors associated with FI were assessed using multiple logistic regression with random effects for repeated measures. General structural equation modeling tested whether FI mediates the relationship between drug use and depressive symptoms. Participants: Data were from HIV-positive and high-risk HIV negative MSM in Los Angeles, CA (n=431; 1,192 visits). Results: At baseline, FI was reported by 50.8% of participants, depressive symptoms in 36.7%, and 52.7% of urine screening tests were positive for drugs (i.e., marijuana, opioids, methamphetamine, cocaine, ecstasy). A positive drug test was associated with a 96% increase in the odds of being food insecure (95% CI: 1.26-3.07). Compared to those with high food security, individuals with very low food security have a nearly 7-fold increase in the odds of reporting depressive symptoms (95% CI: 3.71-11.92). Findings showed 14.9% of the association between drug use (exposure) and depressive symptoms (outcome) can be explained by FI (mediator). Conclusion: The prevalence of FI among this cohort of HIV-positive and high-risk HIV-negative MSM was high; the association between drug use and depressive symptoms was partially mediated by FI. Findings suggest that enhancing access to food and nutrition may improve mood in the context of drug use, especially among MSM at risk for HIV-transmission.


2010 ◽  
Vol 24 (4) ◽  
pp. 281-293 ◽  
Author(s):  
Gordon Mansergh ◽  
David J. McKirnan ◽  
Stephen A. Flores ◽  
Sharon M. Hudson ◽  
Beryl A. Koblin ◽  
...  

This study compared HIV-related attitudes and intentions by respondent HIV-status in a large sample of substance-using men who have sex with men (MSM) in the United States. Attitudes and intentions included self-efficacy for safer sex; difficulty communicating with sex partners about safer sex; intent to use condoms consistently and to not use substances before sex in the next 3 months; and less concern for HIV given effective antiviral treatments. Differences were found for behavior during the most recent anal sex encounter by HIV-status, including (a) insertive and (b) receptive anal sex risk behavior, and (c) substance use before or during the encounter. Self-efficacy for safer sex was associated with less risk behavior among HIV-negative men but not among HIV-positive men, suggesting that self-efficacy for safer sex continues to be a relevant issue to address in counseling uninfected MSM. HIV-positive men who reported less concern for HIV given treatments were more likely to report receptive risk behavior, as were HIV-negative men who reported difficulty communicating about safer sex. Implications are discussed for potentially heightened client desire and therapeutic opportunity to reduce future substance use during sex for clients who report recent substance use during sex.


2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S212-S213
Author(s):  
Timothy William. Menza ◽  
Lauren Lipira ◽  
Amisha Bhattarai ◽  
Joseph Ramirez ◽  
Roberto Orellana

Abstract Background Rectal gonorrhea and Chlamydia are common and predict HIV acquisition among men who have sex with men (MSM); however, screening for rectal sexually transmitted infections (STIs) is not routine. Methods In 2017, we recruited sexually-active MSM in the Portland, Oregon metropolitan area through venue-based sampling. Our outcome of interest was self-reported rectal STI screening in the prior 12 months. Stratified by HIV status, we assessed the prevalence and demographic, healthcare, clinical, and behavioral predictors of screening. Results Of 448 participants, 168 (37.5%) reported rectal STI screening. One hundred twenty-seven (35.8%) of 355 HIV-negative men, 41 (58.6%) of 70 HIV-positive men, and none of 23 men who did not know their HIV status reported screening. Among HIV-negative men, having a healthcare provider who offered HIV testing (adjusted prevalence ratio [aPR]=2.09; 95% confidence interval [CI]: 1.43, 3.04), a syphilis diagnosis (aPR=1.32; 95% CI: 1.03, 1.69), use of pre-exposure prophylaxis (aPR=1.57; 95% CI 1.21, 2.04), and condomless anal sex with casual partners in the prior 12 months (aPR=1.74; 95% CI: 1.36, 2.22) independently predicted screening for rectal STI in multivariable analysis. HIV-positive men who reported having a provider who always or often initiates conversations about sex were significantly more likely to report screening compared with men who did not have such a provider (aPR=1.48; 95% CI: 1.06, 2.06). Conclusion Rectal STI screening is not universal in a venue-based sample of sexually-active MSM. Implementing innovative, acceptable, and accessible screening practices and improving provider comfort with talking about sex are paramount to increasing rectal STI screening. Disclosures All authors: No reported disclosures.


Author(s):  
A M Ekanem ◽  
I P Oloyede ◽  
U E Ekrikpo ◽  
A U Idung ◽  
E Edward

Abstract Background Maternal and infant HIV status influences the decision of BCG immunization of infants at birth. The objective of this study was to determine the HIV status of HIV-exposed infants (HEIs) by the first HIV DNA PCR test and the rate of BCG uptake among the HEIs who were confirmed HIV negative. Methods This was a retrospective descriptive cross-sectional study involving the review of results of 99 dried blood samples (DBS) for the first HIV DNA PCR test of HEIs whose mothers were diagnosed HIV positive on presentation of the infants at first immunization visit at a Primary Health Centre from January 2018 to January 2019. Results Of the 99 DBS examined, 86; 86.9% (95% CI 80.1–93.6) were HIV negative, 9; 9.1% (95% CI 3.3–14.8) were positive while the results of 4 (4.0%) infants were not in the register. Only 7; 7.1% (95% CI 1.9–12.2) of the 99 HEIs returned for BCG immunization at the centre. BCG immunization status of the HEIs after first PCR results was not significantly associated with sex of the infants or availability of phone number of the guardians (p = 0.70 and 0.12, respectively). Conclusion The majority of HEIs were HIV negative at first HIV DNA PCR test. Few of these HIV negative infants returned for BCG immunization. Hence, all HEIs should be given BCG immunization according to WHO GAVCS committee recommendation on BCG immunization for settings with poor HIV diagnostic and treatment facilities for mothers and infants.


2020 ◽  
Vol 31 (2) ◽  
pp. 109-118
Author(s):  
Kristen Sweet ◽  
Claire Bosire ◽  
Busola Sanusi ◽  
Carly J Sherrod ◽  
Jessie Kwatampora ◽  
...  

Female sex workers (FSWs) have a notably high risk of acquiring human papillomavirus (HPV) infections. Relatively few studies address the type-specific prevalence and incidence of HPV among FSWs in sub-Saharan Africa. FSWs (n = 348) attending the Korogocho clinic in Nairobi, Kenya participated from August 2009 to March 2011. HPV DNA was detected using the SPF10-LiPA25 PCR assay. Baseline prevalence of HPV infection and cervical dysplasia were calculated, stratified by HIV-serostatus. Incidence rate (IR) of infection was calculated as number of new infections from baseline over person-months among 160 HPV-negative participants with complete 12-month follow-up. Baseline HPV prevalence was 23.6% for any HPV and 20.4% for high-risk HPV (hrHPV) types. Most prevalent types were HPV52 (10.1%), HPV35 (2.3%), and HPV51 (2.3%). A quarter (24%) of participants were HIV-positive. HPV prevalence was higher in HIV-positive (32.1%) than HIV-negative (20.8%) participants. hrHPV prevalence was higher in HIV-positive (27.4%) than HIV-negative (18.2%) women. During follow-up, HPV IR was 31.4 (95% CI: 23.8–41.5) for any HPV and 24.2 (95% CI: 17.9–32.8) for hrHPV types. HPV52 had the highest IR (6.0; 95% CI: 6.5–10.3). Overall HPV and hrHPV prevalence were lower than expected, but both prevalence and incidence were higher in HIV-positive than in HIV-negative women.


2018 ◽  
Vol 3 (4) ◽  
pp. e000833 ◽  
Author(s):  
Aaron S Karat ◽  
Noriah Maraba ◽  
Mpho Tlali ◽  
Salome Charalambous ◽  
Violet N Chihota ◽  
...  

IntroductionVerbal autopsy (VA) can be integrated into civil registration and vital statistics systems, but its accuracy in determining HIV-associated causes of death (CoD) is uncertain. We assessed the sensitivity and specificity of VA questions in determining HIV status and antiretroviral therapy (ART) initiation and compared HIV-associated mortality fractions assigned by different VA interpretation methods.MethodsUsing the WHO 2012 instrument with added ART questions, VA was conducted for deaths among adults with known HIV status (356 HIV positive and 103 HIV negative) in South Africa. CoD were assigned using physician-certified VA (PCVA) and computer-coded VA (CCVA) methods and compared with documented HIV status.ResultsThe sensitivity of VA questions in detecting HIV status and ART initiation was 84.3% (95% CI 80 to 88) and 91.0% (95% CI 86 to 95); 283/356 (79.5%) HIV-positive individuals were assigned HIV-associated CoD by PCVA, 166 (46.6%) by InterVA-4.03, 201 (56.5%) by InterVA-5, and 80 (22.5%) and 289 (81.2%) by SmartVA-Analyze V.1.1.1 and V.1.2.1. Agreement between PCVA and older CCVA methods was poor (chance-corrected concordance [CCC] <0; cause-specific mortality fraction [CSMF] accuracy ≤56%) but better between PCVA and updated methods (CCC 0.21–0.75; CSMF accuracy 65%–98%). All methods were specific (specificity 87% to 96%) in assigning HIV-associated CoD.ConclusionAll CCVA interpretation methods underestimated the HIV-associated mortality fraction compared with PCVA; InterVA-5 and SmartVA-Analyze V.1.2.1 performed better than earlier versions. Changes to VA methods and classification systems are needed to track progress towards targets for reducing HIV-associated mortality,


2008 ◽  
Vol 98 (5) ◽  
pp. 1829-1863 ◽  
Author(s):  
Rebecca L Thornton

This paper evaluates an experiment in which individuals in rural Malawi were randomly assigned monetary incentives to learn their HIV results after being tested. Distance to the HIV results centers was also randomly assigned. Without any incentive, 34 percent of the participants learned their HIV results. However, even the smallest incentive doubled that share. Using the randomly assigned incentives and distance from results centers as instruments for the knowledge of HIV status, sexually active HIV-positive individuals who learned their results are three times more likely to purchase condoms two months later than sexually active HIV-positive individuals who did not learn their results; however, HIV-positive individuals who learned their results purchase only two additional condoms than those who did not. There is no significant effect of learning HIV-negative status on the purchase of condoms. (JEL I12, O15)


2019 ◽  
Vol 96 (3) ◽  
pp. 197-203 ◽  
Author(s):  
Tyrone J Curtis ◽  
Alison J Rodger ◽  
Fiona Burns ◽  
Anthony Nardone ◽  
Andrew Copas ◽  
...  

ObjectiveLondon has one of the highest identified prevalence of chemsex (sexualised recreational drug use) among men who have sex with men (MSM) in Europe. We examine MSM’s patterns of chemsex and its association with HIV/STI risk behaviours, STI diagnoses and sexual healthcare-seeking behaviours, including if HIV testing behaviour met UK national guidelines (three monthly if engaging in chemsex).MethodsCross-sectional survey data from 2013 (n=905) and 2016 (n=739) were collected using anonymous, self-administered questionnaires from MSM recruited in commercial gay venues in London, UK. Descriptive and multivariable analyses, stratified by self-reported HIV status, were conducted. Adjusted prevalence ratios (aPR) with 95% CIs were calculated.ResultsComparing the 2013 and 2016 surveys, chemsex prevalence in the past year remained stable, in both HIV-negative/unknown-status MSM (20.9% in 2013 vs 18.7% in 2016, p=0.301) and HIV-positive MSM (41.6% in 2013 vs 41.7% in 2016, p=0.992). Combined 2013–2016 data showed that compared with other MSM, those reporting chemsex were more likely to report HIV/STI risk behaviours, including condomless anal intercourse with serodifferent HIV-status partners (HIV-negative/unknown-status men: aPR 2.36, 95% CI 1.68 to 3.30; HIV-positive men: aPR 4.19, 95% CI 1.85 to 9.50), and STI diagnoses in the past year (HIV-negative/unknown-status men: aPR 2.10, 95% CI 1.64 to 2.69; HIV-positive men: aPR 2.56, 95% CI 1.57 to 4.20). 68.6% of HIV-negative/unknown-status men reporting chemsex attended sexual health clinics and 47.6% had tested for HIV more than once in the past year.ConclusionsChemsex in London MSM remained stable but high, particularly among HIV-positive men. Irrespective of HIV status, chemsex was associated with engagement in HIV/STI risk behaviours. Frequency of HIV testing in the past year among HIV-negative/unknown-status men was below national recommendations. Promoting combination prevention strategies, including three monthly HIV/STI testing, access to pre-exposure prophylaxis/antiretroviral treatment and behavioural interventions among MSM reporting chemsex, remains vital to address sexual health inequalities in MSM.


2020 ◽  
Vol 12 ◽  
pp. 175883592096300
Author(s):  
Kongsak Loharamtaweethong ◽  
Napaporn Puripat ◽  
Niphon Praditphol ◽  
Jidapa Thammasiri ◽  
Siriwan Tangitgamol

Background: The programmed death-1/programmed death-ligand-1 (PD-1/PD-L1) axis may represent a target for cervical cancer; however, it is poorly understood in human immunodeficiency virus (HIV)-infected patients. Methods: We evaluated HIV-positive ( n = 42) and HIV-negative ( n = 110) women with locally advanced cervical cancer regarding their PD-L1 expression, determined by combined positive score (CPS) ⩾ 1 and tumor proportion score (TPS) ⩾ 25%, and PD-L1 copy number alterations, assessed by fluorescence in situ hybridization. Results: Regardless of HIV status, 84.9% and 44.8% of cases were PD-L1-positive according to CPS ⩾ 1 and TPS ⩾ 25%. Per CPS ⩾ 1, PD-L1 positive rate was similar between HIV-positive and HIV-negative women, whereas a significant difference was seen per TPS ⩾ 25%. Tumor size and parametrial invasion were correlated with PD-L1 positivity in HIV-negative women, whereas anti-retroviral therapy (ART) was correlated with TPS < 25%. Low CD4-positive cell counts were associated with CPS < 1 in HIV-positive women. No significant difference was observed in PD-L1 copy number status between HIV-positive and HIV-negative women. PD-L1 amplification and polysomy were independently associated with TPS ⩾ 25%, whereas the presence of parametrial invasion was independently associated with CPS ⩾ 1. Cancer stage and PD-L1 amplification were identified as independent predictors of recurrence-free survival [hazard ratio (HR) = 2.40 (1.32–4.36) and HR = 5.33 (1.94–14.61)] and cancer-specific survival [HR = 13.62 (5.1–36.38) and HR = 3.53 (1.43–8.69)]. PD-L1 polysomy was an independent predictor of locoregional recurrence-free survival [HR = 3.27 (1.27–8.41)]. HIV status and PD-L1 expression (CPS ⩾ 1 or TPS ⩾ 25%) were not associated with poor patient outcomes. Conclusion: PD-L1 amplification and polysomy are the strongest drivers of PD-L1 expression in cervical cancer, and could represent prognostic biomarkers for anti-PD-1/PD-L1 therapy. Cervical cancer biology may be modulated by HIV infection, CD4-positive cells, and HIV treatments.


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