Factors associated with condom use in women from an urban area in southern Brazil

Zika virus public health crisis and the perpetuation of gender inequality in Brazil

BACKGROUND

In 2015-2017, the Americas experienced a highly consequential epidemics for pregnancy and childbearing. Mainly transmitted by the mosquito Aedes aegypti, but also through sexual intercourse, the Zika virus poses the risk of congenital Zika syndrome to fetus, which includes microcephaly and other child development complications. When a public health crisis taps directly into reproductive health, typically a feminine realm, responses to the emergency may exacerbate deeply-rooted gender norms. This paper investigates the role of gender in two relational contexts: (a) the government-led response to the pandemic in terms of communication campaigns aimed at preventing Zika infections; and (b) an individual level of response to the emergency, concerning women's negotiation with their sexual partners with regard to the prevention of Zika as well as pregnancies.

METHODS

We conducted content analysis of 94 unique pieces from public health communication campaigns produced by governmental agencies with the goal of promoting Zika awareness. Print and online materials were collected from May 2016 to August 2017, and included TV ads, Internet Pop-ups, and pamphlets. We also analyzed transcripts from 16 focus groups conducted with reproductive-aged women (18-40) in Belo Horizonte and Recife, two large cities differently affected by the Zika outbreak. Women answered open-ended questions connected to the epidemic, in areas such as personal knowledge and experiences with the Zika virus, experiences of their friends and acquaintances, their primary information sources, their perceptions of public health efforts toward containing the outbreak, as well as women's contraceptive use.

RESULTS

Campaign pieces handling pregnancy and microcephaly were largely gendered. Pieces targeted women, placing on their shoulders the responsibility for protecting a potential fetus from the disease. Importantly, campaigns neglected addressing male's participation on Zika prevention and contraceptive management, while failing to take into account Brazil's large proportion of unplanned pregnancies. Women were placed in a double bind by being expected to prevent both pregnancy and Zika, in a context where gendered power imbalances often translate in women having little power/means for condom negotiation/avoiding unprotected sexual intercourse.

CONCLUSION

Government and individual responses to the epidemics reinforced gender roles, situating pregnant women as responsible for averting mosquito bites and microcephaly. Further, prevention campaigns largely excluded men. Since low-socioeconomic status women possessed fewer resources to preclude infection, we also found that beyond the gender divide, this subgroup faced more pronounced Zika prevention challenges as they found it harder to negotiate condom use with their sexual partners and often could not access other types of contraceptives resulting in unplanned pregnancies.

Large benefits to youth-focused HIV treatment-as-prevention efforts in generalized heterosexual populations: An agent-based simulation model

Predominantly heterosexual HIV-1 epidemics like those in sub-Saharan Africa continue to have high HIV incidence in young people. We used a stochastic, agent-based model for age-disparate networks to test the hypothesis that focusing uptake and retention of ART among youth could enhance the efficiency of treatment as prevention (TasP) campaigns. We used the model to identify strategies that reduce incidence to negligible levels (i.e., < 0.1 cases/100 person-years) 20-25 years after initiation of a targeted TasP campaign. The model was parameterized using behavioral, demographic, and clinical data from published papers and national reports. To keep a focus on the underlying age effects we model a generalized heterosexual population with average risks (i.e., no MSM, no PWIDs, no sex workers) and no entry of HIV+ people from other regions. The model assumes that most people (default 95%, range in variant simulations 60-95%) are "linkable"; i.e., could get linked to effective care given sufficient resources. To simplify the accounting, we assume a rapid jump in the number of people receiving treatment at the start of the TasP campaign, followed by a 2% annual increase that continues until all linkable HIV+ people have been treated. Under historical scenarios of CD4-based targeted ART allocation and current policies of untargeted (random) ART allocation, our model predicts that viral replication would need to be suppressed in 60-85% of infected people at the start of the TasP campaign to drive incidence to negligible levels. Under age-based strategies, by contrast, this percentage dropped by 18-54%, depending on the strength of the epidemic and the age target. For our baseline model, targeting those under age 30 halved the number of people who need to be treated. Age-based targeting also minimized total and time-discounted AIDS deaths over 25 years. Age-based targeting yielded benefits without being highly exclusive; in a model in which 60% of infected people were treated, ~87% and ~58% of those initiating therapy during a campaign targeting those <25 and <30 years, respectively, fell outside the target group. Sensitivity analyses revealed that youth-focused TasP is beneficial due to age-related risk factors (e.g. shorter relationship durations), and an age-specific herd immunity (ASHI) effect that protects uninfected adolescents entering the sexually active population. As testing rates increase in response to UNAIDS 90-90-90 goals, efforts to link all young people to care and treatment could contribute enormously to ending the HIV epidemic.

Condom use in last sexual intercourse among undergraduate students: how many are using them and who are they?

A cross-sectional study was conducted to measure the prevalence of condom use in the last sexual intercourse and associated factors among university students. Undergraduate students from a public university aged 18 and over of the Rio Grande (RS) campuses were eligible. A systematic single-stage sampling was used, based on class lists and self-administered questionnaire. Descriptive, bivariate and multivariable analyses were employed, with Poisson regression for the latter two. Most of the 1,215 university students included in the analysis were aged 20 to 29 (65.6%) and 69.3% began their sexual life before the age of 18. The prevalence of condom use in the last intercourse was 41.5% (95%CI: 38.7-44.3). Male gender, lower age group, condom use at first sexual intercourse, older age of onset of sexual activity, not having a partner and casual partner in the last sexual intercourse increased the likelihood of condom use.

Structural and community-level interventions for increasing condom use to prevent the transmission of HIV and other sexually transmitted infections

BACKGROUND

Community interventions to promote condom use are considered to be a valuable tool to reduce the transmission of human immunodeficiency virus (HIV) and other sexually transmitted infections (STIs). In particular, special emphasis has been placed on implementing such interventions through structural changes, a concept that implies public health actions that aim to improve society's health through modifications in the context wherein health-related risk behavior takes place. This strategy attempts to increase condom use and in turn lower the transmission of HIV and other STIs.

OBJECTIVES

To assess the effects of structural and community-level interventions for increasing condom use in both general and high-risk populations to reduce the incidence of HIV and STI transmission by comparing alternative strategies, or by assessing the effects of a strategy compared with a control.

SEARCH METHODS

We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library, from 2007, Issue 1), as well as MEDLINE, EMBASE, AEGIS and ClinicalTrials.gov, from January 1980 to April 2014. We also handsearched proceedings of international acquired immunodeficiency syndrome (AIDS) conferences, as well as major behavioral studies conferences focusing on HIV/AIDS and STIs.

SELECTION CRITERIA

Randomized control trials (RCTs) featuring all of the following.1. Community interventions ('community' defined as a geographical entity, such as cities, counties, villages).2. One or more structural interventions whose objective was to promote condom use. These type of interventions can be defined as those actions improving accessibility, availability and acceptability of any given health program/technology.3. Trials that confirmed biological outcomes using laboratory testing.

DATA COLLECTION AND ANALYSIS

Two authors independently screened and selected relevant studies, and conducted further risk of bias assessment. We assessed the effect of treatment by pooling trials with comparable characteristics and quantified its effect size using risk ratio. The effect of clustering at the community level was addressed through intra-cluster correlation coefficients (ICCs), and sensitivity analysis was carried out with different design effect values.

MAIN RESULTS

We included nine trials (plus one study that was a subanalysis) for quantitative assessment. The studies were conducted in Tanzania, Zimbabwe, South Africa, Uganda, Kenya, Peru, China, India and Russia, comprising 75,891 participants, mostly including the general population (not the high-risk population). The main intervention was condom promotion, or distribution, or both. In general, control groups did not receive any active intervention. The main risk of bias was incomplete outcome data.In the meta-analysis, there was no clear evidence that the intervention had an effect on either HIV seroprevalence or HIV seroincidence when compared to controls: HIV incidence (risk ratio (RR) 0.90, 95% confidence interval (CI) 0.69 to 1.19) and HIV prevalence (RR 1.02, 95% CI 0.79 to 1.32). The estimated effect of the intervention on other outcomes was similarly uncertain: Herpes simplex virus 2 (HSV-2) incidence (RR 0.76, 95% CI 0.55 to 1.04); HSV-2 prevalence (RR 1.01, 95% CI 0.85 to 1.20); syphilis prevalence (RR 0.91, 95% CI 0.71 to 1.17); gonorrhoea prevalence (RR 1.16, 95% CI 0.67 to 2.02); chlamydia prevalence (RR 0.94, 95% CI 0.75 to 1.18); and trichomonas prevalence (RR 1.00, 95% CI 0.77 to 1.30). Reported condom use increased in the experimental arm (RR 1.20, 95% CI 1.03 to 1.40). In the intervention groups, the number of people reporting two or more sexual partners in the past year did not show a clear decrease when compared with control groups (RR 0.90, 95% CI 0.78 to 1.04), but knowledge about HIV and other STIs improved (RR 1.15, 95% CI 1.04 to 1.28, and RR 1.23, 95% CI 1.07 to 1.41, respectively). The quality of the evidence was deemed to be moderate for nearly all key outcomes.

AUTHORS' CONCLUSIONS

There is no clear evidence that structural interventions at the community level to increase condom use prevent the transmission of HIV and other STIs. However, this conclusion should be interpreted with caution since our results have wide confidence intervals and the results for prevalence may be affected by attrition bias. In addition, it was not possible to find RCTs in which extended changes to policies were conducted and the results only apply to general populations in developing nations, particularly to Sub-Saharan Africa, a region which in turn is widely diverse.

Predicting condom use in young women: demographics, behaviours and knowledge from a population-based sample in Brazil

The goal of this study was to assess condom use and related behaviour in young women in Vitória, Brazil. From March to December 2006, a cross-sectional sample of women aged 18-29 years was recruited into a population-based study. Risk behaviours for HIV and sexually transmitted infections (STIs) were surveyed. Condom use at last intercourse was assessed as a principal outcome describing protective sexual behaviour. Of 1200 eligible women identified, 1029 (85.8%) enrolled. Among them, 904 (87.9%) reported a history of sexual activity. Only 36.6% reported condom use at last intercourse; those who did were more likely to report commercial sex work (odds ratio [OR] 9.01 [1.46-55.55]), to state that STI prevention was a primary reason for using condoms (OR = 6.84 [4.81-9.71]), to have been previously diagnosed with an STI (OR = 2.39 [1.36-4.21]), to report that 'it is easy to tell a sexual partner they will not have vaginal/anal sex without a condom' (OR = 2.30 [1.56-3.39]), to report that sexual intercourse is only risky when people have anal sex (OR = 1.98 [1.22-3.22]); and less likely to be married (OR = 0.65 [0.54-0.78]), and to find it difficult to use condom consistently in all sexual encounters (OR = 0.36 [0.25-0.52]). Women who reported condom use were more concerned with preventing STIs, and to report less difficulty insisting on condom use with partners.

Prevalence of condom use and associated factors in a sample of university students in southern Brazil

This article focuses on the frequency of condom use and associated factors in university students, based on a cross-sectional study of 633 students in 2006. Associations were investigated using a logistic regression model with 5% significance. Condom use prevalence was 60%. Having candidiasis was a protective factor for condom use in both sexual initiation (OR = 0.49; 95%CI: 0.31-0.79) and the most recent sexual intercourse (OR = 0.39; 95%CI: 0.24-0.65). Condom use was associated with single marital status (OR = 2.89; 95%CI: 1.60-5.23) and having a sex partner from the health field (OR = 0.50; 95%CI: 0.34-0.75). Condom use was high in all sexual relations in this sample of university students. Single marital status and having a sex partner from a health-related course were positively associated with condom use in the most recent intercourse. Self-reported genital candidiasis was protective for condom use during early sexual activity and in the most recent sexual relation. Belonging to the health field did not show a significant impact on the use of male condoms.

[Determinants of condom use and heterosexual multiple sexual partnership in French Antilles and French Guiana]

BACKGROUND

After Subsaharan Africa, the Caribbean is the world's region most affected by HIV/AIDS. The French-American departments (Guadeloupe, Martinique, Guiana), FAD, are located in the heart of this region. Although lower than in other states of the Caribbean, AIDS incidence is much more higher than in France (up to 15 times more in Guiana). Transmission is mostly heterosexual. The frequency, particularly among men, of multiple sexual partnerships frequently taking place concurrently, and the persistence of this activity in older age, contribute to the level of the HIV epidemic and its characteristics. The purpose of this article is to identify, in the FAD, the determinants of condom use among persons with multiple sexual partners (either at last intercourse or during a concurrent relationship), taking into account the variety of multiple sexual partnership situations.

METHOD

Data are taken from an HIV/AIDS KABP survey, based on a probability sample of men and women aged 18 to 69 years, resident in FAD. In total, 3104 interviews were conducted by telephone in 2004: around 1000 in each department.

RESULTS

Among men and women who report two or more partners in the past five years, there is substantial heterogeneity in level of condom use at last intercourse, depending on the duration and type of the relationship: 73% of respondents reported condom use with a casual partner and 14% with a cohabiting partner. Men and women who were engaged in concurrent partnerships in the past five years were at higher risk of infection: 7% reported an STI versus 4% among those who had two or more partners, but not at the same time. Women, older persons, people with a lower level of education and those engaged in concurrent partnerships reported a lower level of condom use, thus increasing their vulnerability to HIV/AIDS.

CONCLUSION

Although HIV/AIDS prevention has increased among male and women engaged in multiple sexual partnerships, there is still a lack of consistent condom use in this population. These results highlight the need for more diversified prevention programs, taking into account sociodemographic factors and the diversity of situations involving multiple sexual partnership.

Adolescentes e uso de preservativos: as escolhas dos jovens de três capitais brasileiras na iniciação e na última relação sexual

O uso de preservativos pelos jovens aumentou, o que não significa que sejam utilizados em todas as relações sexuais; além disso, seu uso varia durante a trajetória afetivo-sexual. Estudou-se a prevalência e fatores associados ao uso de preservativo na iniciação sexual e na última relação sexual, para moças e rapazes de 18-24 anos. Os dados são da Pesquisa GRAVAD, um estudo transversal com amostra probabilística estratificada, através de entrevistas domiciliares, em três capitais brasileiras. Na análise, utilizou-se regressão logística multinomial seguindo modelo hierarquizado. A prevalência de uso de preservativo na iniciação, dentre os usuários de métodos contraceptivos, foi 80,7% pelas moças e 88,6% pelos rapazes. Este uso cai para 38,8% e 56%, respectivamente, na última relação. Nos dois eventos, o uso de preservativo esteve associado, para ambos os sexos, ao pertencimento social e à idade da iniciação. A utilização do preservativo na iniciação determina o uso na última relação (OR = 2,42 para os rapazes e 1,89 para as moças). O maior uso de preservativo entre os jovens não implica uso continuado. As moças utilizaram menos preservativo, comparadas aos rapazes, nos eventos estudados.