Perceived peer safer sex norms and sexual risk behaviors among substance-using Latino adolescents

Adoption of outgroup norms provides evidence for social transmission in perinatal care practices among rural Namibian women

Background and objectives

How do new ideas spread in social groups? We apply the framework of cultural evolution theory to examine what drives change in perinatal care norms among Himba women in the Kunene region of Namibia. Access to formal medical care is on the rise in this region, and medical workers regularly visit communities to promote WHO-recommended perinatal care practices. This study investigates how various forms of social transmission affect women's uptake of medical recommendations concerning perinatal care.

Methodology

Based on interviews with one hundred Himba mothers, we used Bayesian multi-level logistical regression models to examine how perceptions of group preferences, prestige ascribed to outgroup conformers, interaction with the outgroup and access to resources affect norm adoption.

Results

Women who perceive medical recommendations as common in their group prefer, plan and practice these recommendations more often themselves. We observed a shift toward medical recommendations regarding birth location and contraception use that was in line with conformity bias predictions. Practices that serve as cultural identity markers persist in the population.

Conclusions and implications

Norm changes, and the cultural evolutionary processes that can lead to them, are not uniform, either in process or pace. Empirical studies like this one provide important examples of how these changes reflect local culture and circumstance and are critical for better understanding the models that currently predominate in cultural evolution work. These cases can also help bridge the gap between evolutionary anthropology and public health by demonstrating where promotion and prevention campaigns might be most effective.

Lay Summary

The recent promotion of WHO-recommended perinatal care practices in Namibia provides an opportunity to empirically study norm change using a cultural evolution framework. We found women adopt medical recommendations when they believe these are common in their social group. Local norms that were not discouraged persisted in the study group.

Feasibility, Acceptability, and Preliminary Efficacy of a Brief Online Sexual Health Program for Adolescents

This study evaluated the feasibility, acceptability, and preliminary efficacy of a 45-minute interactive, online sexual health program for adolescents, called Health Education and Relationship Training (HEART). The program was originally developed and evaluated among adolescent girls (HEART for Girls); the current project describes and evaluates a new version of the program that was adapted for boys and girls. Participants were 226 high school students (mean age = 16.3; 58% girls; 46% White; 79% heterosexual). Students were randomized to HEART or an attention-matched control and assessed at pre-test and immediate post-test. Overall, the program was feasible to administer in a school setting and youth found the program highly acceptable (83% liked the program, 87% learned new things, and 93% would use program content in the future). At post-test, students who completed HEART demonstrated improvements on every outcome we examined: sexual communication intentions, condom use intentions, HIV/STD knowledge, condom attitudes, condom norms, self-efficacy to practice safer sex, and sexual assertiveness compared to control participants (effect size ds = .23 to 1.27). Interactions by gender and sexual orientation revealed the program was equally acceptable and worked equally well for boys and girls and for heterosexual and sexual minority youth. We propose several avenues to further adapt and tailor HEART given its promise in promoting adolescent sexual health.

Role of Social Network Sexual Norms and Behaviors on the HIV Sexual Risk Behaviors of People Who Inject Drugs in HPTN 037

This study examined the effect of social network descriptive sexual norms and behaviors on the sexual behaviors of people who inject drugs (PWID). Data from HPTN037 of 232 PWID (egos) and 464 network members (alters) were used in multilevel multivariate logistic regression models. Egos whose alters reported multiple sex partners had greater odds of multiple sex partners (aOR 2.20, 1.13-4.29). Egos' norms of condomless sex with primary (aOR 2.67, 1.15-6.17) and casual (aOR 2.38, 1.01-5.59) partners and egos' norms of giving (aOR 5.52, 1.87-16.25) and receiving (aOR 7.38, 1.34-40.66) money/drugs for sex were associated with the egos' respective behaviors. History of sex between an ego and alter was not associated with increased influence of alters' norms and behaviors on egos' sexual behavior. Findings provide support for developing interventions that target descriptive norms and selective network behavioral characteristics to decrease sexual HIV risk behavior among PWID.

Our Buddies, Ourselves: The Role of Sexual Homophily in Adolescent Friendship Networks

The present study tests the assumption that peers wield sufficient influence to induce sexual homophily (i.e., similarities in sexual experiences). Because girls face greater stigma for their sexual experiences than do boys, sexual homophily may be greater in girls' friendship networks than in boys'. Stochastic actor-based models were used to analyze network data (n = 2,566; ages 14-18) from two high schools in the National Longitudinal Study of Adolescent to Adult Health. Sexual homophily was present in friendship networks. Girls and boys were equally susceptible to their friends' influence, but the former exhibited a stronger preference for befriending same sexual debut status peers than the latter. The findings suggest that adolescents-particularly girls-"curate" their networks to minimize peer ostracism.

Actual Versus Perceived HIV Testing Norms, and Personal HIV Testing Uptake: A Cross-Sectional, Population-Based Study in Rural Uganda

HIV testing is an essential part of treatment and prevention. Using population-based data from 1664 adults across eight villages in rural Uganda, we assessed individuals' perception of the norm for HIV testing uptake in their village and compared it to the actual uptake norm. In addition, we examined how perception of the norm was associated with personal testing while adjusting for other factors. Although the majority of people had been tested for HIV across all villages, slightly more than half of men and women erroneously thought that the majority in their village had never been tested. They underestimated the prevalence of HIV testing uptake by 42 percentage points (s.d. = 17 percentage points), on average. Among men, perceiving that HIV testing was not normative was associated with never testing for HIV (AOR = 2.6; 95% CI 1.7-4.0, p < 0.001). Results suggest an opportunity for interventions to emphasize the commonness of HIV testing uptake.

Comparison of comprehensive and abstinence-only sexuality education in young African American adolescents

The purpose of this study was to identify predictors of sexual behavior and condom use in African American adolescents, as well as to evaluate the effectiveness of comprehensive sexuality and abstinence-only education to reduce adolescent sexual behavior and increase condom use. Participants included 450 adolescents aged 12-14 years in the southern United States. Regression analyses showed favorable attitudes toward sexual behavior and social norms significantly predicted recent sexual behavior, and favorable attitudes toward condoms significantly predicted condom usage. Self-efficacy was not found to be predictive of adolescents' sexual behavior or condom use. There were no significant differences in recent sexual behavior based on type of sexuality education. Adolescents who received abstinence-only education had reduced favorable attitudes toward condom use, and were more likely to have unprotected sex than the comparison group. Findings suggest that adolescents who receive abstinence-only education are at greater risk of engaging in unprotected sex.

A Systematic Review of Apps using Mobile Criteria for Adolescent Pregnancy Prevention (mCAPP)

Background

Adolescents in the United States and globally represent a high-risk population for unintended pregnancy, which leads to high social, economic, and health costs. Access to smartphone apps is rapidly increasing among youth, but little is known about the strategies that apps employ to prevent pregnancy among adolescents and young adults. Further, there are no guidelines on best practices for adolescent and young adult pregnancy prevention through mobile apps.

Objective

This review developed a preliminary evaluation framework for the assessment of mobile apps for adolescent and young adult pregnancy prevention and used this framework to assess available apps in the Apple App Store and Google Play that targeted adolescents and young adults with family planning and pregnancy prevention support.

Methods

We developed an assessment rubric called Mobile Criteria for Adolescent Pregnancy Prevention (mCAPP) for data extraction using evidence-based and promising best practices from the literature. mCAPP comprises 4 domains: (1) app characteristics, (2) user interface features, (3) adolescent pregnancy prevention best practices, and (4) general sexual and reproductive health (SRH) features. For inclusion in the review, apps that advertised pregnancy prevention services and explicitly mentioned youth, were in English, and were free were systematically identified in the Apple App Store and Google Play in 2015. Screening, data extraction, and 4 interrater reliability checks were conducted by 2 reviewers. Each app was assessed for 92 facets of the mCAPP checklist.

Results

Our search returned 4043 app descriptions in the Apple App Store (462) and Google Play (3581). After screening for inclusion criteria, 22 unique apps were included in our analysis. Included apps targeted teens in primarily developed countries, and the most common user interface features were clinic and health service locators. While app strengths included provision of SRH education, description of modern contraceptives, and some use of evidence-based adolescent best practices, gaps remain in the implementation of the majority of adolescent best practices and user interface features. Of the 8 best practices for teen pregnancy prevention operationalized through mCAPP, the most commonly implemented best practice was the provision of information on how to use contraceptives to prevent pregnancy (15/22), followed by provision of accurate information on pregnancy risk of sexual behaviors (13/22); information on SRH communication, negotiation, or refusal skills (10/22); and the use of persuasive language around contraceptive use (9/22).

Conclusions

The quality and scope of apps for adolescent pregnancy prevention varies, indicating that developers and researchers may need a supportive framework. mCAPP can help researchers and developers consider mobile-relevant evidence-based best practices for adolescent SRH as they develop teen pregnancy prevention apps. Given the novelty of the mobile approach, further research is needed on the impact of mCAPP criteria via mobile channels on adolescent health knowledge, behaviors, and outcomes.

Young women's sexual involvement in emerging adulthood

Using data from the Relationship Dynamics and Social Life Study, this study examined the association of peer, family, attitudinal, aspirational, and attainment factors relevant to 820 young women's (aged 18-19) number of sexual partners. Overall, this study found that perceived peer norms and early onset of sexual initiation had a positive and statistically significant association with the respondents' number of lifetime sexual partners. While high school performance and college aspirations were inversely associated with the number of lifetime partners, their current level of educational attainment was not. Finally, racial disparities in the accrual of partners were contingent upon the respondents' attitude to premarital abstinence and educationally related factors. Understanding risk and protective factors may help public health policy planners and health care professionals formulate a more effective ecologically based approach to mitigate sexual health risks and social repercussion related to dating for young women.

Individual-level protective factors for sexual health outcomes among sexual minority youth: a systematic review of the literature

Although factors associated with negative sexual health outcomes among sexual minority youth (SMY) have been well documented, protective factors have been less studied. This review summarises the current state of science on individual-level protective factors for SMY and identifies gaps to inform future research. A systematic search of non-intervention, empirical peer-reviewed research was conducted. Articles that examined an a priori-identified individual-level protective factor and at least one sexual health outcome in a sample or subsample of SMY aged 10-24 years in Western, industrialised countries were eligible for inclusion. A total of 21 articles that reported data from 13 unique studies met inclusion criteria. Only two studies described findings for young sexual minority women and thus the literature synthesis was limited to studies reporting on young men who have sex with men (YMSM) in the USA. A total of 11 individual-level protective factors were examined. Subjective peer norms and attitudes about condom use were repeatedly protective in cross-sectional analyses. Findings related to self-efficacy, self-esteem and clear and positive identity were more mixed. The findings of this review suggest that attitudes and subjective peer norms related to condom use are promising intervention targets for YMSM. There is a need, however, for longitudinal research to confirm these protective effects and to consider them among other SMY. Moreover, protective factors related to skills and competencies have been insufficiently studied among SMY. Addressing these gaps will help develop a robust body of evidence to inform interventions.

The effect of Teach One Reach One (TORO) on youth acceptance of couple violence

This study evaluated the impact of the Teach One Reach One intervention, a community-based participatory research project designed to address the co-occurrence of adolescent risk behaviors on acceptance of teen dating violence. Data were derived from 331 rural African American youth between 10-14 years of age who participated in caregiver-youth dyads as either: 1) peer lay health advisor dyads, or Ambassadors, 2) caregiver-youth dyads recruited by Ambassadors, or Allies, or 3) comparison dyads. The following study focuses on participating youth only and our results indicated that: 1) Ambassadors and Allies reported less acceptance of couple violence than youth within the comparison group, and 2) less family cohesion, greater family conflict, and greater knowledge of healthy dating behaviors predicted greater acceptance of couple violence. Our findings highlight the efficaciousness of the TORO intervention, which directly engaged participants in prevention efforts through community-based participatory research methods and the use of lay heath advisors.

Cultural influences on HIV testing among Latino youth

Young Latinos aged 13-24 years in the USA are disproportionately impacted upon by HIV. Despite the elevated risk, lower rates of HIV testing have been documented among Latino youth relative to other racial/ethnic groups. The objective of the current study was to examine the influence of acculturation and cultural values on HIV testing among Latino youth. The study consisted of 51 sexually experienced young Latinos aged 13-16 years from a major city in the Southeastern USA. Participants completed a survey on HIV testing history, cultural orientation and Latino cultural values. Results indicate that 21.6% of the young people had been tested for HIV. The number of times tested ranged from one to four (M = 1.9 ± 1.0). HIV testing was associated with US American cultural orientation and familism (and emphasis on strong family commitment, family support and emotional closeness). Participants with greater orientation to US American culture were more likely, whereas those who endorsed higher familism value were less likely, to have had an HIV test. For participants scoring high on familism, the desire to maintain family honour may serve as a deterrent to testing. Incorporating culturally relevant strategies, such as promoting sexual communication and conversations on HIV prevention within the family, may enhance testing and narrow the gap in HIV infection between Latino youth and other ethnic groups.

Examining the Principles of Influence on Safer Sex Communication During Casual and Committed Sexual Encounters

Teens and young people are at risk for contracting sexually transmitted infections. Understanding how relationship context may moderate the effectiveness of safer sex communication strategies among this demographic is important information for practitioners striving to promote safer sex behaviors. In this study, focus groups (N = 9) with college students were conducted and analyzed to examine the relation between 6 principles of influence (authority, consistency, liking, reciprocity, scarcity, and social proof) and safer sex communication during committed and casual sexual encounters. Results revealed that with the exceptions of social proof and consistency, the principles of influence were endorsed more frequently for casual than committed sexual encounters. For casual sexual encounters, the principles of authority, reciprocity, and scarcity arose as influential principles. For committed sexual encounters, the principles of consistency, liking, and reciprocity arose as influential principles. These results are discussed with an emphasis on the theoretical and practical implications.

Peer Influences on Sexual Activity among Adolescents in Ghana

Little is known about the influences of peers on the sexual activity of adolescents in sub-Saharan Africa. Better understanding of these issues could lead to more effective sexual and reproductive health interventions. Using two waves of survey data from 1,275 adolescents in two southeastern Ghanaian towns, we examine age, sex, and community differences in peer group characteristics. We also examine prospective associations between peer group characteristics and self-reported sexual initiation and multiple partnerships during a 20-month follow-up period. Sex differences in peer-context variables were small. Affiliation with antisocial peers and perceived peer norms favoring sex increased the odds of transition to first sex. Having more friends increased the odds among younger respondents of acquiring multiple new sexual partners. Among males, perceived peer norms favoring sex increased the odds of acquiring multiple partners. We discuss the implications of these findings for adolescent sexual and reproductive health intervention strategies in sub-Saharan Africa, and conclude that peer-based interventions may be best suited to the needs of at-risk adolescent boys.

Latino cultural values as protective factors against sexual risks among adolescents

The study objective was to examine the associations between cultural values and sexual risk factors among Latino youth. A sample of 226 Latino adolescents ages 13-16 completed a survey on cultural and sexual variables. Results indicate higher levels of Latino cultural orientation were related to greater sexual self-efficacy and fewer sexual partners for female adolescents and greater condom use self-efficacy for both males and females. Greater endorsement of simpatia (belief in interpersonal relationship harmony) was associated with sexual abstinence and greater sexual self-efficacy for all adolescents, and with being older at sexual debut for females. Stronger endorsement of respeto (respect towards parents and other authority figures) was correlated with a lower intention to have sex during secondary school and greater condom use self-efficacy. American cultural orientation was associated with less condom use. Our findings indicate Latino cultural values may serve as protective factors against sexual risk behaviors among Latino youth.

Adolescents' emotions prior to sexual activity and associations with sexual risk factors

The present study examined the link between the emotional context of sexual situations and sexual risk, specifically by examining the relationship of teens' recall of their affective states prior to sex with their sexual risk behaviors and attitudes. Adolescents (ages 13-19) attending therapeutic schools due to emotional and behavioral difficulties (n = 247) completed audio computer-assisted self-interviews regarding sexual behavior, including ratings of their emotions prior to last sexual activity. Positive emotions were most commonly endorsed (43-57 % of participants), however, significant proportions (8-23 %) also endorsed negative emotions prior to last sex. Both positive and negative emotions were significantly related to risk attitudes and behavior in regression analyses. The affective contexts of sexual experiences may be important predictors of risk in adolescence.

Acculturation and HIV-related sexual behaviours among international migrants: a systematic review and meta-analysis

This review examines the global literature regarding the relationship between acculturation and HIV-related sexual behaviours among international migrants. Seventy-nine articles published in English-language journals prior to July 2012 met the criteria for inclusion. We conducted a systematic review and subset meta-analysis of correlations between acculturation and five types of sexual behaviours including condom use, multiple partnerships, early sexual initiation, sexually transmitted diseases (STDs) and other unsafe sexual practices. Immigrants high in mainstream acculturation were more likely to have multiple partnerships, early sexual initiation, STDs and unsafe sex (rs ranged from 0.10 to 0.16), but acculturation was not associated with condom use (r = 0.02). Gender moderated the relationships between acculturation and multiple partnerships, STDs and unsafe sex. The relationship between acculturation and unsafe sex also varied across ethnicity. These findings suggest that acculturation may serve as a risk factor towards immigrants' HIV-related sexual health. We offered a theoretical framework and suggested applying cross-cultural and longitudinal designs in future research on acculturation and health behaviours.

Social support network characteristics and sexual risk taking among a racially/ethnically diverse sample of young, urban men who have sex with men

Associations between social support network characteristics and sexual risk among racially/ethnically diverse young men who have sex with men (YMSM) were examined using egocentric network data from a prospective cohort study of YMSM (n = 501) recruited in New York City. Bivariate and multivariable logistic regression analyses examined associations between social support network characteristics and sexual risk taking behaviors in Black, Hispanic/Latino, and White YMSM. Bivariate analyses indicated key differences in network size, composition, communication frequency and average relationship duration by race/ethnicity. In multivariable analyses, controlling for individual level sociodemographic, psychosocial and relationship factors, having a sexual partner in one's social support network was associated with unprotected sexual behavior for both Hispanic/Latino (AOR = 3.90) and White YMSM (AOR = 4.93). Further examination of key network characteristics across racial/ethnic groups are warranted in order to better understand the extant mechanisms for provision of HIV prevention programming to racially/ethnically diverse YMSM at risk for HIV.