Intervention Increases Physical Activity and Healthful Diet Among South African Adolescents Over 54 Months: A Randomized Controlled Trial.

PURPOSE: Scant research has investigated whether health promotion interventions have sustained effects in increasing physical activity and healthful diet among adolescents in sub-Saharan Africa, which is experiencing an epidemiological transition from infectious diseases to noncommunicable diseases as leading causes of mortality. We examined whether an intervention increased adherence to 5-a-day diet and physical activity guidelines during a 54-month postintervention period among South African adolescents and whether its effects weakened at long-term (42 and 54 months postintervention) compared with short-term (3, 6, and 12 months postintervention) follow-up. METHODS: We randomized 18 randomly selected schools serving grade 6 learners (mean age = 12.6) in a township and a semirural area in Eastern Cape Province, South Africa, to one of the two 12-hour interventions: health promotion, targeting healthful diet and physical activity; attention-matched control, targeting sexual risk behaviors. We tested the intervention's effects on adherence to 5-a-day diet and physical activity guidelines using generalized estimating equations logistic regression models adjusting for baseline behavior and clustering within schools. RESULTS: Health promotion intervention participants had higher odds of meeting 5-a-day diet and physical activity guidelines than control participants. The effect on 5-a-day diet did not weaken at long-term compared with short-term follow-up, but the effect on physical activity guidelines was weaker at long-term follow-up, mainly because of a reduced effect on muscle-strengthening physical activity. The intervention also increased health promotion attitude and intention and health knowledge and reduced binge drinking compared with the control group. CONCLUSIONS: A 12-hour intervention in grade 6 shows promise in increasing self-reported adherence to healthful diet and physical activity guidelines during a 4.5-year postintervention period among South African adolescents.

Predictors and psychological pathways for binge drinking among South African men.

OBJECTIVE: To develop targeted interventions for high-risk drinkers among South African men, we assessed whether sociodemographic factors and history of childhood sexual abuse predicted binge drinking at six-month follow-up assessment and their psychological pathways according to the extended Theory of Reasoned Action (TRA). DESIGN: Survey responses with a sample of 1181 South African men from randomly selected neighbourhoods in Eastern Cape Province were collected at baseline and six-month follow-up. Multiple logistic regression analysis examined the baseline predictors of binge drinking. Serial multiple mediation analysis examined the psychological pathways. MAIN OUTCOME MEASUREMENTS: Binge drinking at six-month follow-up. RESULTS: Age (OR = 1.03, 95% CI: 1.01, 1.05), religious participation (OR = .73, CI: .65, .82) and history of childhood sexual abuse (OR = 1.82, CI: 1.32, 2.51) were significant predictors of binge drinking. Predictions of religious participation and history of childhood sexual abuse were partially mediated through attitude, subjective norm, descriptive norm and intention to binge drinking. CONCLUSION: South African men with childhood sexual abuse experience and low religious participation were at higher risk for binge drinking. The extended TRA model explains the associations of these factors to binge drinking and can contribute to the design and evaluation of interventions.

Effect of a Behavioral Intervention on Perpetrating and Experiencing Forced Sex Among South African Adolescents: A Secondary Analysis of a Cluster Randomized Trial.

Importance: Scant research has investigated interventions to reduce forced sexual intercourse among adolescents. The need for such interventions is especially great in South Africa, which has some of the highest rates of sexual assault in the world. Objectives: To determine whether an HIV/sexually transmitted disease risk-reduction intervention that reduced sexual risk behavior and sexually transmitted disease prevalence also reduced the perpetration and experience of forced sex among South African adolescents. Design, Setting, and Participants: A cluster randomized clinical trial, at schools located in a township and a semirural area, Eastern Cape Province, South Africa. Matched pairs of schools were randomly selected (9 of 17); of 1118 students in sixth grade at these 18 schools who had parent or guardian consent, 1057 (94%) were enrolled, and those not reporting forced sex perpetration before the intervention were included in the analyses (n = 1052). Post hoc secondary analysis of a cluster randomized clinical trial was performed, with baseline and 3-, 6-, 12-, 42-, and 54-month postintervention assessments between October 4, 2004, and June 30, 2010. Generalized estimating equation Poisson regression analyses adjusting for gender and clustering within schools were conducted between August 23, 2017, and April 30, 2018. Recruiters and data collectors, but not intervention facilitators, were blind to the participants' intervention assignment. Interventions: Theory-based, culturally adapted, 6-session HIV/sexually transmitted disease risk-reduction intervention (Let Us Protect Our Future intervention) and attention-matched, chronic disease prevention control intervention implemented by specially trained man and woman cofacilitators from the community. Main Outcomes and Measures: Study outcomes for this secondary analysis (planned after the data were collected) are self-reports of perpetrating and experiencing forced vaginal intercourse. Results: Participants included 1052 adolescents (557 girls [53%]; mean [SD] age, 12.4 [1.2] years) reporting not perpetrating forced sex at baseline. Fewer intervention than control participants reported forced sex perpetration postintervention compared with the control group at 3 months (9 of 561 [2%] vs 20 of 491 [4%]; risk ratio [RR], 0.978; 95% CI, 0.959-0.997), 6 months (17 of 561 [3%] vs 35 of 491 [7%]; RR, 0.964; 95% CI, 0.941-0.988), 12 months (21 of 561 [4%] vs 42 of 491 [9%]; RR, 0.959; 95% CI, 0.934-0.985), 42 months (41 of 561 [7%] vs 56 of 491 [11%]; RR, 0.967; 95% CI, 0.937-0.998), and 54 months (52 of 561 [9%] vs 68 of 491 [14%]; RR, 0.964; 95% CI, 0.932-0.997). Conclusions and Relevance: In settings with high rates of sexual assault, the use of theory-based culturally adapted interventions with early adolescents may reduce rates of perpetrating and experiencing forced sex. Trial Registration: ClinicalTrials.gov Identifier: NCT00559403.

Childhood Sexual Abuse and Sociodemographic Factors Prospectively Associated with Intimate Partner Violence Perpetration Among South African Heterosexual Men.

BACKGROUND: Intimate partner violence directed at women by men continues to be a global concern. However, little is known about the factors associated with perpetrating intimate partner violence among heterosexual men. PURPOSE: History of childhood sexual abuse and other sociodemographic variables were examined as potential factors associated with severe intimate partner violence perpetration toward women in a sample of heterosexual men in South Africa. METHODS: Longitudinal logistic generalized estimating equations examined associations of childhood sexual abuse and sociodemographic variables at baseline with intimate partner violence perpetration at subsequent time points. RESULTS: Among participants with a steady female partner, 21.81 % (190/ 871) reported perpetrating intimate partner violence in the past year at baseline. Having a history of childhood sexual abuse (p < .001), binge drinking (p = .002), being employed (p = .050), and more difficulty controlling sexual impulses in order to use a condom (p = .006) at baseline were associated with self-reported intimate partner violence perpetration in the past year at subsequent time points. CONCLUSIONS: With high levels of recent severe physical and/or sexual intimate partner violence perpetration in South Africa, comprehensive interventions are urgently needed. To more fully address gender-based violence, it is important to address associated factors, including exposure to childhood sexual abuse that could impact behavior later in life and that have long-lasting and deleterious effects on men and their female partners.

HIV/STI risk-reduction intervention efficacy with South African adolescents over 54 months.

OBJECTIVE: Little research has tested HIV/sexually transmitted infection (STI) risk-reduction interventions' effects on early adolescents as they age into middle and late adolescence. This study tested whether intervention-induced reductions in unprotected intercourse during a 12-month period endured over a 54-month period and whether the intervention reduced the prevalence of STIs, which increase risk for HIV. METHOD: Grade 6 learners (mean age = 12.4 years) participated in a 12-month trial in Eastern Cape Province, South Africa, in which 9 matched pairs of schools were randomly selected and within pairs randomized to a theory-based HIV/STI risk-reduction intervention or an attention-control intervention. They completed 42- and 54-month postintervention measures of unprotected intercourse (the primary outcome), other sexual behaviors, theoretical constructs, and, at 42- and 54-month follow-up only, biologically confirmed curable STIs (chlamydial infection, gonorrhea, and trichomoniasis) and herpes simplex virus 2. RESULTS: The HIV/STI risk-reduction intervention reduced unprotected intercourse averaged over the entire follow-up period (OR = 0.42, 95% CI [0.22, 0.84]), an effect not significantly reduced at 42- and 54-month follow-up compared with 3-, 6-, and 12-month follow-ups. The intervention caused positive changes on theoretical constructs averaged over the 5 follow-ups, although most effects weakened at long-term follow-up. Although the intervention's main effect on STIs was nonsignificant, an Intervention Condition × Time interaction revealed that it significantly reduced curable STIs at 42-month follow-up in adolescents who reported sexual experience. CONCLUSION: These results suggest that theory-based behavioral interventions with early adolescents can have long-lived effects in the context of a generalized severe HIV epidemic.

Cognitive-behavioural health-promotion intervention increases fruit and vegetable consumption and physical activity among South African adolescents: a cluster-randomised controlled trial.

Rates of chronic diseases are high among Black South Africans but few studies have tested cognitive-behavioural health-promotion interventions to reduce this problem. We tested the efficacy of such an intervention among adolescents in a cluster-randomised controlled trial. We randomly selected 9 of 17 matched pairs of schools and randomised one school in each pair to the cognitive-behavioural health-promotion intervention designed to encourage health-related behaviours and the other to a human immunodeficiency virus (HIV)/sexually transmitted disease (STD) risk-reduction intervention that served as the control. Interventions were based on social cognitive theory, the theory of planned behaviour and qualitative data from the target population. Data collectors, blind to participants' intervention, administered confidential assessments at baseline and 3, 6 and 12 months post-intervention. Primary outcomes were fruit and vegetable consumption and physical activity. Participants were 1057 grade 6 learners (mean age = 12.4 years), with 96.7% retained at 12-month follow-up. Generalised estimating equations revealed that averaged over the follow-ups, a greater percentage of health-promotion intervention participants than HIV/STD control participants met 5-a-Day fruit and vegetable and physical activity guidelines. The intervention also increased health-promotion knowledge, attitude and intention, but did not decrease substance use or substance-use attitude and intention. The findings suggest that theory based and contextually appropriate interventions may increase health behaviours among young adolescents in sub-Saharan Africa.

School-based randomized controlled trial of an HIV/STD risk-reduction intervention for South African adolescents.

OBJECTIVE: To test the efficacy of a school-based human immunodeficiency virus/sexually transmitted disease (HIV/STD) risk-reduction intervention for South African adolescents. DESIGN: A cluster-randomized, controlled design with assessments of self-reported sexual behavior collected before intervention and 3, 6, and 12 months after intervention. SETTING: Primary schools in a large, black township and a neighboring rural settlement in Eastern Cape Province, South Africa. PARTICIPANTS: Nine of 17 matched pairs of schools were randomly selected. Sixth-grade students with parent or guardian consent were eligible. INTERVENTIONS: Two 6-session interventions based on behavior-change theories and qualitative research. The HIV/STD risk-reduction intervention targeted sexual risk behaviors; the attention-matched health promotion control intervention targeted health issues unrelated to sexual behavior. OUTCOME MEASURES: The primary outcome was self report of unprotected vaginal intercourse in the previous 3 months averaged over the 3 follow-ups. Secondary outcomes were other sexual behaviors. RESULTS: A total of 1057 (94.5%) of 1118 eligible students (mean age, 12.4 years) participated, with 96.7% retained at the 12-month follow-up. Generalized estimating equation analyses adjusted for clustering from 18 schools revealed that, averaged over the 3 follow-ups, a significantly smaller percentage of HIV/STD risk-reduction intervention participants reported having unprotected vaginal intercourse (odds ratio [OR], 0.51; 95% confidence interval [CI], 0.30-0.85), vaginal intercourse (OR, 0.62; 95% CI, 0.42-0.94), and multiple sexual partners (OR, 0.50; 95% CI, 0.28-0.89), when adjusted for baseline prevalences, compared with health-promotion control participants. CONCLUSION: This is the first large-scale, community-level, randomized intervention trial to show significant effects on the HIV/STD sexual risk behavior of South African adolescents in the earliest stages of entry into sexual activity.

South Africa youths' higher-risk sexual behaviour: an eco-developmental analysis.

Despite their high levels of knowledge about HIV and AIDS, young people ages 15-24 years in South Africa remain disproportionately affected by the epidemic. Young people's continued susceptibility to HIV infection has been consistently linked to intractable higher-risk sexual behaviours. This paper uses multivariate techniques and secondary data from two nationally representative surveys to illuminate individual and socio-structural factors that play a significant role in youths' continued engagement in higher-risk behaviour, despite their high awareness about HIV and AIDS. The findings show that notwithstanding progress in terms of increased condom use and reduced incidence of other sexually transmitted infections, the average age of sexual debut remains low, multiple sexual partnerships are prevalent, and inconsistent condom use is widespread among young people. Factors significantly associated with these risk behaviours occur at the individual and structural levels and include issues of race, gender, poverty and susceptibility to peer pressure. The paper concludes by recommending that future HIV-prevention interventions in South Africa should aim at building resilience among youths by promoting affirmative, supportive interventions that emphasize the potentials of young people.

Older people as resources in South Africa: Mpumalanga households.

The extended family used to be relied upon to provide subsistence and care for older people in sub-Saharan Africa. However, recently South Africa has seen a reversal of roles, where older people now provide subsistence and care to younger generations; this role reversal is being accelerated by HIV/AIDS deaths among young adults. In most rural households, the non-contributory old age pension (OAP) that is means-tested is an important factor in making older people breadwinners. Using data from the 2004 Mpumalanga Older People's Survey, we examined the changing role of older people, which has been influenced mainly by changes in household structure and old age pension. Findings show that in 63% of matrifocal, multigenerational households, 76% of older people are the sole providers of household necessities, caring for the sick and grandchildren in increasingly skip-generation households.