RESUMEN
Within HIV-endemic settings, few studies have examined gendered associations between sexual self-efficacy (SSE), one's confidence or perceived control over sexual behavior, and uptake of HIV prevention behaviors. Using cross-sectional survey data from 417 sexually-experienced adolescents (aged 14-19, median age = 18, 60% female) in Soweto, South Africa, we measured SSE using a 6-item scale (range:0-6) with 'high-SSE' = score > 3 (study alpha = 0.75). Gender-stratified logistic regression models assessed associations between high-SSE and lifetime consistent condom use. A higher proportion of women reported high-SSE (68.7%) than men (49.5%, p < 0.001). We observed no difference in reported consistent condom use by gender (45.5% among women, 45.8% among men; p = 0.943). In confounder models, high-SSE was associated with consistent condom use among men (aOR = 3.51, 95%CI = 1.86-6.64), but not women (aOR = 1.43, 95%CI = 0.74-2.77). Findings highlight that individual-level psychosocial factors are insufficient for understanding condom use and must be considered alongside the relational, social, and structural environments within which young women navigate their sexual lives.
Asunto(s)
Conducta del Adolescente , Condones , Infecciones por VIH/psicología , Sexo Seguro/psicología , Autoeficacia , Adolescente , Estudios Transversales , Toma de Decisiones , Femenino , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Humanos , Masculino , Percepción , Sexo Seguro/estadística & datos numéricos , Factores Sexuales , Conducta Sexual , Sudáfrica/epidemiología , Adulto JovenRESUMEN
Sexual self-efficacy (SSE) - one's confidence in their ability to perform given sexual behaviours, has been shown to predict adolescents' HIV-prevention practices (e.g., Condom use). Few studies within sub-Saharan Africa, where HIV incidence and prevalence disproportionately affects young women, have examined gendered differences in SSE. We used multivariable logistic regression to identify correlates of high-SSE separately among adolescent men and women (aged 14-19) in Soweto, South Africa using a previously validated SSE scale (high-SSE [>3/6 items]; study-alpha = 0.75). SSE scale items assessed self-efficacy related to sexual refusal and condom use. Adolescent women were significantly more likely to report high-SSE than adolescent men (72.3% versus 49.5%; p < 0.01). High-SSE among adolescent men was associated with more positive beliefs about sexual relationships and negatively associated with probable depression. High-SSE among adolescent women was associated with increased HIV knowledge, more positive beliefs about condom use and sexual relationships, having an adult in the home, and negatively associated with being an older adolescent (16-17 versus ≤15), and ever experiencing physical violence. Differences in prevalence and correlates of SSE among adolescent men and women in South Africa highlight important areas for gender-sensitive interventions. Targeted efforts to reduce negative sexual beliefs, improve HIV knowledge and mental well-being may improve SSE and thus the uptake of HIV-prevention practices among adolescent men. For adolescent women, findings indicate programming should move beyond individual-levels determinants of behaviour to focus on improving enabling environments (e.g., Reduced violence and improved family relationships) in which sexual agency can be enacted.
Asunto(s)
Infecciones por VIH/prevención & control , Conocimientos, Actitudes y Práctica en Salud , Sexo Seguro/psicología , Autoeficacia , Adolescente , Factores de Edad , Condones/estadística & datos numéricos , Composición Familiar , Femenino , Humanos , Relaciones Interpersonales , Masculino , Factores Sexuales , Sudáfrica , Violencia/psicología , Adulto JovenRESUMEN
BACKGROUND: Youth trauma exposure is associated with syndemic HIV risk. We measured lifetime prevalence, type, and correlates of trauma experience by gender among adolescents living in the HIV hyper-endemic setting of Soweto, South Africa. METHODS: Using data from the Botsha Bophelo Adolescent Health Survey (BBAHS), prevalence of "ever" experiencing a traumatic event among adolescents (aged 14-19) was assessed using a modified Traumatic Event Screening Inventory-Child (TESI-C) scale (19 items, study alpha = 0.63). We assessed self-reported number of potentially traumatic events (PTEs) experienced overall and by gender. Gender-stratified multivariable logistic regression models assessed independent correlates of 'high PTE score' (≥7 PTEs). RESULTS: Overall, 767/830 (92%) participants were included (58% adolescent women). Nearly all (99.7%) reported experiencing at least one PTE. Median PTE was 7 [Q1,Q3: 5-9], with no gender differences (p = 0.19). Adolescent men reported more violent PTEs (e.g., "seen an act of violence in the community") whereas women reported more non-violent HIV/AIDS-related PTEs (e.g., "family member or someone close died of HIV/AIDS"). High PTE score was independently associated with high food insecurity among adolescent men and women (aOR = 2.63, 95%CI = 1.36-5.09; aOR = 2.57, 95%CI = 1.55-4.26, respectively). For men, high PTE score was also associated with older age (aOR = 1.40/year, 95%CI = 1.21-1.63); and recently moving to Soweto (aOR = 2.78, 95%CI = 1.14-6.76). Among women, high PTE score was associated with depression using the CES-D scale (aOR = 2.00, 95%CI = 1.31-3.03,) and inconsistent condom use vs. no sexual experience (aOR = 2.69, 95%CI = 1.66-4.37). CONCLUSION: Nearly all adolescents in this study experienced trauma, with gendered differences in PTE types and correlates, but not prevalence. Exposure to PTEs were distributed along social and gendered axes. Among adolescent women, associations with depression and inconsistent condom use suggest pathways for HIV risk. HIV prevention interventions targeting adolescents must address the syndemics of trauma and HIV through the scale-up of gender-transformative, youth-centred, trauma-informed integrated HIV and mental health services.
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Infecciones por VIH/prevención & control , Conducta Sexual/estadística & datos numéricos , Violencia/estadística & datos numéricos , Adolescente , Servicios de Salud del Adolescente , Estudios Transversales , Femenino , Humanos , Entrevistas como Asunto , Masculino , Prevalencia , Sudáfrica/epidemiología , Encuestas y Cuestionarios , Adulto JovenRESUMEN
This study examined the prevalence and correlates associated with lifetime and recent violence among a sample of harder-to-reach human immunodeficiency virus (HIV)-positive women living in British Columbia (BC), Canada. Interviewer-led surveys with 1000 participants gathered quantitative data on social, economic, and structural characteristics such as housing status, relationship status, family structure, history of drug use, and sexual behavior. Logistic regression analysis modeled associations between independent variables and experiences of violence at baseline. Cox regression analyses with time-dependent covariates determined correlates of lifetime and recent violence among HIV-positive women. Of the 249 women in the study, an overwhelming proportion of women (81%) reported experiences of violence in their lifetime. Among those, 22% reported recent experiences of violence, and 56% of the women reported more than five violent episodes in their lifetime. Lifetime violence was independently associated with HIV-related stigma (adjusted odds ratio [AOR] = 2.18, 95% confidence interval [CI] = 1.14-5.70), previous tobacco use (AOR = 2.79, 95% CI = 1.10-7.07), ever having a drinking problem (AOR = 2.82, 95% CI = 1.28-6.23), and ever having received care for a mental health condition (AOR = 2.42, 95% CI = 1.06-5.52). Recent violence was associated with the current illicit drug use (AOR = 2.60, 95% CI = 1.14-5.90), and currently residing in unstable housing (AOR = 2.75, 95% CI = 1.31-5.78). This study underscores the need to consider potential experiences of historical and current violence as part of comprehensive care for women living with HIV.
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Infecciones por VIH/epidemiología , Vivienda/estadística & datos numéricos , Conducta Sexual/estadística & datos numéricos , Trastornos Relacionados con Sustancias/epidemiología , Violencia/estadística & datos numéricos , Salud de la Mujer , Adulto , Colombia Británica/epidemiología , Femenino , Humanos , Salud Mental , Persona de Mediana Edad , Evaluación de Necesidades , Prevalencia , Factores de Riesgo , Población Rural , Conducta Sexual/psicología , Clase Social , Encuestas y Cuestionarios , Violencia/prevención & control , Violencia/psicologíaRESUMEN
Reasons for incident cases of vertical HIV transmission in the era of free access to PMTCT in South Africa were investigated. This mixed-methods study was conducted in Soweto, South Africa from June-August, 2009. Birthmothers of HIV-infected infants born after 1 December 2008 were eligible. All participants completed an interviewer-administered questionnaire. Women also participated in a focus group (n = 10) or individual structured interview (n = 35). Mean age of participants (n = 45) was 28.7 years (SD = 5.4). Major findings are: (i) failure of per-guideline prescription of ARV strategies for infants (31%) and/or mothers (57%); (ii) maternal refusal of treatment (n = 5); (iii) preterm delivery (31%); (iv) delayed ANC attendance because of facility-related barriers and maternal apprehension around HIV testing; (v) fear of stigma; (vi) maternal difficulty with administering infant AZT (n = 9) and (vii) maternal confusion about infant feeding. A variety of individual, social, and structural factors must be addressed to optimize PMTCT service delivery in South Africa.
Asunto(s)
Antirretrovirales/administración & dosificación , Infecciones por VIH/prevención & control , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Madres/psicología , Complicaciones Infecciosas del Embarazo/prevención & control , Adulto , Femenino , Grupos Focales , Infecciones por VIH/transmisión , Conocimientos, Actitudes y Práctica en Salud , Accesibilidad a los Servicios de Salud , Humanos , Recién Nacido , Servicios de Salud Materna/organización & administración , Madres/estadística & datos numéricos , Aceptación de la Atención de Salud , Embarazo , Prejuicio , Investigación Cualitativa , Factores Socioeconómicos , Sudáfrica , Encuestas y CuestionariosRESUMEN
A literature review of original research articles on adherence to antiretroviral therapy (ART) in developed countries, covering January 2000 to June 2011, was conducted to determine if gender differences exist in the prevalence of nonadherence to ART. Of the 1,255 articles reviewed, only 189 included data on the proportion of the study population that was adherent and only 57 (30.2%) of these reported proportional adherence values by gender. While comparing articles was challenging because of varied reporting strategies, women generally exhibit poorer adherence than men. Thirty of the 44 articles (68.2%) that reported comparative data on adherence by gender found women to be less adherent than men. Ten articles (17.5%) reported significant differences in proportional adherence by gender, nine of which showed women to be less adherent than men. These findings suggest that in multiple studies from developed countries, female gender often predicts lower adherence. The unique circumstances of HIV-positive women require specialized care to increase adherence to ART.
Asunto(s)
Terapia Antirretroviral Altamente Activa , Infecciones por VIH/tratamiento farmacológico , Cumplimiento de la Medicación , Factores Sexuales , Países Desarrollados , Femenino , Humanos , MasculinoRESUMEN
BACKGROUND: Studies suggest that Aboriginal people in Canada are over-represented among people using injection drugs. The factors associated with transitioning to the use of injection drugs among young Aboriginal people in Canada are not well understood. METHODS: The Cedar Project is a prospective cohort study (2003-2007) involving young Aboriginal people in Vancouver and Prince George, British Columbia, who use illicit drugs. Participants' venous blood samples were tested for antibodies to HIV and the hepatitis C virus, and drug use was confirmed using saliva screens. The primary outcomes were use of injection drugs at baseline and tranisition to injection drug use in the six months before each follow-up interview. RESULTS: Of 605 participants, 335 (55.4%) reported using injection drugs at baseline. Young people who used injection drugs tended to be older than those who did not, female and in a relationship. Participants who injected drugs were also more likely than those who did not to have been denied shelter because of their drug use, to have been incarcerated, to have a mental illness and to have been involved in sex work. Transition to injection drug use occurred among 39 (14.4%) participants, yielding a crude incidence rate of 19.8% and an incidence density of 11.5 participants per 100 person-years. In unadjusted analysis, transition to injection drug use was associated with being female (odds ratio [OR] 1.98, 95% confidence interval (CI) 1.06-3.72), involved in sex work (OR 3.35, 95% CI 1.75-6.40), having a history of sexually transmitted infection (OR 2.01, 95% CI 1.07-3.78) and using drugs with sex-work clients (OR 2.51, 95% CI 1.19-5.32). In adjusted analysis, transition to injection drug use remained associated with involvement in sex work (adjusted OR 3.94, 95% CI 1.45-10.71). INTERPRETATION: The initiation rate for injection drug use of 11.5 participants per 100 person-years among participants in the Cedar Project is distressing. Young Aboriginal women in our study were twice as likely to inject drugs as men, and participants who injected drugs at baseline were more than twice as likely as those who did not to be involved in sex work.
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Abuso de Sustancias por Vía Intravenosa/etnología , Adolescente , Adulto , Factores de Edad , Colombia Británica/epidemiología , Distribución de Chi-Cuadrado , Femenino , Encuestas Epidemiológicas , Humanos , Incidencia , Indígenas Norteamericanos , Entrevistas como Asunto , Inuk , Modelos Logísticos , Masculino , Prevalencia , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Factores de Riesgo , Factores Sexuales , Abuso de Sustancias por Vía Intravenosa/epidemiologíaRESUMEN
Food insecurity has been linked to high-risk sexual behavior in sub-Saharan Africa, but there are limited data on these links among people living with HIV/AIDS, and on the mechanisms for how food insecurity predisposes individuals to risky sexual practices. We undertook a series of in-depth open-ended interviews with 41 individuals living with HIV/AIDS to understand the impact of food insecurity on sexual-risk behaviors. Participants were recruited from the Immune Suppression Clinic at the Mbarara University of Science and Technology in Mbarara, Uganda. Interviews were recorded, transcribed verbatim, translated, and coded following the strategy of grounded theory. Four major themes emerged from the interview data: the relationship between food insecurity and transactional sex for women; the impact of a husband's death from HIV on worsening food insecurity among women and children; the impact of food insecurity on control over condom use, and the relationship between food insecurity and staying in violent/abusive relationships. Food insecurity led to increased sexual vulnerability among women. Women were often compelled to engage in transactional sex or remain in violent or abusive relationships due to their reliance on men in their communities to provide food for themselves and their children. There is an urgent need to prioritize food security programs for women living with HIV/AIDS and address broader gender-based inequities that are propelling women to engage in risky sexual behaviors based on hunger. Such interventions will play an important role in improving the health and well-being of people living with HIV/AIDS, and preventing HIV transmission.
Asunto(s)
Abastecimiento de Alimentos , Infecciones por VIH/epidemiología , Asunción de Riesgos , Conducta Sexual/psicología , Adulto , Condones/economía , Condones/estadística & datos numéricos , Enfermedades Endémicas , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Humanos , Hambre , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Factores de Riesgo , Trabajo Sexual , Factores Socioeconómicos , Uganda/epidemiología , Violencia , Adulto JovenRESUMEN
The concept of minimal risk has been used to regulate and limit participation by adolescents in clinical trials. It can be understood as setting an absolute standard of what risks are considered minimal or it can be interpreted as relative to the actual risks faced by members of the host community for the trial. While commentators have almost universally opposed a relative interpretation of the environmental risks faced by potential adolescent trial participants, we argue that the ethical concerns against the relative standard may not be as convincing as these commentators believe. Our aim is to present the case for a relative standard of environmental risk in order to open a debate on this subject. We conclude by discussing how a relative standard of environmental risk could be defended in the specific case of an HIV vaccine trial among adolescents in South Africa.
Asunto(s)
Vacunas contra el SIDA/administración & dosificación , Adolescente , Ensayos Clínicos como Asunto/ética , Investigación Participativa Basada en la Comunidad/ética , Infecciones por VIH/prevención & control , Selección de Paciente/ética , Prevención Primaria/ética , Asunción de Riesgos , Equipoise Terapéutico , Poblaciones Vulnerables , Vacunas contra el SIDA/efectos adversos , Vacunas contra el SIDA/inmunología , Ensayos Clínicos como Asunto/métodos , Ensayos Clínicos como Asunto/normas , Investigación Participativa Basada en la Comunidad/métodos , Investigación Participativa Basada en la Comunidad/normas , Ética en Investigación , Femenino , Salud Global , Infecciones por VIH/inmunología , Infecciones por VIH/transmisión , Hepatitis/prevención & control , Humanos , Institucionalización , Discapacidad Intelectual , Masculino , Experimentación Humana no Terapéutica/ética , Prevención Primaria/métodos , Investigadores/ética , Riesgo , Sudáfrica , Sexo Inseguro , Adulto JovenRESUMEN
The scale up of highly active antiretroviral therapy (HAART) for the treatment of HIV has raised new concerns relating to fertility desires and outcomes. Among these concerns is social stigma surrounding HIV and childbearing. High rates of infection and patterns of high fertility make adolescents a crucial demographic to qualify perceptions of HIV and fertility. We conducted two focus groups (n = 11 males, n = 8 females) with participants ascertained from an HIV adolescent community advisory board in Soweto, South Africa. Adolescents raised concern over re-infection by HIV positive couples attempting to conceive. They also used this concern to justify their attitudes that HIV positive couples should adopt when faced with the desire to have children. Lastly, participants spoke of a need to revise adolescent sexual and reproductive health services to make them more youth-friendly where users could avoid stigma generated by community healthcare workers. This study adds to the growing literature that calls for an evaluation of adolescent HIV educational programs and a healthcare worker intervention that specifically targets stigma surrounding HIV and childbearing.
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Fertilidad , Infecciones por VIH/psicología , Conocimientos, Actitudes y Práctica en Salud , Estereotipo , Adolescente , Conducta del Adolescente , Servicios de Salud del Adolescente , Femenino , Grupos Focales , Necesidades y Demandas de Servicios de Salud , Humanos , Masculino , Embarazo , Factores Socioeconómicos , SudáfricaRESUMEN
In a study of injection drug users (IDUs) in Tijuana, Mexico, logistic regression identified factors associated with injection of colored vs. clear methamphetamine in the prior six months (N = 613). Colors injected most often were clear (50%), white (47%), yellow (2%), and pink (1%). IDUs injecting colored meth were more likely to experience recent abscesses (34%) compared to those injecting clear meth (24%; p = 0.008), an association that persisted after adjusting for confounders. Market characteristics, possibly relating to purity or adulterants, may be associated with abscesses among methamphetamine injectors. Further study is needed to confirm and determine the mechanism of this association to better inform prevention messages.
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Absceso/epidemiología , Trastornos Relacionados con Anfetaminas/epidemiología , Estimulantes del Sistema Nervioso Central/toxicidad , Contaminación de Medicamentos/estadística & datos numéricos , Drogas Ilícitas/toxicidad , Metanfetamina/toxicidad , Enfermedades Cutáneas Bacterianas/epidemiología , Abuso de Sustancias por Vía Intravenosa/epidemiología , Absceso/etiología , Adulto , Estudios de Cohortes , Color , Comparación Transcultural , Estudios Transversales , Femenino , Encuestas Epidemiológicas , Humanos , Modelos Logísticos , Masculino , México , Estudios Prospectivos , Medición de Riesgo , Enfermedades Cutáneas Bacterianas/etiología , Factores Socioeconómicos , Estados UnidosRESUMEN
Sexual self-efficacy (SSE), one's perceived control of or confidence in the ability to perform a given sexual outcome, predicts sexual behavior; however, important questions remain regarding whether gender modifies observed associations. In a comprehensive review of peer-reviewed HIV-prevention literature focusing on youth (ages 10 to 25) in sub-Saharan Africa, we measured and assessed the influence of SSE on condom use and sexual refusal, overall and by gender. Our results, after reviewing 63 publications, show that SSE is inconsistently measured. Most studies measured condom use self-efficacy (CUSE) (96.8%) and/or sexual refusal self-efficacy (SRSE) (63.5%). On average, young men had higher CUSE than young women, while young women had higher SRSE than young men. While cross-sectional studies reported an association between high SSE and sexual behaviors, this association was not observed in interventions, particularly among young women who face a disproportionate risk of HIV acquisition. In all, 25% of intervention studies demonstrated that fostering CUSE increased condom use among young men only, and one of two studies demonstrated that higher SRSE led to reduced frequency of sexual activity for both men and women. Future research and HIV-prevention interventions must be gender targeted, consider improving CUSE for young men, and move beyond limited individual-level sexual behavior change frameworks.
Asunto(s)
Condones , Negociación , Sexo Seguro/etnología , Autoeficacia , Adolescente , Adulto , África del Sur del Sahara/etnología , Niño , Femenino , Humanos , Masculino , Adulto JovenRESUMEN
BACKGROUND: Young injection drug users (IDUs) may be at increased risk of premature mortality due to the health risks associated with injection drug use including overdoses and infections. However, there has been little research conducted on mortality causes, rates and associations among this population. We undertook this study to investigate patterns of premature mortality, prior to age 30 years, among young IDUs. METHODS: Since 1996, 572 young (< or = 29 years) IDUs have been enrolled in the Vancouver Injection Drug Users Study (VIDUS). Semi-annually, participants have completed an interviewer-administered questionnaire and have undergone serologic testing for HIV and hepatitis C (HCV). Mortality data have been continually updated through linkages with the Provincial Coroner's Office. Crude and age-specific mortality rates, standardized mortality ratios, and life expectancy measures were calculated using person-time methods. Predictors of mortality were identified using Cox regression analyses. FINDINGS: Twenty-two participants died prior to age 30 years during the follow-up period for an overall crude mortality rate of 1,368 per 100,000 person-years. Overall, young IDUs were 16.4 times (95% confidence interval [CI]; 9.1-27.1) more likely to die; young women IDUs were 54.1 times (95%CI; 29.6-90.8) and young men IDUs were 12.9 times (95%CI; 5.5, 25.3) more likely to die when compared to the Canadian non-IDU population of the same age. The leading observed cause of death among females was: homicide (N = 9); and among males: suicide (N = 3) and overdose (N = 3). In Cox regression analyses, factors associated with mortality were, HIV infection (Hazard Ratio [HR]: 4.55; CI: 1.92-10.80) and sex work (HR: 2.76; CI: 1.16-6.56). INTERPRETATION: Premature mortality was 13 and 54 times higher among young men and women who use injection drugs in Vancouver than among the general population in Canada. The majority of deaths among the women were attributable to homicide, suggesting that interventions should occur not only through harm reduction services but also through structural interventions at the legal and policy level.
RESUMEN
OBJECTIVE: The aim of this study was to observe the effect of sex on attaining optimal adherence to combination antiretroviral therapy (cART) longitudinally while controlling for known adherence confounders - IDU and ethnicity. DESIGN: Using the population-based HAART Observational Medical Evaluation and Research cohort, data were collected from HIV-positive adults, aged at least 19 years, receiving cART in British Columbia, Canada, with data collected between 2000 and 2014. cART adherence was assessed using pharmacy refill data. The proportion of participants reaching optimal (≥95%) adherence by sex was compared per 6-month period from initiation of therapy onward. Generalized linear mixed models with logistic regression examined the effect of sex on cART adherence. RESULTS: Among 4534 individuals followed for a median of 65.9 months (interquartile range: 37.0-103.2), 904 (19.9%) were women, 589 (13.0%) were Indigenous, and 1603 (35.4%) had a history of IDU. A significantly lower proportion of women relative to men were optimally adherent overall (57.0 vs. 77.1%; Pâ<â0.001) and in covariate analyses. In adjusted analyses, female sex remained independently associated with suboptimal adherence overall (adjusted odds ratio: 0.55; 95% confidence interval: 0.48-0.63). CONCLUSION: Women living with HIV had significantly lower cART adherence rates then men across a 14-year period overall, and by subgroup. Targeted research is required to identify barriers to adherence among women living with HIV to tailor women-centered HIV care and treatment support services.
Asunto(s)
Antirretrovirales/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Cumplimiento de la Medicación , Factores Sexuales , Colombia Británica , Utilización de Medicamentos , Femenino , Humanos , Estudios Longitudinales , MasculinoRESUMEN
BACKGROUND: Youth between the ages of 15 years to 24 years account for almost half of new HIV infections in South Africa. OBJECTIVES: To describe the study details of the Botsha Bophelo Adolescent Health Study (BBAHS) which was an investigation of HIV risk among adolescents living in Soweto, South Africa. METHODS: Eligibility criteria for the BBAHS included being 14 years - 19 years old and living in one of the 41 identified formal and informal areas in the township of Soweto. A cross-sectional survey was developed between investigators and an adolescent community advisory board consisting of previously validated scales and original questions including demographics, sexual and reproductive health, health service utilisation and psychosocial behaviours. RESULTS: Between 2010 and 2012, interviewers administered surveys among 830 adolescents (57% females), whose median age was 17 years (Q1, Q3: 16, 18), and found that 43% of participants identified their ethnicity as Zulu, 52% reported high food insecurity, 37% reported at least one parent had died, 15% reported living in a shack and 83% identified as heterosexual. Over half of the participants (55%) reported ever having sex (49% of females and 64% of males), 11% of whom initiated sex at < 15 years of age (3% females and 21% males). Almost half (47%) reported ever testing for HIV, 3% (n = 12) of whom self-reported being HIV-positive and 33% (n = 4) were on antiretroviral therapy. CONCLUSION: Our study highlights important individual, relational and structural level determinants of HIV risk for adolescent men and women growing up within HIV hyperendemic settings.
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Vacunas contra el SIDA/administración & dosificación , Ensayos Clínicos como Asunto/ética , Investigación Participativa Basada en la Comunidad/ética , Infecciones por VIH/prevención & control , Consentimiento Informado de Menores/ética , Selección de Paciente/ética , Prevención Primaria/ética , Asunción de Riesgos , Sexo Inseguro , Poblaciones Vulnerables , Vacunas contra el SIDA/efectos adversos , Adolescente , Ensayos Clínicos como Asunto/métodos , Investigación Participativa Basada en la Comunidad/métodos , Ética en Investigación , Infecciones por VIH/transmisión , Humanos , Experimentación Humana no Terapéutica/ética , Prevención Primaria/métodos , Riesgo , SudáfricaRESUMEN
OBJECTIVES: Recent reports have suggested that Aboriginal and American Indian people are at elevated risk of HIV infection. We undertook the present study to compare socio-demographic and risk variables between Aboriginal and non-Aboriginal young (aged 13 - 24 years) injection drug users (IDUs) and characterize the burden of HIV infection among young Aboriginal IDUs. METHODS: We compared socio-demographic and risk variables between Aboriginal and non-Aboriginal young IDUs. Data were collected through the Vancouver Injection Drug Users Study (VIDUS). Semi-annually, participants have completed an interviewer-administered questionnaire and have undergone serologic testing for HIV and Hepatitis C (HCV). RESULTS: To date over 1500 Vancouver IDU have been enrolled and followed, among whom 291 were aged 24 years and younger. Of the 291 young injectors, 80 (27%) were Aboriginal. In comparison to non-Aboriginal youth, Aboriginal youth were more likely to test seropositive for either HIV (20% vs 7%, p=< 0.001) or Hepatitis C virus (HCV) (66% vs 38%, p =< 0.001), be involved in sex work and live in the city's IDU epi-centre at baseline. After 48 months of follow-up, Aboriginal youth experienced significantly higher HIV seroconversion rates than non-Aboriginal youth, 27.8 per ppy (95% CI: 13.4-42.2) vs. 7.0 per ppy (95% CI: 2.3-11.8) respectively (log-rank p = 0.005) and the incidence density over the entire follow-up period was 12.6 per 100 pyrs (CI: 6.49-21.96) and 3.9 per 100 pyrs (CI: 1.8-7.3) respectively. INTERPRETATION: These findings demonstrate that culturally relevant, evidence based prevention programs are urgently required to prevent HIV infection among Aboriginal youth.
RESUMEN
BACKGROUND: The identification of individuals at the highest risk of human immunodeficiency virus (HIV) infection is critical for targeting prevention strategies. We evaluated self-perceived risk of HIV infection and rates of subsequent HIV seroconversion among a prospective cohort study of injection drug users (IDUs). METHODS: We performed an analysis of the time to HIV infection among 994 baseline HIV negative IDUs enrolled in the Vancouver injection drug users study (VIDUS). IDUs were stratified based on their baseline self-perceived risk of HIV seroconversion (higher than others vs same or lower). Kaplan-Meier methods were used to estimate cumulative HIV incidence rates and Cox regression was used to determine adjusted relative hazards for HIV seroconversion. RESULTS: At the end of 24 months after enrolment into the cohort, the cumulative HIV incidence rate was significantly elevated among the 5.9% of the sample who perceived their risk for HIV infection to be higher at baseline (26.6% vs 7.8% log-rank P < 0.001). In a Cox model that adjusted for all variables that were associated with the time to HIV infection in univariate analyses, a higher baseline self-perceived risk of acquiring HIV infection (relative hazard RH: 2.48 [95% Confidence interval (CI): 1.51, 4.10]; P = 0.004) remained independently associated with time to HIV seroconversion. CONCLUSIONS: IDUs' perception of their risk for HIV seroconversion upon enrolment into a prospective cohort study was strongly and independently associated with the subsequent rate of HIV seroconversion. Since this risk marker remained independently associated with HIV seroconversion, even after adjustment for time-updated risk behaviours, our findings have major implications that may aid outreach workers in their efforts to identify IDUs who should be targeted with prevention efforts.
Asunto(s)
Seropositividad para VIH/epidemiología , Asunción de Riesgos , Abuso de Sustancias por Vía Intravenosa/complicaciones , Adulto , Actitud Frente a la Salud , Colombia Británica/epidemiología , Métodos Epidemiológicos , Femenino , Infecciones por VIH/prevención & control , Seropositividad para VIH/psicología , Seropositividad para VIH/transmisión , Humanos , Masculino , Selección de Paciente , Abuso de Sustancias por Vía Intravenosa/psicologíaRESUMEN
This paper is a call to action. We present Kaplan Meier cumulative HIV and HCV incidence rates among youth aged < or = 24 participating in the Vancouver Injection Drug Users Study (VIDUS), and demonstrate the alarming increase in HIV and HCV incidence rates in addicted youth. The incidence rates among VIDUS youth were 11.1% for HIV and 52.1% for HCV at 36 months after enrollment in the study. The growing epidemic of HIV and HCV among addicted youth calls for policy-makers and program planners to concentrate resources into prevention and treatment of blood-borne infections among British Columbia's vulnerable youth. Without focussing such resources, further HIV and HCV infections and subsequent higher health care costs appear imminent.
Asunto(s)
Brotes de Enfermedades/estadística & datos numéricos , Infecciones por VIH/epidemiología , Hepatitis C/epidemiología , Salud Pública/estadística & datos numéricos , Abuso de Sustancias por Vía Intravenosa/epidemiología , Adulto , Colombia Británica/epidemiología , Femenino , Infecciones por VIH/etiología , Hepatitis C/etiología , Personas con Mala Vivienda , Humanos , Incidencia , Masculino , Abuso de Sustancias por Vía Intravenosa/complicaciones , Población UrbanaRESUMEN
BACKGROUND: Adolescents are an important age-group for preventing disease and supporting health yet little is known about their health-seeking behaviours. OBJECTIVE: We describe socio-demographic characteristics and health-seeking behaviours of adolescents in Soweto, South Africa, in order to broaden our understanding of their health needs. DESIGN: The Botsha Bophelo Adolescent Health Study was an interviewer-administered cross-sectional survey of 830 adolescents (14-19 years) conducted in Soweto from 2010 to 2012. Health-seeking behaviours were defined as accessing medical services and/or being hospitalised in the 6 months prior to the survey. Chi-square analysis tested for associations between gender, other socio-demographic and behavioural characteristics, and health-seeking behaviours. RESULTS: Of 830 adolescents, 57% were female, 50% were aged 17-19 years, 85% were enrolled in school, and 78% reported experiencing medium or high food insecurity. Males were more likely than females to report sexual debut (64% vs. 49%; p<0.0001) and illicit drug use (11% vs. 3%; p<0.0001). Approximately 27% (n=224) and 8% (n=65) reported seeking healthcare or being hospitalised respectively in the previous 6 months, with no significant differences by gender. Services were most commonly sought at medical clinics (75%), predominantly because of flu-like symptoms (32%), followed by concerns about HIV (10%). Compared to females, males were more likely to seek healthcare for condom breakage (8% vs. 2%; p=0.02). Relative to males, a significantly higher proportion of females desired general healthcare services (85% vs. 78%; p=0.0091), counselling (82% vs. 70%; p<0.0001), and reproductive health services (64% vs. 56%; p=0.02). CONCLUSIONS: A quarter of male and female adolescents accessed health services in the 6 months prior to the interview. Adolescents reported a gap between the availability and the need for general, reproductive, and counselling services. Integrated adolescent-friendly, school-based health services are recommended to bridge this gap.