Prevalence of Parental Death
Weighted prevalence of any parental death was 27.3% overall: 22.4% reported their father deceased, 7.9% reported their mother deceased, and 3.0% reported both parents deceased. For those paternally bereaved individuals, their fathers died, on average, 8.6 years ago (median = 6.0 years, SD = 6.8) when the participants were, on average, 10.7 years old (median = 12.0 years old, SD = 7.0). For those maternally bereaved individuals, their mothers died, on average, 6.6 years ago (median = 6.0 years, SD = 5.70) when participants were 12.6 years old (median = 13.0 years old, SD = 5.7).
Characteristics Associated With Parental Death
Table 1 shows descriptive associations between sociodemographic characteristics and parental death. Compared with those with both parents living, young people who experienced any parental death disproportionately were older than 18 years of age; black; lived in KwaZulu-Natal, Eastern Cape, and Free State provinces; inhabited rural informal areas; lived in dwellings made of traditional material, such as mud, or in shacks; lacked electricity; lived without any adult caretaker; and had not completed the ninth grade compulsory education level. Sociodemographic correlates of paternal death and dual parental death were identical to the patterns observed for any parental death (see Table 1). Sociodemographic correlates of maternal death were slightly different: geographic area type (ie, living in rural informal areas) and dwelling type (ie, living in dwelling made of traditional material or in shacks) were not associated with maternal death.
Parental Death, HIV Status, and Sexual Behaviors
In the overall sample, parental death was significantly associated with HIV-positive status (adjusted odds ratio [AOR] = 1.19, 95% confidence interval [CI]: 1.05 to 1.36), ever having had vaginal sex (AOR = 1.21, 95% CI: 1.09 to 1.34), and unprotected sex at the last sexual episode (AOR = 1.11, 95% CI: 1.00 to 1.22). Parental death was marginally associated with ever having had oral sex (AOR = 1.12, 95% CI: 0.98 to 1.29) and having more than 1 sex partner during the past year (AOR = 1.12, 95% CI: 0.99 to 1.27). There were no observed associations in the overall sample between parental death and STIs during the past year, anal sex, consistent condom use during the past year, forced sex, or transactional sex.
Table 2 shows associations between parental death, HIV status, and sexual behaviors separately for female and male participants. Parental death among female participants was significantly associated with HIV-positive status, ever having had oral sex, ever having had vaginal sex, and having more than 1 sex partner during the past year. Among male participants, parental death was significantly associated with ever having had vaginal sex and having unprotected sex at the last sexual episode.
In this nationally representative sample of 15- to 24-year-olds from all 9 provinces of South Africa, more than one fourth of the population had experienced parental death and parental death was associated with HIV status among female participants and with sexual behaviors among female and male participants. The prevalence of parental death in this sample corresponds to prior findings. An analysis of probability samples from 40 sub-Saharan African countries, based on data from the multiple indicator cluster surveys (MICS) and the demographic and health surveys (DHS), estimated that 9% of children younger than the age of 15 years had experienced the death of a parent and that 1% had experienced the deaths of both parents.13 The South African DHS subsample, collected in 1998, indicated that 9.7% of children <15 years of age had experienced parental death: 7.6% reported paternal death, 1.4% reported maternal death, and 0.8% reported both parents deceased.13 Our analyses extended this age range into young adulthood and arrived at a similar patterns of parental loss, with paternal death much more common than maternal death. Parental death prevalence levels were higher in our data, which was partially attributable to the older age range in our sample but may also be attributable to increasing mortality. Another study calculated statistical models based on recent female mortality and maternal fertility rates, however, and estimated that 30% of 15- to 17-year-olds in South Africa had experienced maternal death as of 2001.22 It is unclear as to why our estimates of maternal death are different, but this might be attributable to the assumptions made about fertility and maternal mortality input into the mathematic models and limitations in our household sampling method, which did not include young people living on the street or in institutions.
The association found here between parental death and HIV status indicates that loss of 1 or both parents may potentially pose an independent risk for HIV infection among young female South Africans. This association could not be entirely accounted for by the adverse socioeconomic indicators or age, because these factors were controlled for statistically. Although it is possible that some of these HIV-positive young South Africans might have been infected through perinatal transmission or infected breast milk,23 these routes are not likely to explain most cases. Other research has indicated that the median survival age of children infected perinatally is 2 years, and that the median survival age is 6 years for those infected through breast milk;22 age ranges in our study far exceeded these survival estimates. Moreover, our sample was born in a period during which antiretroviral treatments, if available at all, were accessible to only a few South Africans. Therefore, it is likely that HIV-positive young South Africans who experienced parental death in our sample were infected through sexual transmission. Indeed, we found that young people who experienced parental death were also more likely to have engaged in behaviors that are linked with HIV transmission, including multiple sex partners among female participants and recent unprotected sex among male participants. The specific mechanisms by which parental death contributes to unsafe sexual behaviors and HIV infection remain to be determined.
There are several limitations to this study. First, because of AIDS-related stigma and cultural norms discouraging discussion of sex in South Africa, participants may have underreported sexual behaviors. Second, cause of parental death in this sample is unknown; thus, inferences about levels of parental loss attributed directly to AIDS cannot be made. Third, because of the disruption of nuclear family units in South Africa, which is attributable to migration and forced dislocation, rising mortality, and structural violence, many young South Africans do not know both biologic parents; hence, their reports on parental mortality might actually reference other kin caregivers or foster caregivers. Fourth, because of high rates of the absence of fathers in South Africa, some young people might have misattributed the absence of their father to paternal death. Fifth, because of the cross-sectional nature of the data, statements of causality or temporal order among variables cannot be made. Sixth, because of the household sampling method used, these data excluded young people who lived on the street or in nonhousehold settings such as hospitals or prisons. These groups may be particularly vulnerable. Finally, child-headed homes were not included in the survey, which might contribute to underestimating the prevalence of South African children who lack adult caregivers.
Several strengths of the study should be emphasized. This is the first known study of this size conducted in South Africa to examine associations of parental death with HIV risk. The use of nationally representative sampling minimizes some of the biases associated with convenience- or venue-based sampling approaches. Our inclusion of older adolescents and young adults (15-24 years old) provides an important social epidemiologic risk profile of young people who are commonly excluded from studies on childhood orphans. Focusing on young people between the ages of 15 and 24 years offers important insight into the health, prevention, and treatment needs of the next generation of South African adults. Furthermore, use of serologic testing in this study allows reliable estimates of HIV prevalence in this sample.
Future research is necessary to understand the social and behavioral mechanisms of action through which experience of parental death leads to HIV risk in young people. For example, age at first sex, sex partner characteristics, intimate relationship dynamics, contraception methods, access to health care and reproductive counseling, and other detailed aspects of sexual history may help to explain why young female South Africans who have experienced parental death face more substantial risk for HIV. Moreover, gender effects should be examined further in future studies, including possible gender differences in the social and economic sequelae of parental death, whether loss of a mother or father differentially is associated with risk, and whether maternal versus paternal death affects adolescent boys and girls in different ways.24,25 In addition, factors that may offer protection against negative health outcomes, such as HIV, for young people who have experienced parental death should also be explored. This may include the role of guardians and alternative parental figures, community support systems, siblings and other family members, and access to educational interventions. Qualitative methods can also be useful in understanding the first-person experiences, including HIV risk and protective factors, of young South Africans who have lost a parent. Guided by further insight into the causal risks for infection among these young people, intervention research can address those specific risks.
The findings presented here reinforce the urgent need for AIDS-related policy and interventions for South African young people. Fundamentally, these data reveal a large proportion of the South African population entering adulthood without living parental figures. Intervening with this group can potentially have lasting changes on further HIV transmission rates and on the population's general health, mortality, education, and economic outcomes. This group is mostly black, poor, and living in disadvantaged areas, and they face increased risk for being HIV-positive, particularly young female South Africans. These are especially relevant findings in the context of current debate in sub-Saharan Africa concerning the necessity of specific provisions for individuals who have experienced the death of a parent attributable to AIDS-related causes.26 There is a clear necessity to reduce the magnitude and consequences of parental death attributable to AIDS and other illness for the current and future generations of young South Africans.
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Keywords:© 2007 Lippincott Williams & Wilkins, Inc.
HIV; parental death; sexual behavior; South Africa; young people