REPRINT OF: Racism, Sexism, and Social Class: Implications for Studies of Health, Disease, and Well-being.

Editor's Note: This article is a reprint of a previously published article. For citation purposes, please use the original publication details: Krieger N, Rowley DL, Herman AA, Avery B, Phillips MT. Racism, sexism, and social class: implications for studies of health, disease, and well-being. Am J Prev Med. 1993;9(6 suppl):82-122.

Prenatal care reduces the impact of illicit drug use on perinatal outcomes.

OBJECTIVE: To estimate the extent that prenatal care (PNC) retains its protective influence against prematurity, low birth weight (LBW), and small for gestational age (SGA) status in infants exposed to illicit drug use (IDU) in pregnancy. STUDY DESIGN: This was a prospective cohort analysis including 6673 women residents of the District of Columbia (Washington, DC, USA) delivering at four city hospitals. Women were screened in the immediate postpartum period. Levels of PNC were established according to American College of Obstetrics and Gynecology guidelines and the Kotelchuck index. PNC and IDU were compared between subgroups. Adjusted relative risks for prematurity, LBW and SGA, controlling for maternal and gestational ages, were calculated in different groups according to IDU and level of PNC. RESULTS: IDU was identified in 13% of mothers screened. PNC was classified as none (6%), inadequate (10%), intermediate (20%), and adequate (64%). The highest risk for prematurity, LBW, or SGA occurred in infants born to mothers with no PNC and positive IDU in pregnancy (prematurity OR=12.05, 95% CI: 8.99 to 16.16; LBW OR=14.76, 95% CI: 11.03 to 19.75; SGA OR=9.20, 95% CI: 5.32 to 15.92). As PNC levels increased, significant reductions in risk for prematurity and LBW (not for SGA) in IDU-exposed infants were observed. Risk for SGA in IDU-exposed infants reduced significantly when PNC was introduced. CONCLUSIONS: In infants exposed to IDU, a reduction in risk for prematurity, LBW, and SGA, was consistently demonstrated with improved levels of PNC. In high-risk populations, health care should seek to reach mothers early, especially those identified at risk for IDU, and deliver PNC to them effectively.

Community health workers and integrated primary health care teams in the 21st century.

Community health workers are an integral part of many healthcare systems. Their roles vary and include both the socially oriented tasks of natural helpers and specific constrained tasks of health extenders. As natural helpers, community health workers play an important role in connecting public and primary care to the communities that they serve. As primary health care becomes more patient-centered and community-oriented, the natural helper roles that include trust, rapport, understanding, and the ability to communicate with the community take on an increased significance. Community health workers are effective and make the health care system more efficient. In some states, the community health worker has become a more formal member of the integrated primary health care team, and it is in this role that she or he provides structured linkages between the community, the patient, and the health care system. The effective community health workers are strongly embedded in the communities that they serve; they have clear supervision within the health care system; they have clearly defined roles in the health care system; and they are well trained and have a defined system of advancing their education and roles within the health care system.

The South African Stress and Health (SASH) study: 12-month and lifetime prevalence of common mental disorders.

BACKGROUND: The South African Stress and Health (SASH) study is the first large-scale population-based study of common mental disorders in the country. This paper provides data on the 12-month and lifetime prevalence of these conditions. METHODS: Data from a nationally representative sample of 4351 adults were analysed. Mental disorders were assessed with the Composite International Diagnostic Interview (CIDI). An extensive survey questionnaire detailed contextual and socio-demographic factors, onset and course of mental disorders, and risk factors. Simple weighted cross-tabulation methods were used to estimate prevalence, and logistic regression analysis was used to study correlates of 12-month and lifetime prevalence. RESULTS: The lifetime prevalence for any disorder was 30.3%, and the most prevalent 12-month and lifetime disorders were the anxiety disorders. The Western Cape had the highest 12-month and lifetime prevalence rates, and the lowest rates were in the Northern Cape. CONCLUSIONS: The SASH study shows relatively high 12-month and lifetime prevalence rates. These findings have significant implications for planning mentalhealth services.

Impact of common mental disorders during childhood and adolescence on secondary school completion.

There are few data from South Africa and other low- and middle-income countries on how mental disorders in childhood and adolescence may influence different aspects of socio-economic position, including educational attainment. We examined the association between early-onset disorders and subsequent educational achievement in a nationally representative sample of 4 351 South African adults. After adjusting for participant demographic characteristics and traumatic life events, post-traumatic stress disorder, major depressive disorder and substance-related disorders were each associated with increased odds of failing to complete secondary education (odds ratios and 95% confidence intervals 2.3, 1.0-5.1; 1.7, 1.2-2.5, and 1.7, 1.2-2.5, respectively). These data point to the role that early-life mental disorders may play in educational achievement and subsequent socio-economic position over the life course.

Mental health service use among South Africans for mood, anxiety and substance use disorders.

BACKGROUND: Europe and North America have low rates of mental health service use despite high rates of mental disorder. Little is known about mental health service use among South Africans. DESIGN: A nationally representative survey of 4351 adults. Twelve-month DSM-IV (Diagnostic and Statistical Manual, 4th edition) diagnoses, severity, and service utilisation were determined using the World Health Organization Composite International Diagnostic Interview (CIDI). Twelve-month treatment was categorised by sector and province. South Africans in households and hostel quarters were interviewed between 2002 and 2004 in all nine provinces. OUTCOME MEASURES: 4 317 respondents 18 years and older were analysed. Bivariate logistic regression models predicted (i) 12-month treatment use of service sectors by gender, and (ii) 12-month treatment use by race by gender. RESULTS: Of respondents with a mental disorder, 25.2% had sought treatment within the previous 12 months; 5.7% had used any formal mental health service. Mental health service use was highest for adults with mood and anxiety disorders, and among those with a mental disorder it varied by province, from 11.4% (Western Cape) to 2.2% (Mpumalanga). More women received treatment, and this was largely attributable to higher rates of treatment in women with mood disorders. Age, income, education and marital status were not significantly associated with mental health service use. Race was associated with the treatment sector accessed in those with a mental disorder. CONCLUSIONS: There is a substantial burden of untreated mental disorders in the South African population, across all provinces and even in those with substantial impairment. Greater allocation of resources to mental health services and more community awareness initiatives are needed to address the unmet need.

The effect of a parenting education program on the use of preventive pediatric health care services among low-income, minority mothers: a randomized, controlled study.

OBJECTIVE: To determine if a community-based intervention program focusing on parenting education will have an impact on preventive health care utilization behaviors among low-income, minority mothers in Washington, DC. DESIGN: The experimental design was a randomized, controlled study in which 286 mother-infant dyads were assigned to either the standard social services (control) group or to the intervention group. Women and their newborn infants were recruited during the immediate postpartum period in 4 Washington, DC, hospital sites from April 1995 to April 1997. The year-long multicomponent intervention included home visits and hospital-based group sessions in addition to the standard social services available at the hospital sites. A total of 286 postpartum women with inadequate prenatal care were assigned randomly to the control or the intervention group. Women and their infants were followed for 1 full year. Outcome measures included usage of preventive health care services including well care infant visits and adherence to immunization schedules during the first year of the infant's life. RESULTS: Infants in the intervention group initiated well care at an earlier age than controls (by 6 weeks, 62.5% vs 50% had received their first well infant visit). Infants in the intervention group had more frequent well visits (by 12 months of age, 3.5 vs 2.7 visits). Multivariate analyses showed infants in the intervention group to be more likely to complete their scheduled immunizations (by 9 months, odds ratio = 2.2, 95% confidence interval: 1.09-4.53). Those in the intervention group with more frequent contacts (30+ visits) with study personnel were most likely to have followed age-appropriate immunization schedules when compared with controls (at 9 months odds ratio = 3.63, 95% confidence interval: 1.58-8.33). CONCLUSIONS: It is possible to influence health care usage patterns of high-risk minority populations through public health interventions that are global in their perspective. Focusing on parental knowledge and beliefs regarding health-related issues and life skills in a self-efficacy model is associated with improved usage of infant health care resources.