OBJECTIVE Several studies have reported that ethnic differences influence psychiatric diagnoses. Some previous studies reported that African Americans and Hispanics are diagnosed with schizophrenia spectrum disorders more frequently than Caucasians, and that Caucasians are more likely to be diagnosed with affective disorders than other ethnic groups. We sought to identify associations between s...

The importance of sociodemographic factors and tumor biomarkers in explaining ethnic differences in tumor stage and size at diagnosis was investigated in over 106,000 female breast cancer patients reported during 1992–1996 from 11 US population-based cancer registries. Japanese and non-Hispanic White women tended to be diagnosed at an earlier stage, with smaller diameter tumors and with a lower...

First-time adolescent mothers are at high risk for a repeat pregnancy. The present investigation, part of an ongoing longitudinal study, examined sociodemographic, family, and health factors associated with repeat Pregnancy in a clinic sample of urban, first-time adolescent mothers (ages 13 to 17 years). They were predominantly African-American and from low-income households. Repeat pregnancy w...

OBJECTIVE To estimate the physical activity level among Mexican adults and to establish the sociodemographic variables that may be linked to active lifestyles. DESIGN Data from a cross-sectional survey were analysed. Physical activity was assessed using the short version of the International Physical Activity Questionnaire. The independent variables were sex, age, socio-economic status and si...

Recent research has implicated infant sleeping body position and bed sharing as risk factors in the sudden infant death syndrome. The sociodemographic associations of infant sleeping body position and location were examined in this study. This showed that the majority (86.4%) of New Zealand parents now place their infants to sleep on their sides. The remainder place their infants supine (1.3%),...