QUESTION UNDER STUDY To determine whether first alcohol intoxication before the age of 15 is associated with risky drinking patterns [Weekly Risky Drinking (WRD) and Binge Drinking (BD)], tobacco use, cannabis use at age 20 and other illicit substance use at somepoint within their lifetime. METHODS A survey was conducted among 20-year-old French-speaking Swiss men attending the mandatory army...

studies suggest that children who start solid foods early are at risk for developing food allergies. herein, we evaluated the effects of the introduction of peanuts to the diets of children on emerging peanut allergies. children with allergic rhinitis and asthma were enrolled in the present study and evaluated in four stages. in the first stage, a clinical history was completed for all particip...

the mean age at natural menopause and its determinants among shirazi women (southern iran) was calculated.  the data were obtained from a population- based cross-sectional study carried out in the year 2000.  interviews were carried out and observations made on 948 women who had incurred natural menopause. they were randomly chosen using postal zones housing sample framework of shiraz. mean±sd ...

OBJECTIVE Younger age at menarche (AAM) may put girls at risk for earlier first sexual intercourse (FSI). Young age at FSI has far-reaching negative outcomes. We describe the longitudinal relationship between AAM and FSI in a large prospective birth cohort. METHODS AAM was collected from 554 girls from the Western Australia (Raine) Pregnancy Cohort Study, prospectively from age 10 or retrospe...

OBJECTIVE To identify reporting biases and to determine the influence of inconsistent reporting on observed trends in the timing of age at first sex and age at marriage. METHODS Longitudinal data from three rounds of a population-based cohort in eastern Zimbabwe were analysed. Reports of age at first sex and age at marriage from 6837 individuals attending multiple rounds were classified accor...