Importance Few studies have examined how different proportions of moderate and vigorous
physical activity affect health outcomes. Objective To examine whether the proportion of total …

Background Early life is suggested to be a critical time in determining subsequent asthma
development, but the extent to which the effect of early-life exposure to ambient air pollution …

VITAMIN D Vitamin D is a fat soluble vitamin ingested from the diet and dietary supplements,
but the main source of vitamin D is solar radiation of the skin which transforms 7 …

STUDY QUESTION What is the effect of maternal exposure to perfluorooctane sulfonate
(PFOS), perflurooctanoic acid (PFOA) and perfluorohexane sulfonate (PFHxS) on female …

Background We launched the B oston U niversity P regnancy S tudy O nline (PRESTO) to
assess the feasibility of carrying out an I nternet‐based preconception cohort study in the US …

The aim of this study was to examine the impact of a maternal history of abuse on mother–
infant interaction (emotional availability; EA) in infancy and early toddlerhood. Over an 18 …

Objective To assess incidence, prevalence, risk factors, and prognosis of peripartum
depression and anxiety in a prospective study of women with epilepsy. Method Pregnancies …

Child psychiatric epidemiology has developed rapidly from descriptive, cross-sectional
studies in the 1960s to the current large-scale prospective cohorts that unravel aetiological …

Aims To describe the incidence of type 2 diabetes mellitus (T2DM) among middle-aged and
older Australian adults and to examine a broad range of risk factors of T2DM. Methods A …

Purpose The intrauterine environment, including maternal nutrition status, may affect the
development, formation, and mineralization of children's teeth. We assessed the relationship …