Aims/hypothesis To estimate the prevalence of undiagnosed diabetes mellitus, impaired
glucose tolerance (IGT) and impaired fasting glucose (IFG), and their relations with …

The purpose of this paper is to examine personal and health factors, both at the beginning of
the study and thereafter, associated with participation in the GAZEL cohort, set up in 1989 in …

Background: Twin and family studies that estimated the heritability of daily physical activity
have been limited by poor measurement quality and a small sample size. Objective: We …

Background: Declining response rates pose a serious threat to the validity of estimates
derived from epidemiological studies. If respondents and non-respondents differ …

BACKGROUND: The aim of the research was to study the determinants of participation in a
health examination survey (HES) which was carried out in a population that previously …

Public health agencies often require data that address the needs of special populations,
such as minority groups. Sources of surveillance data often contain insufficient numbers of …

Study objective: To assess the representativeness of survey participants by systematically
comparing volunteers in a national health and sexuality survey with the Australian …

This was a cross‐sectional study of stress in a stratified, random sample of New Zealand
farmers (n= 1015). Data were obtained on farming‐specific environmental stressors …

Background Evaluating the interrelationship of health behaviors could assist in the
development of effective public health interventions. Furthermore, the ability to identify …

Objectives: To develop strategies to recruit and retain inactive older adults into a physical
activity program. Methods: Names of 7378 older adults were obtained from 60 …