Long-Term Exposure to Road Traffic Noise and Incident Diabetes: A Cohort Study

摘要

Study population. The study was based on the Danish Diet, Cancer and Health cohort (Tj?nneland et al. 2007). In total, 57,053 of 160,725 residents of Copenhagen or Aarhus who were 50-64 years of age without a history of cancer were enrolled into the cohort between 1993 and 1997. Participants had to have been born in Denmark. At enrollment, each participant completed self-administered, interviewer-checked questionnaires covering food intake, lifestyle habits including detailed information on present and previous smoking and physical activity, health status, and social factors. Height, weight, and waist circumference were measured by trained staff members according to standardized protocols. The study was conducted in accordance with the Helsinki Declaration and approved by the local ethical committees (Copenhagen and Frederiksberg), and all participants provided written informed consent.