The present study included 38,987 participants in the
Cohort of Swedish Men. The cohort recruitment process,
characteristics, and study methods have been previously
published.7 Men aged 45 to 79 years in Västmanland and
Örebro counties in central Sweden were sent self-administered
questionnaires on demographics, weight, height, and
intake of foods and beverages in late 1997 and early 1998,
and 48,850 responded.