Recent Changes in Pubertal Timing in Healthy Danish Boys: Associations with Body Mass Index

In the 1990s, the American population-based study NHANES III renewed the focus on possible secular trends in male puberty. However, no conclusions could be made on pubertal onset due to the lack of compatible data.The aim of the study was to evaluate secular trends in pubertal onset during the recent 15 yr and their relation to body mass index (BMI) in boys.We conducted a cross-sectional study in 1991-1993 and a combined cross-sectional and...