Skip to main content
. Author manuscript; available in PMC: 2014 Apr 29.
Published in final edited form as: Am J Prev Med. 2010 May;38(5):491–498. doi: 10.1016/j.amepre.2010.01.023

Table 1.

Sample characteristics by respondent gender—weighted percentages unless otherwise indicated

Sample
(n=8721)		 Men/boys
(n=3814)		 Women/girls
(n=4457)
Wave-1 age (years; M [SE]) 14.4 (0.12) 14.5 (0.12) 14.3 (0.12)
  ≤12 14.1 13.3 14.9
  13–15 58.8 57.8 59.8
  16–17 25.2 26.3 24.0
  ≥18 1.9 2.6 1.3
Race/ethnicity
  Black (non-Hispanic) 15.6 14.5 16.6
  Hispanic 10.1 10.2 10.0
  White (non-Hispanic) 69.6 70.2 69.1
  Other 4.7 5.1 4.3
Sports involvement (M [SE]) 1.25 (0.05) 1.38 (0.05) 1.12 (0.04)
Any academic activity 33.6 26.9 40.1
Any music activity 25.8 18.3 33.0
Parental monitoring (M [SE]) 5.37 (0.10) 5.38 (0.10) 5.37 (0.10)
Friends drinking (M [SE]) 1.10 (0.05) 1.15 (0.05) 1.05 (0.04)
Parental alcoholism 15.9 14.7 17.0