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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: J Adolesc Health. 2013 Nov 10;54(3):333–340. doi: 10.1016/j.jadohealth.2013.09.002

Table 1.

Sample Characteristics For the Longitudinal Subsample (Control Variables), by Gender

Time-invariant covariates (n = 1,494)
Males (n = 743)
% (n)
Females (n = 751)
% (n)
Started SSLS in Middle School (ref. group)
Ages ranged between 11 and 14 (M=12.7)
53.1% (395) 53.4% (401)
Started SSLS in High School
Ages ranged between 13 and 17 (M=14.8)
46.9% (348) 46.6% (350)
Parents have some (ref. group) college or less 17.8% (132) 14.9% (112)
Parents have a college degree or higher 82.2% (611) 85.1% (639)
White (ref. group) 73.8% (548) 67.7% (508)
Non-White 26.2% (195) 32.2% (243)
Did Not Participate in Organized Sports Across the Three Waves (ref. group) 35.8% (266) 38.5% (289)
Participated in Organized Sports During One Wave 17.3% (129) 22.5% (169)
Participated in Organized Sports During Two Waves 21.1% (157) 21.1% (158)
Participated in Organized Sports During All Three Waves (continual sports participants) 25.8% (191) 17.9% (135)
Time-varying covariates (n = 1,494)
Wave 1 Wave 2 Wave 3
Males (n = 743)
% (n)
Females (n = 751)
% (n)
Males (n = 743)
% (n)
Females (n = 751)
% (n)
Males (n = 743)
% (n)
Females (n = 751)
% (n)
Positive DAST-10 screening 1.8% (13) 2.1% (16) 6.0% (45) 5.7% (43) 7.6% (56) 8.4% (63)
Participated in Organized Sports 47.8% (355) 40.0% (300) 45.8% (340) 42.5% (319) 43.2% (321) 35.9% (270)