. Author manuscript; available in PMC: 2017 Mar 1.

Published in final edited form as: Am J Prev Med. 2015 Nov 2;50(3):295–302. doi: 10.1016/j.amepre.2015.08.034

Table 1.

Demographic Characteristics for First-Year Students on Intervention and Comparison Campuses

Demographic characteristics	Campus condition		X² _df ^p^{-value two tail} Comparing demographic characteristics by condition
Demographic characteristics	Intervention n=2,979	Comparison n=4,132
Female	63.8%	60.9%	5.94 _df=1^p^=0.01
Non-White	14.2%	13.7%	0.39 _df=1^p^=NS
In a romantic or dating relationship in the past 12 months	60.6%	60.1%	0.19 _df=1 ^p^=NS
Sexual attraction: not exclusively attracted to the opposite sex	10.5%	12.5%	6.99 _df=1 ^p^=0.01
Currently in a Fraternity or Sorority	20.9%	16.0%	27.90 _df=1^p^<0.0001
Age:			7.64 _df=2 ^p^=0.02
18	31.0%	28.6%
19	59.5%	60.4%
≥ 20	9.5%	11.0%
Year survey conducted (spring term)^a			97.44 _df=3 ^p^<0.0001
2010	25.2%	26.8%
2011	43.9%	40.0%
2012	14.6%	22.2%
2013	16.3%	11.0%

Indicates the proportion of all students across four years who completed a survey by I and C campus.

Note: Boldface indicates statistical significance (p<0.05).