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. Author manuscript; available in PMC: 2012 Jun 5.
Published in final edited form as: J Drug Educ. 2009;39(4):339–359. doi: 10.2190/DE.39.4.a

Table 1.

Characteristics of study sample by study condition and gender (N=830*)

Study Condition
Characteristic Single gender Mixed gender Control χ 2 p-value
Females (n=452) n=158 n=147 n=147
Age 3.126 .537
  17 years 42 (26.6%) 40 (27.2%) 37 (25.2%)
  18 years 102 (64.6%) 101 (68.7%) 101 (68.7%)
  19+ years 14 (8.9%) 6 (4.1%) 9 (6.1%)
First-semester Freshman 1.937 .380
  Yes 144 (91.1%) 133 (91.5%) 139 (94.6%)
Race/Ethnicity 18.483 .018
  Hispanic/Latino 10 (6.3%) 6 (4.1%) 16 (10.9%)
  Asian/Pacific Islander 21 (13.3%) 23 (15.7%) 25 (17%)
  Black/African American 28 (17.7%) 35 (23.8%) 14 (9.5%)
  White 91 (57.6%) 71 (48.3%) 77 (52.4%)
  Other/Mixed 8 (5.1%) 12 (8.2%) 15 (10.2%)
Living-Learning Member .075 .963
  Yes 97 (61.4%) 89 (60.5%) 88 (59.9%)
Participated in Workshop #1 31 (19.6%) 27 (18.4%) NA .093 .760
Participated in Workshop #2 20 (12.7%) 34 (23.1%) NA 5.611 .018
Participated in Workshop #3 23 (14.5%) 43 (29.3%) NA 9.523 .002
Participated in ≥1 workshop 57 (36.1%) 76 (51.7%) NA 7.311 .007
Participated in 2 workshops 12 (7.6%) 26 (17.7%) NA 7.111 .008
Participated in 3 workshops 2 (1.3%) 1 (.7%) NA .268 .605
Males (n=378) n=126 n=120 n=132
Age 2.82 .588
  17 years 37 (29.4%) 27 (22.5%) 29 (22%)
  18 years 78 (61.9%) 84 (70%) 90 (68.2%)
  19+ years 11 (8.7%) 9 (7.5%) 13 (9.6%)
First-semester Freshman .192 .908
  Yes 115 (91.3%) 110 (91.7%) 119 (90.1%)
Race/Ethnicity 10.757 .216
  Hispanic/Latino 8 (6.3%) 10 (8.3%) 6 (4.5%)
  Asian/Pacific Islander 21 (16.7%) 8 (6.7%) 23 (17.4%)
  Black/African American 12 (9.5%) 11 (9.2%) 8 (6.1%)
  White 79 (62.7%) 81 (67.5%) 88 (66.7%)
  Other/Mixed 6 (4.8%) 10 (8.3%) 7 (5.3%)
Living-Learning Member 1.265 .531
  Yes 72 (57.1%) 72 (60%) 70 (53%)
Participated in Workshop #1 23 (18.3%) 29 (24.2%) NA 1.218 .270
Participated in Workshop #2 18 (14.3%) 23 (19.2%) NA .998 .318
Participated in Workshop #3 20 (15.9%) 29 (24.2%) NA 2.552 .110
Participated in ≥1 workshop 47 (37.3%) 55 (45.8%) NA 1.708 .191

Participated in 2 workshops 14 (11.1%) 15 (12.5%) NA .114 .736

Participated in 3 workshops 0 (0%) 5 (4.2%) NA 5.359 .021
*

N=830 refers to the study sample for generalized linear mixed modeling which included all students who completed at least one study survey..