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. Author manuscript; available in PMC: 2016 Aug 15.
Published in final edited form as: Addict Behav. 2013 Sep 1;38(12):2937–2944. doi: 10.1016/j.addbeh.2013.08.015

Table 2.

Characteristics of the Latent Classes

Latent class p
1 2 3 4 5
n (% of total N) 285 (34%) 112 (13%) 260 (31%) 106 (13%) 81 (9%)
Age 18.32 (0.74) 18.47 (1.15) 18.27 (0.51) 18.30 (0.59) 18.36 (0.74) .194
Female (%) 51% 63% 53% 40% 58% .013
Caucasian (%) 75% 74% 80% 82% 75% .803
School type <.001
 Public (%) 70% 87% 55% 75% 75%
 Private (%) 30% 13% 45% 25% 25%
Depressive symptoms 1.41a (1.80) 7.54b (3.41) 1.57a (1.77) 3.27c (3.01) 14.83d (4.60) <.001
Anxiety symptoms 36.14a (8.07) 49.16b (4.75) 35.32a (7.40) 43.28c (7.80) 56.41d (6.99) <.001
PE 2.70a (1.07) 3.66b (0.95) 3.89b (0.83) 4.49c (0.94) 4.72c (0.87) <.001
Negative life events 3.26a (2.39) 6.08b (3.05) 3.65a,c (2.70) 4.45c (3.02) 7.21b (4.01) <.001
PSS 75.88a,c (14.15) 66.81b (15.52) 78.46a (12.91) 72.30c (13.96) 62.31b (14.58) <.001
Coping motives 1.27a (0.35) 1.80b (0.58) 1.77b (0.62) 3.14c (0.87) 3.03c (0.92) <.001
Enhancement motives 1.68a (0.60) 2.32b (0.69) 3.49c (0.79) 3.69c,d (0.83) 3.79d (0.83) <.001
Social motives 1.95a (0.64) 2.56b (0.64) 3.67c (0.65) 3.94d (0.74) 3.93d (0.77) <.001
Conformity motives 1.20a (0.35) 1.50b (0.53) 1.39b (0.47) 3.01c (0.84) 2.31d (1.00) <.001
Drinks per week 9.88a (8.40) 11.60a (9.72) 14.93b (10.20) 15.92b (9.99) 17.40b (11.34) <.001
Alcohol-related problems 31.46a (8.92) 39.64b (12.75) 38.75b (10.63) 46.21c (15.61) 52.81d (17.39) <.001

Note. Means with different subscripts are significantly different at the .05 alpha level (with Bonferroni adjustment). Standard deviations appear below the means in parentheses. PE = Positive Alcohol Outcome Expectancies; PSS = Perceived Social Support.