Table 4.

Comparisons among Latent Profiles on Current Substance Use Outcomes

	Latent Profile
	Class 1 (n = 101) M (SD)	Class 2 (n = 33) M (SD)	Class 3 (n = 343) M (SD)	Class 4 (n = 30) M (SD)	Differences
Frequency of Individual Substances
Alcohol	6.53 (0.33)	5.13 (2.38)	6.59 (1.33)	5.63 (2.04)	2 < 1,3,4
Cannabis	6.35 (1.82)	3.37 (2.57)	6.49 (1.66)	4.93 (2.80)	2 < 1,3,4
Tobacco	6.39 (1.95)	6.48 (1.65)	6.62 (1.48)	6.37 (1.88)	1 < 2,4; 3 < 2,4
Frequency of Simultaneous Substance Use
Alcohol + Cannabis	3.04 (1.25)	2.68 (1.47)	3.66 (0.98)	2.72 (1.41)	1,2,4 < 3
Alcohol + Tobacco	2.12 (1.24)	3.77 (1.65)	2.37 (1.35)	3.41 (1.21)	1 < 2,3,4; 3 < 2,4
Cannabis + Tobacco	2.47 (1.30)	2.77 (1.80)	2.23 (1.28)	2.82 (1.33)	1 < 2; 3 < 2,4
Other Health Outcomes
Other Substance Use	5.46 (1.43)	2.208 (1.86)	5.50 (1.41)	4.25 (2.15)	2 < 1,3,4
Psychological Distress	43.44 (9.04)	27.93 (16.30)	44.13 (11.41)	37.90 (18.21)	2 < 1,3,4

Note. Class 1 = Earliest AO for Alcohol; Class 2 = Latest AO of Substances; Class 3 = Late AO of Substances; Class 4 = Earliest AO for Cannabis and Tobacco; M = mean; SD = standard deviation.