. Author manuscript; available in PMC: 2014 Aug 5.

Published in final edited form as: J Consult Clin Psychol. 2010 Jun;78(3):334–348. doi: 10.1037/a0019550

Table 5.

Growth Factor Regression Coefficients of Two-Part Latent Growth Mixture Model Assuming Two Trajectory Classes of Alcohol Use

Regression	Normative group (n = 1,191)			Problematic group (n = 293)
Regression	B	SE	95% CI	B	SE	95% CI
IU on gender	−0.33	0.21	[−0.73, 0.07]	0.27	0.41	[−0.53, 1.06]
SU on IPSY	1.17^**	0.27	[0.64, 1.71]	0.07	1.39	[−2.66, 2.80]
SU on gender	0.74^*	0.29	[0.18, 1.30]	−0.06	1.42	[−2.85, 2.73]
IY on gender	−0.45^**	0.13	[−0.71, −0.20]	−1.34^*	0.50	[−2.31, −0.36]
SY on IPSY	0.75^*	0.25	[0.27, 1.24]	−0.16	0.55	[−1.23, 0.92]
SY on gender	−0.09	0.23	[−0.54, 0.35]	1.41^*	0.55	[0.34, 2.49]

Note. CI = confidence interval; IU = intercept prevalence-part; SU = linear slope prevalence-part; IY = intercept quantity part; SY = linear slope quantity part.

p < .01.

^**

p < .001.