Table 3.

Results of Cox proportional hazards regression analyses predicting alcohol dependence from trauma/PTSD status

	Hazard ratio [95% CI]
Variable	Base model	Full model
PTSD	3.54 [2.33, 5.38]	2.19 [1.37, 3.50]
Trauma without PTSD	1.85 [1.49, 2.31]	1.50 [1.22, 1.89]
African-American ethnicity	0.43 [0.29, 0.64]	0.62 [0.41, 0.94]
Maternal alcohol-related problems	1.63 [1.26, 2.11]	1.11 [0.85, 1.45]
Paternal alcohol-related problems	1.68 [1.35, 2.10]	1.32 [1.06, 1.64]
Major depressive disorder	-	1.77 [1.43, 2.20]
Conduct disorder	-	0.93 [0.62, 1.42]
Regular smoking	-	3.55 [2.80, 4.50]
Cannabis abuse	-	2.03 [1.44, 2.86]

Notes: PTSD = posttraumatic stress disorder; CI = confidence interval.