Table 2.

Predictors of substance use in teenage mothers from logistic regression models

	6-year follow-up visit	10-year follow-up visit
Predictors of Tobacco Use	Binge-drinker at 6-year follow-up Beta = .87, Wald = 10.43*** Exp (B) = 2.39 (CI=1.41–4.05)	Smoker pre teen pregnancy Beta = 2.27, Wald = 43.74*** Exp (B) = 9.72 (CI=4.96–19.07)
		Hostility at 10-yr follow-up Beta = 1.12, Wald = 5.78* Exp (B) = 1.12 (CI=1.02–1.23)
		Marijuana at 10-yr follow-up Beta = .88, Wald = 4.69* Exp (B) = 2.42 (CI=1.09–5.37)
Model Statistics:	Hosmer-Lemeshow χ2= 7.78, ns Regression model χ2= 36.03*** Nagelkerke R2 = .17	Hosmer-Lemeshow χ2= 7.02, ns Regression model χ2= 103.6*** Nagelkerke R2 = .42
Predictors of Binge drinking	Adolescent anxiety/depression Beta = −.09, Wald = 6.90** Exp (B) = 0.91 (CI=0.85–0.98)	No significant regression model
	Smoker at 6-year follow-up Beta = .91, Wald = 10.73*** Exp (B) = 2.48 (CI=1.44–4.27)
Model Statistics:	Hosmer-Lemeshow χ2= 11.09, ns Regression model χ2= 44.31*** Nagelkerke R2 = .20
Predictors of Marijuana Use	Adolescent anxiety/depression Beta = .13, Wald = 5.91* Exp (B) = 1.14 (CI=1.03–1.26)	White race Beta = −1.34, Wald = 8.86** Exp (B) = 0.26 (CI=0.11–0.63)
	Adolescent aggression Beta = −.10, Wald = 5.91* Exp (B) = 0.91 (CI=0.84–0.98)	Income at 10-year follow-up Beta = .00, Wald = 4.34* Exp (B) = 1.00 (CI=0.99–1.00)
	Smoker pre teen pregnancy Beta = .86, Wald = 5.48** Exp (B) = 2.35 (CI=1.15–4.81)	Hostility at 10-yr follow-up Beta = .13, Wald = 7.43** Exp (B) = 1.14 (CI=1.04–1.24)
	Hostility at 6-year follow-up Beta = .10, Wald = 5.46* Exp (B) = 1.10 (CI=1.02–1.93)	Smoker at 10-yr follow-up Beta = 1.00, Wald = 6.73** Exp (B) = 2.71 (CI=1.28–5.76)
Model Statistics:	Hosmer-Lemeshow χ2= 7.97, ns Regression model χ2= 42.60*** Nagelkerke R2 = .21	Hosmer-Lemeshow χ2= 9.73, ns Regression model χ2= 77.79*** Nagelkerke R2 = .36

N.B. , ns = p > .10;

^tp < .10;

^*p < .05;

^**p < .01;

^***p < .001