. Author manuscript; available in PMC: 2007 Jan 17.

Published in final edited form as: J Community Psychol. 2001 Nov;29(6):637–655. doi: 10.1002/jcop.1040

Table 2.

Predicting Pregnancies at Program Exit from Background Factors, Program Participation, and the Interaction of Program Participation × Background Factors

	Pregnancies at Program Exit
Predictors	β	Odds ratio	χ²	Δχ²
Step I. main effects
Demographic background
Grade	.01
Sex	.08
Minority	.17***	1.88
Proximal behavioral risks
Prior pregnancy	.48***	25.01
Teenage parenthood	−.05
Demographic risks:
Parents education level	−.11
Single-parent household	.05
Program participation	−.17***	0.53
Summary statistics for step I			375.0***	375.0***
Step II. Interactions with demographic background
Prog. participation × grade	−.02
Prog. participation × gender	.05
Prog. participation × minority	−.02
Summary statistics for step II			376.3***	1.3
Step III. Interactions with behavioral risks
Prog. participation × prior pregnancy	.03
Prog. participation × teen parenthood	−.09**
Stratified odds ratios for prog. partic. for:
Nonteenage parents		0.66*
Teenage parents		0.18***
Summary statistics for step III			386.4***	11.1**
Step IV. Interactions with familial risks
Prog. participation × par. educ. level	−.01
Prog. participation × single-parent household	.02
Summary statistics for step IV			386.6***	0.2

Note: ***p < .001; **p < .01; *p < .05. β weights and odds ratios are from variables entry into model. Odds ratios are presented only for significant βs.