. Author manuscript; available in PMC: 2016 Jul 29.

Published in final edited form as: Sex Health. 2015 Mar;12(1):59–66. doi: 10.1071/SH14089

TABLE 4.

Model Summary for Multivariate Logistic Regression Analysis for Adolescent Pregnancy

Model	Step χ²	Overall Model χ²	Nagelkerke R²	Change in Nagelkerke R²
Step 1 –Covariates and Potential Confounders	40.249^***	40.249^***	0.146	-
Step 2 – Relationship-related factors	51.831^***	91.080^***	0.310	0.164
Step 3 – Education-related factors	13.496^**	104.576^***	0.351	0.041

Coefficients for Final Model including all determinants	B	OR	95% CI for OR
Consistent Condom Use	−1.818^***	0.162	0.081–0.324
Age-disparate Sexual Relationships	0.599	1.820	0.951–3.482
Long-term school absences (past)	0.608	1.836	0.804–4.193
School Enrolment (current)	−1.060^**	0.346	0.159–0.754

Denotes significance at p ≤ 0.05 level.

^**

Denotes significance at p ≤ 0.01 level.

^***

Denotes significance at p ≤ 0.001. Controlling for age, age of sexual initiation, household poverty and rural/urban residential location.