Table 3: Results for Poisson regression (PR) model, Logit regression (LR) model, and Cox hazard model: US females, 2002-2003.

Variables PR model LR model Cox hazard model
Coef.S.E.Coef.S.E.Coef.S.E.

Cultural inheritance variable
 Same religion0.10** (1.11)0.030.22* (1.25)0.130.19*** (1.21)0.05
Demographic factors
 Age 0.05*** (1.05)0.000.03** (1.03)0.01−0.07*** (0.93)0.00
 Race (ref. = white)
  Hispanic0.24*** (1.27)0.03−0.43*** (0.65)0.140.28*** (1.32)0.06
  Non-Hispanic black0.22*** (1.25)0.05−1.57*** (0.21)0.170.11*** (1.11)0.07
  Non-Hispanic other 0.15* (1.16)0.07−0.85*** (0.43)0.30−0.03* (0.97)0.09
 Number of times R married0.19*** (1.21)0.022.26*** (9.58)0.18−0.26*** (0.77)0.04
Socioeconomic factors
 Highest degree R ever earned−0.06*** (0.94)0.010.15*** (1.16)0.03−0.03** (0.97)0.01
 Total combined family income−0.01** (0.99)0.010.10*** (1.11)0.010.01 (1.01)0.01
 If R ever worked full time for 6+ months−0.02 (0.98)0.020.08* (1.08)0.040.06*** (1.06)0.02
Family background characteristics
 Father’s education−0.02 (0.98)0.020.06 (1.06)0.050.04* (1.04)0.02
 If R lived in an intact family from birth to the age of 18 −0.01 (0.99)0.030.36** (1.43)0.13−0.03 (0.97)0.04
Proximate determinants
 If ever used birth control methods0.31** (1.36)0.12−0.22 (0.80)0.330.59*** (1.80)0.14
 If R ever had sterilization operation0.33*** (1.39)0.04−1.05 (0.35)0.150.34*** (1.40)0.05
 Constant −0.77***0.21−7.54***0.58
6,0204,6612,528
 LR 584.01
 Prob > 0.00000.00000.00000.00000.00000.0000

Sources: derived from NSFG Cycle 6 female dataset, 2002-2003 [46]. Variables foreign born, metropolitan residence, and mother’s education are dropped from models due to nonsignificant regression coefficients. *Significant at , ** , *** , one-tailed test. Numbers in parentheses are the exponentiated forms of the coefficients.