4.

Factors Significantly Associated With Mothers’ Postpartum Health (as Determined With 2-Stage Least Squares)^* (n = 661)

	Physical Health*		Mental Health†		Symptoms
Independent Variables	Coefficients (SE)	P Value	Coefficients (SE)	P Value	Coefficients (SE)	P Value
Preconception health	3.42 (0.53)	.0001‡	1.61 (0.70)	.022‡	−1.28 (0.43)	.003‡
Married/partnered	−0.58 (0.83)	.487	1.59 (1.09)	.145	−1.75 (0.67)	.009‡
Race (white)	0.28 (0.69)	.700	−1.57 (0.91)	.086	1.18 (0.56)	.034‡
Infant colic	−1.25 (1.06)	.240	−2.26 (1.39)	.104	2.52 (0.85)	.003‡
Job stress	0.39 (0.54)	.473	−2.08 (0.71)	.004‡	0.71 (0.44)	.110
Coworker support	3.17 (1.30)	.015‡	0.64 (1.70)	.707	−0.62 (1.04)	.550
Prenatal mood problems	0.36 (0.65)	.582	−2.93 (0.85)	.001‡	1.00 (0.52)	.057
Perceived control	0.39 (0.297)	.957	1.16 (0.39)	.003‡	−0.12 (0.24)	.620
Social support	−0.01 (0.093)	.902	0.52 (0.12)	.000‡	−0.14 (0.07)	.072

2SLS = 2-stage least squares

Note: Regression coefficients not statistically significant in any of the 3 equations are not reported.

^* Measured with the PCS (physical component summary of the SF-12) score.

^† Measured with the MCS (mental component summary of the SF-12) score.

^‡ Statistically significant t test on the estimated 2SLS regression coefficient.