. Author manuscript; available in PMC: 2017 Apr 1.

Published in final edited form as: Arch Womens Ment Health. 2015 Aug 15;19(2):317–328. doi: 10.1007/s00737-015-0563-7

Table 6.

Hierarchical regression analysis for prenatal and postnatal perceived stress and postpartum depression

Variables	First trimester			Second trimester			Third trimester			Three months PPM
Variables	R²	Standard error	Standard β	R²	Standard error	Standard β	R²	Standard error	Standard β	R²	Standard error	Standard β
	.22^*			.21^*			.28^*			.46^*
Income	.01	.30	−.09	.01	.31	−.13	.01	.29	−.09	.01	.25	−.01
Randomization group	.05	1.06	−.21^*	.05	1.07	−.20^*	.04	1.04	−.16	.05	.90	−.07
Perceived stress	.16	.07	.40^**	.15	.08	.38^**	.22	.07	.48^**	.40	.06	.66^**

Note: Randomization group was coded as 0 = attention control group and 1 = stress management group

p<.05,

^**

p<.01