. 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 4.

Hierarchical regression analysis for prenatal and postnatal diurnal cortisol slope 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
	.09			.14			.13			.11
Income Randomization group	.01	.34	−.08	.01	.33	−1.10	.01	.34	−.09	.02	.34	−.12
	.05	1.15	−.22	.05	1.17	−.27^*	.05	1.16	−.24^*	.04	1.17	−.19
Diurnal cortisol slope	.03	.04	.17	.08	.03	.28^*	.07	.04	.27^*	.05	.04	.23^*

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

p<.05,

^**

p<.01