Table 6.

Multiple stepwise regression analysis of postpartum depression during lactation by different characteristics and dyadic coping inventory.

Independent variable	Partial regression coefficient	Standard regression coefficient	t	P value
Marital harmony	0.903	0.190	4.765	< 0.001
Newborn health	1.069	0.194	5.524	< 0.001
Stress communication	-0.129	0.032	-4.074	< 0.001
Mutual support	-0.099	0.029	-3.389	0.001
Negative support	-0.061	0.030	-2.015	0.045
Joint support	-0.143	0.033	-4.361	< 0.001
DCI total average	0.085	0.029	4.765	0.004

R = 0.744, R² = 0.553, after the adjustment R² = 0.537, F = 33.957, P < 0.001. DCI: Dyadic coping inventory.