Table 6.

Prediction of perinatal stress and anxiety on postpartum depression.

Variable	B	SE	95% CI	Wald X2	p
(Intercept)	−19.84	2.02	−23.81, −15.87	96.03	<0.001
Depression T1	−2.52	1.11	−4.70, -0.34	5.12	0.02
T2	−1.81	1.19	−4.14, 0.52	2.31	0.13
T3	−1.65	1.12	−3.85, 0.54	2.12	0.14
T4	-
Stress T1	0.12	0.07	-0.03, 0.26	2.45	0.12
T2	0.07	0.15	−0.23, 0.36	0.19	0.66
T3	0.10	0.12	−0.14, 0.34	0.70	0.40
T4	−0.11	0.09	−0.30, 0.07	1.41	0.23
Trait anxiety T1	0.19	0.08	0.03, 0.34	5.77	0.02
T2	0.19	0.09	0.02, 0.37	4.68	0.03
T3	0.21	0.11	−0.01, 0.43	3.47	0.06
T4	0.07	0.07	−0.06, 0.20	1.15	0.29
State anxiety T1	−0.15	0.06	−0.27, −0.03	5.54	0.02
T2	−0.05	0.06	−0.17, 0.08	0.49	0.48
T3	0.04	0.06	−0.08, 0.17	0.49	0.49
T4	0.20	0.06	0.08, 0.32	10.65	0.001
Parity	−0.25	0.75	−1.72, 1.23	0.11	0.75
Sleep disturbance	1.10	0.71	−0.29, 2.50	2.41	0.12

T1: 23 to 28 weeks of gestation; T2: 32 to 36 weeks of gestation; T3: over 36 weeks of gestation; T4: 4 to 6 weeks postpartum.