Table 3.

Binary Logistic Regression Predicting the Likelihood of Being High or Low in Depressive Symptoms Based on Gestational Age, Social Support from Baby’s Father, TSST Maximum Cortisol Increase, and Neuroticism

	−2LL	R²	X² (Model)	X² (Block)	B	SE (B)	Wald	OR	95% CI OR
Block 1	58.45	0.01	0.18	0.18
GA					−0.03	0.06	0.18	0.97	[0.86, 1.10]
Block 2	47.36	0.29	11.27^*	11.10^**
GA					−0.03	0.07	0.18	0.97	[0.85, 1.11]
Soc. Support (Father)					−0.85	0.37	5.47^*	0.43	[0.21, 0.87]
TSST Max Incr.					−3.74	1.96	3.64^†	0.02	[0.001, 1.11]
Block 3	38.37	0.49	20.26^***	9.00^**
GA					−0.03	0.08	0.10	0.97	[0.83, 1.14]
Soc. Support (Father)					−1.30	0.54	5.73^*	0.27	[0.09, 0.79]
TSST Max Incr.					−5.82	2.55	5.19^*	0.003	[0.00, 0.44]
Neuroticism					−1.00	0.39	6.49^*	0.37	[0.17, 0.79]
Block 4	34.13	0.56	24.50^***	4.24
GA					−0.04	0.09	0.20	0.96	[0.81, 1.15]
Soc. Support (Father)					−1.55	0.59	6.98^**	0.21	[0.07, 0.67]
TSST Max Incr.					−7.45	3.61	4.26^*	0.001	[0.00, 0.69]
Neuroticism					−1.07	0.43	6.15^*	0.34	[0.15, 0.80]
Soc. Support × TSST Max Incr.					0.12	2.47	0.002	1.13	[0.01, 141.66]
Neuroticism × Soc. Support (Father)					−0.74	0.40	3.39^†	0.48	[0.22, 1.05]
Neuroticism × TSST Max Incr.					−1.01	1.85	0.30	0.36	[0.01, 13.65]

R² is Adjusted Nagelkerke R², OR = Odds ratio (Exponentiated B), C.I. = Confidence Interval; GA = gestational age, max incr. = maximum increase, Soc. = social, TSST = Trier Social Stress Test

^***

p < .001,

^**

p < .01,

p < .05,

^†

p < .10 (marginal)