Intimate partner abuse before and during pregnancy as risk factors for postpartum mental health problems

Table 4 Multivariate analyses of covariance of number of types of intimate partner abuse predicting postpartum mental health problems

			Univariate^b
	Multivariate^a		Stress		Anxiety		Depression		OCD		PTSD
	F	η_p ²	F	η_p ²	F	η_p ²	F	η_p ²	F	η_p ²	F	η_p ²
Model 1
Intimate partner abuse before pregnancy
Number of types	1.76	.11	4.21*	.10	1.05	.03	1.16	.03	5.63**	.13	3.41*	.08
Covariates
Education	0.48	.03	0.03	.00	1.73	.02	0.68	.01	0.16	.00	0.20	.00
Annual income	2.40*	.14	0.18	.00	3.43	.04	0.00	.00	0.13	.00	2.64	.03
Relationship status	1.96	.12	2.84	.04	1.40	.02	3.16	.04	0.90	.01	7.25**	.09
Model 2
Intimate partner abuse during pregnancy
Number of types	3.51***	.20	5.94**	.13	1.68	.04	2.59	.06	11.46***	.23	7.91**	.17
Covariates
Education	0.53	.03	0.00	.00	1.81	.02	0.65	.01	0.16	.00	0.04	.00
Income	2.27	.14	0.32	.00	2.69	.03	0.09	.00	0.55	.01	2.28	.03
Relationship Status	3.24*	.18	8.19**	.10	3.08	.04	6.24*	.08	0.35	.00	15.98***	.17

Note. Intimate partner abuse variables are the categorical predictors (0, 1, 2 or 3). Postpartum mental health variables are the continuous outcomes. OCD = obsessive-compulsive disorder. PTSD = posttraumatic stress disorder. Multivariate F ratios were generated from Wilks’ Lambda’s statistic. ^aMultivariate df = 5, 72. ^bUnivariate df = 1, 76. η_p ² = partial eta-squared. *p < .05. **p < .01. ***p < .001.

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