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Table 3 Multivariate analyses of covariance of prevalence of intimate partner abuse predicting postpartum mental health problems

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

   Univariateb
Multivariatea Stress Anxiety Depression OCD PTSD
  F ηp 2 F ηp 2 F ηp 2 F ηp 2 F ηp 2 F ηp 2
Model 1             
Intimate partner abuse before pregnancy             
 Psychological aggression 1.19 .08 3.67 .05 1.61 .02 0.73 .01 1.49 .02 3.27 .04
 Physical assault 1.48 .09 1.03 .01 0.01 .00 3.53 .04 3.37 .04 3.00 .04
 Sexual coercion 2.01 .12 2.32 .03 1.80 .02 0.01 .00 4.78* .06 0.02 .00
Covariates             
 Education 0.47 .03 0.05 .00 1.93 .02 0.59 .01 0.28 .00 0.15 .00
 Annual income 2.25 .14 0.64 .01 2.02 .03 0.10 .00 1.19 .02 1.60 .02
 Relationship status 1.65 .10 3.44 .04 1.96 .02 2.47 .03 0.41 .00 6.36* .08
Model 2             
Intimate partner abuse during pregnancy             
 Psychological aggression 2.03 .12 4.15* .05 0.68 .01 0.56 .01 1.53 .02 7.41** .09
 Physical assault 2.86* .17 1.55 .02 0.23 .00 5.59* .07 7.16** .09 7.48** .09
 Sexual coercion 2.24 .14 2.63 .03 1.65 .02 0.02 .00 7.31** .09 0.09 .00
Covariates             
 Education 0.49 .03 0.01 .00 1.44 .02 0.61 .01 0.10 .00 0.01 .00
 Annual income 2.04 .13 0.64 .01 1.59 .02 0.53 .01 2.40 .03 0.79 .01
 Relationship status 3.51** .20 8.64** .10 3.38 .04 7.24** .09 1.17 .01 17.24*** .19
  1. Note. Intimate partner abuse variables are the dichotomous predictors (yes, no). 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, 71. bUnivariate df = 1, 75. ηp 2 = partial eta-squared. *p < .05. **p < .01. ***p < .001.