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Table 2 Linear regression analysis where anxiety/depressiveness 6 months post partum is predicted by infant feeding (block 1); infant feeding and baseline anxiety/depressiveness (block 2); infant feeding, baseline anxiety/depressiveness, and interaction terms (block 3); and infant feeding, baseline anxiety/depressiveness, interaction terms, and medical adjusting variables (block 4)*

From: Breastfeeding cessation and symptoms of anxiety and depression: a longitudinal cohort study

Block   Adj β (95% CI) R 2 p R 2 change
1 Intercept (predominant breastfeeding) −0.10 (−0.12 - -0.07) .005 .000
  Mixed breastfeeding 0.08 (0.05 - 0.11)   
  Bottle feeding 0.24 (0.21 - 0.28)   
2 Intercept (predominant breastfeeding) −0.05 (−0.07 - -0.03) .315 .000
  Mixed breastfeeding 0.04 (0.02 - 0.06)   
  Bottle feeding 0.11 (0.09 - 0.14)   
  Anxiety/depressiveness 30th week of gestation† 0.56 (0.55 - 0.57)   
3 Intercept (predominant breastfeeding) −0.05 (−0.07 - -0.03) .316 .002
  Mixed breastfeeding 0.04 (0.02 - 0.07)   
  Bottle feeding 0.11 (0.08 - 0.14)   
  Anxiety/depressiveness 30th week of gestation† 0.55 (0.53 - 0.57)   
  Anxiety/depressiveness 30th week of gestation x mixed breastfeeding (interaction term) 0.00 (−0.02 - 0.02)   
  Anxiety/depressiveness 30th week of gestation x bottle feeding (interaction term) 0.04 (0.01 - 0.06)   
4 Intercept (predominant breastfeeding) −0.03 (−0.06 - -0.01) .317 .000
  Mixed breastfeeding 0.04 (0.02 - 0.07)   
  Bottle feeding 0.10 (0.07 - 0.13)   
  Anxiety/depressiveness 30th week of gestation† 0.55 (0.53 - 0.57)   
  Anxiety/depressiveness 30th week of gestation x mixed breastfeeding (interaction term) 0.00 (−0.02 - 0.02)   
  Anxiety/depressiveness 30th week of gestation x bottle feeding (interaction term) 0.03 (0.01 - 0.06)   
  Cesarean section −0.01 (−0.04 - 0.01)   
  Primiparous −0.05 (−0.06 - -0.03)   
  Plural Birth 0.03 (−0.03 - 0.09)   
  Preterm birth 0.01 (−0.03 - 0.04)   
  Maternal smoking 0.08 (0.05 - 0.10)   
  1. * Standardized log-transformed score of SCL-8 (i.e. anxiety/depressiveness) 6 months post partum as dependent variable.
  2. † Standardized log-transformed score of SCL-8.