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Table 6 Hierarchical regression analyses assessing the moderating effects of breastfeeding on the relationship between daytime fatigue (component #7 from the PSQI) with bonding (Top), and mood symptoms (EPDS) and bonding (Bottom)

From: Mother-infant bonding is not associated with feeding type: a community study sample

  Level 1 Level 2 Level 3
B (SE) Beta CI95 B (SE) Beta CI95 B (SE) Beta CI95
Test of Moderation of Daytime Fatigue
 Baby age .34 (.36) .073 −.37, .11 .25 (.49) .053 −.70, 1.21 .35 (.48) .074 −.60, 1.31
 Duration breastfed −.12 (.35) −.027 −.81, .57 −.10 (.54) −.023 −1.17, .97 −.23 (.54) −.051 −1.30, .83
 PSQI component #7     3.8 (.84) .276** 2.19, 5.49 −.78 (2.07) −.056 −4.85, 3.30
 BF dummy 1     −2.70 (2.42) −.102 −7.45, 2.07 −1.51 (2.44) −.057 −6.32, 3.31
 BF dummy 2     −2.26 (2.88) −.098 −7.92, 3.40 - .68 (2.92) −.029 −6.43, 5.08
 Moderator        2.92 (1.20) .358* 7.16, 16.70
R2   .004    .081    .101  
F R2 change      7.36**    5.93*  
Test of Moderation of Depression Symptoms
 Baby age .34 (.36) .073   −.37, .11 .04 (.43) .008   −.80,.88 .084 (.42) .018   −.75, .92
 Duration breastfed −.12 (.35) −.027   −.81, .57 −.23 (.48) −.049   −1.16, .71 −.30 (.47) −.065   −1.23, .64
 EPDS      1.36 (.13) .545**   1.10, 1.62 .79 (.32) .318*   .17, 1.41
 BF dummy 1      −1.72 (2.11) −.065   −5.88, 2.44 −1.40 (2.11) −.053   −5.56, 2.75
 BF dummy 2      −1.26 (2.50) −.005   −6.19, 3.66 −.76 (2.50) −.033   −5.68, 4.17
 Moderator          .37 (.19) .249*   .001, .74
R2   .004    .295    .305  
F R2 change      36.38**    3.91*  
  1. Each level reflects a step in the regression analysis. “never breastfed” was the dummy factor contrasted with “past” (dummy 1) and with “current” (dummy 2). * p < = .050; ** p < =.001