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Table 1 Maternal, infant and relationship factors at baseline in the intervention and comparison group

From: What are the effects of supporting early parenting by newborn behavioral observations (NBO)? A cluster randomised trial

  Intervention group n = 1332 Comparison group n = 1234  
n Mean (S.D.) (%) n Mean (S.D.) (%) P-value
Maternal factors
 Age (years) 1166 30.41 (4.64) 995 30.13 (4.84) 0.541
 Short education 1164 (42%) 983 (37%) 0.152
 Single living 1156 (4%) 983 (4%) 0.932
 Parity first-time 1150 (45%) 976 (48%) 0.322
 Parenting Confidence Scale (KPCS)a < 40 1088 (24%) 926 (21%) 0.112
 Major Depression Inventory (MDI)b > 14 1084 (9%) 914 (8%) 0.472
Infant factors
 Preterm (less than 37 gestational weeks) 1150 (3%) 976 (4%) 0.332
 Age & Stages Questionnaire: (ASQ:SE)b > 24 1109 (56%) 918 (53%) 0.102
 Average Age & Stages Questionnaire: (ASQ:SE)b 1095 1.67 (0.91) 932 1.63 (0.90) 0.231
Relationship factors
 Mother and Baby Interaction Scale (MABISC)b 1085 8.48 (4.29) 909 8.35 (4.28) 0.461
  1. Note ahigh score favourable blow score favourable. Mixed-effects regression1 or logistic mixed-effects regression2 analysis adjusted for clustering.