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Table 3 Demographic and obstetric variables for control participants versus intervention participants

From: Antenatal psychosomatic programming to reduce postpartum depression risk and improve childbirth outcomes: a randomized controlled trial in Spain and France

Variables Groups P
Control x ¯  (SD) Intervention x ¯  (SD)
Age, years 28.5 (6.2) 29 (5.2) 0.21*
Previous pregnancies number 2.05 (1.2) 2.01 (1.2) 0.35*
Antenatal risk of PPD (interview) 4.12 (1.8) 4.47 (1.9) 0.14*
  % %  
First pregnancy 62.00 65.20  
Multiparous 38.00 34.80 0.38**
Origin    
 Spanish 59.08 54.30  
 Another European country 3.30 3.30  
 Non-European country 37.00 42.40 0.74**
Socioeconomic level (mean annual)    
Poverty: ≤ 10000 $ USA 28.18 26.16  
Working class: 18400 to 20000 $ 35.86 30.04  
Low-middle class layer: 22000 $ 21.73 30.02 0.40**
Middle class: 24000 to 27400 $ 14.13 13.04  
Psych treatment before pregnancy 27.49 32.09 0.41**
Health problems before pregnancy 20.70 20.03 0.85**
  1. *P evaluated with t de Student.
  2. **P evaluated with Chi-Square test Pearson.