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Table 2 Comparison between postpartum and non-postpartum major depressive patients (N = 150)

From: Influence of postpartum onset on the course of mood disorders

  Postpartum (N = 33) Non-postpartum (N = 117) Statistical Analyses
Age (years) 50.8 ± 13.0 48.0 ± 13.1 t = 0.58 p = 0.565
Marital status (Single/Married) 1 0/33 24/89 X2 = 8.4 p = 0.004*
Education (years) 8.6 ± 3.6 9.9 ± 4.2 t = 1.57 p = 0.119
Workers for pay (Yes/No) 2 13/20 57/55 X2 = 1.3 p = 0.245
Personality disorders (Yes/No) 3 7/15 44/30 X2 = 5.2 p = 0.023*
Age of onset (years) 30.1 ± 6.6 29.9 ± 7.9 t = 0.14 p = 0.887
Length of illness (years) 20.7 ± 11.9 18.1 ± 13.5 t = 1.02 p = 0.308
Familiarity (0 to 3) 1.03 ± 0.5 1.00 ± 0.6 t = 0.27 p = 0.786
Psychotic symptoms (Yes/No) 11/22 34/83 X2 = 0.3 p = 0.562
Maintenance (0 to 2) 0.36 ± 0.7 0.85 ± 0.9 t = 3.15 p = 0.002*
Depressive episodes (total number) 3.06 ± 2.4 3.74 ± 3.5 t = 1.06 p = 0.291
Depressive episodes (number/year) 0.26 ± 0.3 0.41 ± 0.4 t = 2.45 p = 0.016*
  1. *Significant p < 0.05. 1assessed in 146 patients; 2assessed in 145 patients; 3assessed in 96 patients