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Table 1 Maternal characteristics and pregnancy outcome in relation to maternal obesity class. Continuous variables Mean (Std)

From: Maternal obesity (Class I-III), gestational weight gain and maternal leptin levels during and after pregnancy: a prospective cohort study

  Obesity class I Obesity class II Obesity class III P-value
N = 223 N = 77 N = 43
Maternal age (years) 30.0 (4.7) 30.4 (4.4) 29.0 (5.3) 0.322
Gestational length (full weeks) 39.2 (2.0) 39.8 (1.4) 39.0 (2.6) 0.076
Birth-weight (gram) 3708 (594) 3713 (448) 3670 (811) 0.920
Weight gain during pregnancy (kg) 10.6 (5.6) 9.6 (6.0) 7.7 (6.1) 0.015
N = 203 N = 66 N = 35
  1. P < 0.05 statistical significance in difference between obesity class I-III groups