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Table 1 Comparison of the means (sd) of obstetric characteristics of the case and control groups

From: Association of dietary calcium intake, total and ionized serum calcium levels with preeclampsia in Ethiopia

Variable Cases (N = 42) Controls (N = 42) P
Mean SD Mean SD
Age (years) 27 6 27 4 0.824
GA (weeks) 36.68 3.83 38.50 3.64 0.04
Parity 0.73 1.05 1.04 1.68 0.083
Pre-pregnancy BMI (kg/m2) 23.29 3.25 23.22 4.06 0.63
Pregnancy BMI (Kg/m2) 26.20 3.47 26.15 4.21 0.897
  1. GA Gestational age, BMI Body mass index, SD Standard deviation, N Number