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Table 1 Distributions of characteristics between selected PE patients and Controls

From: Genetic polymorphism in DGCR8 is associated with late onset of preeclampsia

Characteristics Control (n = 330, (%)) EOPE (n = 66, (%)) LOPE (n = 206, (%)) p
Maternal age, years
  < 25 44(13.33) a 6(9.09) a 26(12.62) a < 0.001
 25–30 177(53.64) 24(36.36) 66(32.04)  
  > 30 109(33.03) 36(54.55) 114(55.34)  
Education, years
  ≤ 12 118(35.76) 26(39.39) 90(43.69) 0.186
  > 12 212 40(60.61) 116(56.31)  
Nulliparous
 Yes 152 (46.06) b 42(63.64) b 96(46.60) b 0.028
 No 178 (53.94) 24(36.36) 106(53.40)  
Active and/or passive smoking
 Yes 102 (30.90) b 31(46.97) b 61(29.61) b 0.024
 No 228 (69.09) 35(53.03) 145(70.39)  
Fetal gender
 Male 167 (50.61) 36(54.55) 86(41.75) 0.072
 Female 163 (49.39) 30(45.45) 120(58.25)  
GDM
 Yes 17 (5.15) c 6(9.09) c 40(19.42) c < 0.001
 No 313 (94.85) 60(90.91) 166(80.58)  
  1. aControl compared with EOPE, p < 0.0125, control compared with LOPE, p < 0.0125, EOPE compared with LOPE, p > 0.0125;
  2. bControl compared with EOPE, p < 0.0125, control compared with LOPE, p > 0.0125, EOPE compared with LOPE, p < 0.0125;
  3. cControl compared with EOPE, p > 0.0125, control compared with LOPE, p < 0.0125, EOPE compared with LOPE, p < 0.0125;
  4. Abbreviation: PE preeclampsia, EOPE early onset preeclampsia, LOPE late onset preeclampsia, GDM Gestational Diabetes Mellitus