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Table 2 Demographic variables and risk factors of the study population.

From: No association between polymorphisms/haplotypes of the vascular endothelial growth factor gene and preeclampsia

Characteristic

Controls

(n = 78)

PE cases

(n = 86)

P value

Maternal age, mean (range) years

25 (17-36)

27 (15-38)

0.067

Gestational age, median (range) weeks

32 (16-38)

34 (17-37)

0.028*

Number of pregnancies, median (range)

2 (1-6)

2 (1-5)

0.614

Family history of PE, n (%)

5 (6.4)

7 (8.1)

0.337

Family history of type 2 Diabetes mellitus, n (%)

24 (30.76)

35 (40.7)

0.784

Family history of arterial hypertension, n (%)

31 (39.74)

37 (43.02)

0.409

Primipaternity, n (%)

24 (30.76)

27 (28.13)

0.531

Use of barrier contraceptive method, n (%)

29 (37.18)

28 (33.55)

0.392

Nulliparous, n (%)

28 (35.89)

35 (40.69)

0.995