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Table 2 Demographics and clinical characteristics of the endometriosis patients and controls

From: Role of vascular endothelial growth factor polymorphisms (-2578C > A, -460 T > C, -1154G > A, +405G > C and +936C > T) in endometriosis: a case–control study with Brazilians

Variable

Controls

Endometriosis

P valueb

No (%)

No (%)

BMI

   

  <18.5

3 (3.4)

13 (7.7)

<0.001

  18.5 ≤ BMI ≤ 24.9

31 (34.8)

113 (67.3)

  25 ≤ BMI ≤ 29.9

25 (28.1)

31 (18.5)

  30 ≤ BMI < 40

27 (30.3)

11 (6.5)

  ≤ 40

3 (3.4)

0 (0)

 

Parity

  

  0

21 (22.1)

116 (66.3)

<0.001

  1

14 (14.7)

35 (20.0)

  2

26 (27.4)

18 (10.3)

  ≤ 3

34 (35.8)

6 (3.4)

Spontaneous abortion

21 (22.8)

22 (12.6%)

0.032

Infertility

   

  No

88 (92.6)

93 (53.1)

<0.001

  Primary

6 (6.3)

60 (34.3)

  Secondary

1 (1.1)

22 (12.6)

Symptoma

  

  Dysmenorrhoea

21 (22.3)

91 (51.7)

<0.001

  Non-cyclic chronic pelvic pain

36 (38.3)

91 (51.7)

0.036

  Deep dyspareunia

12 (12.9)

100 (57.5)

<0.001

  1. BMI is Body mass index. aA patient can have more than one concomitant symptom; bChi-Square Test or Fisher’s exact test.