Table 1 Characteristics of the endometriosis population

Age (years)

 <30

618 (29.0)

6 (8.3)

1.00

1.00

 30–39

327 (15.4)

5 (6.9)

1.58 (0.48–5.20)

0.456

1.85 (0.42–8.23)

0.417

 40–49

372 (17.5)

13 (18.1)

3.60 (1.38–9.55)

0.010

4.27 (1.12–16.23)

0.330

 50–59

554 (26.0)

34 (47.2)

6.32 (2.63–15.17)

< 0.001

6.92 (1.97–24.32)

0.003

 ≥60

257 (12.1)

14 (19.4)

5.61 (2.13–14.76)

< 0.001

6.27 (1.56–25.17)

0.010

BMI (kg/m2)

 <25

1189 (55.9)

38 (52.8)

1.00

1.00

 25.0–29.9

574 (27.0)

24 (33.3)

1.31 (0.78–2.20)

0.312

0.79 (0.42–1.49)

0.471

 >30

363 (17.1)

10 (13.9)

0.86 (0.42–1.75)

0.68

0.36 (0.14–0.91)

0.031

 Missing

2 (0.1)

0

Education

 Primary school

133 (6.3)

4 (5.6)

1.00

1.00

 Secondary school

1003 (47.1)

36 (50.0)

1.19 (0.42–3.41)

0.741

1.53 (0.42–5.50)

0.517

 Higher education

796 (37.4)

21 (29.2)

0.88 (0.30–2.60)

0.813

1.10 (0.29–4.16)

0.889

 Missing

196 (9.2)

11 (15.3)

Occupation

 Working

1228 (57.7)

37 (51.4)

1.00

1.00

 Retired

58 (2.7)

2 (2.8)

1.14 (0.27–4.86)

0.855

0.86 (0.17–4.26)

0.853

 Sick leave

124 (5.8)

11 (15.3)

2.94 (1.46–5.92)

0.002

2.43 (1.08–5.48)

0.033

 Studying

196 (9.2)

3 (4.2)

0.51 (0.16–1.66)

0.263

1.58 (0.42–5.95)

0.498

 Unemployed

65 (3.1)

1 (1.4)

0.51 (0.63–3.78)

0.510

0.78 (0.10–6.35)

0.813

 Other

142 (6.7)

6 (8.3)

1.40 (0.58–3.38)

0.451

2.22 (0.84–5.90)

0.109

 Missing/Multiple selections

315 (14.8)

12 (16.7)

Marital Status

 Living alone

514 (24.2)

20 (27.8)

1.00

1.00

 Living together

1260 (59.2)

39 (54.2)

0.80 (0.46–1.38)

0.414

0.74 (0.40–1.35)

0.321

 Other

161 (7.6)

1 (1.4)

0.16 (0.02–1.20)

0.074

0.46 (0.05–3.83)

0.469

 Missing

193 (9.1)

12 (16.7)

Smoking

 Never

1080 (50.8)

27 (37.5)

1.00

1.00

 Former

323 (15.2)

13 (18.1)

1.61 (0.82–3.16)

0.166

3.02 (1.19–7.68)

0.020

 Present

537 (25.2)

21 (29.2)

1.56 (0.88–2.79)

0.130

1.01 (0.52–1.95)

0.984

 Missing

188 (8.8)

11 (15.3)

Drinking frequency

 ≤1 time/month

665 (31.3)

22 (30.0)

1.00

1.00

 2–4 times/month

734 (36.8)

24 (33.3)

0.93 (0.52–1.69)

0.799

0.88 (0.45–1.73)

0.714

 2–3 times/week

448 (21.1)

14 (19.4)

0.94 (0.48–1.87)

0.870

0.60 (0.28–1.32)

0.207

 ≥4 times/week

42 (2.0)

1 (1.1)

0.72 (0.1–5.47)

0.751

0.35 (0.04–2.81)

0.321

 Missing

190 (8.9)

11 (15.3)

Drinking glasses/occasion

 1–2

1115 (52.4)

45 (62.5)

1.00

1.00

 3–4

445 (20.9)

12 (16.7)

0.67 (0.35–1.28)

0.221

0.77 (0.39–1.54)

0.467

 5–6

116 (5.5)

0

0.00 (0.00)

0.996

0.00 (0.00)

0.996

 ≥7

27 (1.3)

0

0.00 (0.00)

0.998

0.00 (0.00)

0.998

 Missing

425 (20.0)

15 (20.8)

Physical activity work*

 Light

1235 (58.0)

35 (48.6)

1.00

1.00

 Intermediate

168 (7.9)

5 (6.9)

1.05 (0.41–2.72)

0.920

0.72 (0.21–2.47)

0.605

 Hard

537 (25.2)

21 (29.2)

1.38 (0.80–2.39)

0.252

-

-

 Missing

188 (8.8)

11 (15.3)

Physical activity leisure time**

 Sedentary

150 (7.0)

9 (12.5)

1.00

1.00

 Moderate

803 (37.7)

21 (29.2)

0.44 (0.20–0.97)

0.042

0.57 (0.22–1.49)

0.252

 Moderate but regularly

546 (25.7)

22 (30.6)

0.67 (0.30–1.49)

0.327

0.98 (0.34-2,65)

0.976

 Regularly

434 (20.4)

9 (12.5)

0.35 (0.14–0.89)

0.027

0.64 (0.21–1.97)

0.439

 Missing

195 (9.2)

11 (15.3)