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Table 1 Characteristics of the study population N = 511

From: Parameters of ovarian reserve in relation to urinary concentrations of parabens

Variables

N (%)

Education

 Vocational

18 (3.52)

 Secondary

108 (21.14)

 Higher

385 (75.34)

Age [years]

 24–30

121 (23.68)

 31–39

390 (76.32)

Mean ± SD

33.30 ± 3.69

BMI [kg/m2]

  < 18,5

29 (5.68)

 18,5-24,9

301 (58.90)

 25–29,9

154 (30.14)

 30–40

27 (5.28)

Mean ± SD

23.18 ± 3.80

Smoking

 No

471 (92.17)

 Yes

40 (7.83)

Initial infertility diagnosis

 Male factor

193 (37.8)

 Idiopathic

159 (31.1)

 Female factor

146 (28.6)

 Ovulation disorders

62 (12.1)

 Tubal factor

24 (4.7)

 Uterine factor

8 (1.6)

 Endometriosis

52 (10.2)

 Missing data

13 (2.5)

Duration of couple’s infertility [years]

 1–2

39 (7.63)

 2–3

141 (27.59)

 3–5

151 (29.55)

  > 5

180 (35.23)

Alcohol use

 None or < 1 drink/week

281 (55.0)

 1–3 drinks /week

224 (44.0)

 Everyday

6 (1)