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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

VariablesN (%)
Education
 Vocational18 (3.52)
 Secondary108 (21.14)
 Higher385 (75.34)
Age [years]
 24–30121 (23.68)
 31–39390 (76.32)
Mean ± SD33.30 ± 3.69
BMI [kg/m2]
  < 18,529 (5.68)
 18,5-24,9301 (58.90)
 25–29,9154 (30.14)
 30–4027 (5.28)
Mean ± SD23.18 ± 3.80
Smoking
 No471 (92.17)
 Yes40 (7.83)
Initial infertility diagnosis
 Male factor193 (37.8)
 Idiopathic159 (31.1)
 Female factor146 (28.6)
 Ovulation disorders62 (12.1)
 Tubal factor24 (4.7)
 Uterine factor8 (1.6)
 Endometriosis52 (10.2)
 Missing data13 (2.5)
Duration of couple’s infertility [years]
 1–239 (7.63)
 2–3141 (27.59)
 3–5151 (29.55)
  > 5180 (35.23)
Alcohol use
 None or < 1 drink/week281 (55.0)
 1–3 drinks /week224 (44.0)
 Everyday6 (1)