Table 1.

Characteristics of the subjects included in the present study.

Parameters	Controls (n = 1,131)	Cases (n = 147)	p
Age (mean±SD)	43.0±15.6	40.4±15.0	0.25
BMI (mean±SD)	24.7±4.5	24.5±5.0	0.84
Parity (median [range])	1 [0–15]	1 [0–9]	0.71
Age at menarche (mean ±SD)	12.7±1.7	12.5±2.0	0.23
Menopause (n [%])	388 [34.3]	49 [33.3]	0.85
First sexual intercourse (mean ±SD)	19.3±6.7	18.3±3.8	0.11
Duration of pain (mean ±SD [range])	---	51.8±61.2 [6-360]	---
VAS (mean ±SD)	---	58.5±23.4	---

Age in years; BMI: body mass index; Duration of pain in months; VAS: visual analogue scale, in millimeters; SD: standard deviation.