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Selected characteristics of the participants.
| Characteristic | Mean (SD) or % | Minimum | Maximum |
|---|---|---|---|
| Age (years) | 32.66 (5.87) | 19 | 44 |
| Body mass index (kg/m2) | 21.26 (2.61) | 17.12 | 28.34 |
| Age at menarche (years) | 13.24 (1.65) | 9 | 17 |
| Sports activity | 56.8 | ||
| Regular tobacco smoking | 10.5 |
