Table 1.
Basic characteristics of study participantsa
| Variable | N = 338 |
|---|---|
| Age at blood draw (year) | 28.8 ± 5.1 |
| BMI (kg/m2) | 24.0 ± 3.1 |
| Married, % | 81.1 |
| Current smoking, % | 47.9 |
| Current alcohol drinking, % | 63.3 |
| Serum sex hormone | |
| Luteinizing hormone (IU/L) | 4.6(2.8) |
| Follicle-stimulating hormone (IU/L) | 4.5(2.3) |
| Total testosterone (nmol/L) | 14.0(6.1) |
| Free testosterone (nmol/L) | 0.3(0.1) |
| Total estradiol (pmol/L) | 98.5(57.0) |
| Free estradiol (pmol/L) | 1.7(1.1) |
| Sex hormone-binding hormone (nmol/L) | 27.9(17.8) |
aMean ± SD is presented for continuous variables, percentage for categorical variables, and median value (interquartile range) for sex hormones