Table 1 Basic characteristics of study participantsa
From: Circulating sex hormone levels in relation to male sperm quality
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) |