Table 4.
Covariate | T | E2 | SHBG | FAI | FT |
---|---|---|---|---|---|
Age (years) | −0.61 (0.08) | 0.27 (0.49) | 0.08 (0.82) | −0.75 (0.04) | −0.81 (0.02) |
BMI | −0.39 (<0.01) | 0.22 (<0.01) | −0.46 (<0.01) | 0.16 (<0.01) | −0.21 (<0.01) |
Smoking (yes/no) | 0.02 (0.64) | 0.13 (0.02) | 0.07 (0.14) | −0.06 (0.20) | −0.03 (0.57) |
Ethnicity (African-American vs. others) | 0.13 (<0.01) | 0.17 (.<0.01) | 0.09 (0.04) | 0.02 (0.76) | 0.09 (0.05) |
Urinary creatinine | −0.07 (0.18) | 0.008 (0.90) | −0.14 (<0.01) | 0.09 (0.07) | 0.003 (0.95) |
Time of sample collection (h) | 0.22 (0.23) | 0.17 (0.41) | 0.23 (0.19) | −0.06 (0.76) | 0.10 (0.59) |
T, testosterone; E2, oestradiol; SHBG, sex hormone-binding globulin; FAI, free androgen index; FT, free testosterone; BMI, body mass index.