Table 1 Serum concentrations of 13α-Diol-G and testosterone by demographic characteristics
From: Testosterone and androstanediol glucuronide among men in NHANES III
|  |  | Number (%) | 13α-Diol-G, ng/ml, mean (SD) | Testosterone, ng/ml, mean (SD) |
|---|---|---|---|---|
Age, years | < 65 | 1135 (76) | 13.68 (8.95) | 5.59 (2) |
≥65 | 358 (24) | 10.91 (8.37) | 4.34 (1.87) | |
P value‡ | – | < 0.001 | < 0.001 | |
Tertiles of BMI, kg/m2 | 1st (≤23) | 475 (31.8) | 12.54 (9.36) | 6.18 (2.23) |
2nd (24–27) | 509 (34.1) | 13.27 (8.77) | 5.32 (1.89) | |
3rd (≥27) | 509 (34.1) | 13.21 (8.56) | 4.43 (1.58) | |
P value‡ | – | 0.36 | < 0.001 | |
Smoking | Never | 536 (35.9) | 13.35 (8.25) | 5.27 (1.89) |
Former | 489 (32.8) | 12.74 (10.16) | 4.52 (1.82) | |
Current | 468 (31.4) | 12.92 (8.15) | 6.1 (2.11) | |
P value‡ | – | 0.53 | < 0.001 | |
Health statusa | Good | 885 (59.3) | 13.55 (9.14) | 5.65 (2.01) |
Poor | 608 (40.7) | 12.23 (8.46) | 4.76 (1.96) | |
P value‡ | – | 0.005 | < 0.001 | |
Self-rated health | Excellent | 540 (37.2) | 13.79 (9.5) | 5.65 (1.98) |
Very good | 326 (22.5) | 12.96 (8.92) | 5.39 (2.11) | |
Good | 440 (30.3) | 12.87 (8.25) | 5.11 (1.95) | |
Fair | 128 (8.8) | 10.63 (7.68) | 4.41 (1.97) | |
Poor | 17 (1.2) | 9.8 (6.54) | 3.38 (2.01) | |
P value‡ | – | 0.003 | < 0.001 | |
Ethnicity | Non-Hispanic white | 675 (45.2) | 13.36 (9.34) | 5.0 (1.93) |
Non-Hispanic black | 369 (24.7) | 12.55 (8.87) | 5.71 (2.19) | |
Mexican-American | 391 (26.2) | 13.27 (8.41) | 5.46 (2) | |
Other | 58 (3.9) | 10.24 (5.8) | 4.8 (2) | |
P value‡ | – | 0.05 | < 0.001 |