Table 2.
Mean (SE) Baseline Laboratory Values by Specialty of Treating Physician.
| Urology | Primary care | Endocrinology | HIV medicine | p | |
|---|---|---|---|---|---|
| Serum steroid concentrations | |||||
| Initial total testosterone (ng/dL) | 272.18 (25.7) | 257.38 (18.5) | 226.68 (25.7) | 297.02 (23.7) | .218 |
| Initial free testosterone (ng/dL) | 50.00 (6.0) | 44.99 (4.7) | 44.51 (5.6) | 52.35 (4.7) | .696 |
| Repeat total testosterone (ng/dL) | 360.10 (46.6) | 295.56 (46.0) | 260.77 (37.5) | 352.26 (58.7) | .368 |
| Repeat free testosterone (ng/dL) | 74.03 (13.0) | 47.10 (7.0) | 39.06 (9.9) | 64.42 (5.7) | .221 |
| SHBG (nmol/L) | 38.43 (3.4) | 36.07 (3.2) | 35.27 (4.4) | 50.9 (7.6) | <.001 |
| Pituitary hormones concentration | |||||
| LH (mlU/mL) | 4.40 (.53) | 8.95 (3.3) | 4.38 (.72) | 5.9 (1.9) | .074 |
| FSH (mlU/mL) | 5.72 (.86) | 13.98 (6.1) | 5.38 (1.3) | 12.93 (8.5) | .038 |
| Prolactin (ng/mL) | 12.23 (2.5) | 9.72 (1.46) | 221.38 (147.8) | n/a | <.001 |
Note. SHBG = sex hormone-binding globulin; LH = luteinizing hormone; FSH = follicle stimulating hormone.