Table 2.
Distribution of CDC-Standardized Circulating Total Testosterone Measurements Among Healthy Men of Age 19–39 Years, N = 1656
| Healthy, Nonobese Young Men |
|||
|---|---|---|---|
| Percentile | Framingham Heart Study (N = 456) | SIBLOS Study (N = 729) | Combined (N = 1185) |
| 2.5 | 265 | 264 | 264 |
| 5 | 309 | 301 | 303 |
| 10 | 357 | 344 | 349 |
| 25 | 430 | 426 | 428 |
| 50 | 533 | 529 | 531 |
| 75 | 657 | 639 | 645 |
| 90 | 772 | 775 | 773 |
| 95 | 858 | 846 | 852 |
| 97.5 | 923 | 916 | 916 |
| All Young Men | |||
| Percentile | Framingham Heart Study (N = 871) | SIBLOS Study (N = 785) | Combined (N = 1656) |
| 2.5 | 209 | 250 | 228 |
| 5 | 263 | 280 | 273 |
| 10 | 312 | 332 | 318 |
| 25 | 383 | 413 | 396 |
| 50 | 495 | 518 | 507 |
| 75 | 617 | 635 | 626 |
| 90 | 745 | 767 | 755 |
| 95 | 833 | 844 | 834 |
| 97.5 | 883 | 906 | 895 |