Table 1.
Patient Characteristics of the Study Cohort
| Characteristic | Patients (men) |
|
|---|---|---|
| No. | % | |
| No. of patients | 3,125 | |
| Year of diagnosis | 1990-2004 | |
| Median age at diagnosis, years | 36 | |
| Range | 13-82 | |
| Proportion of county (age > 25) with less than a high school education, % | 15.4 | |
| Range | 3.7-42.2 | |
| Race | ||
| White | 2,876 | 92.0 |
| Nonwhite | 249 | 8.0 |
| SEER region | ||
| South | 258 | 8.3 |
| West | 1,644 | 52.6 |
| Midwest | 782 | 25.0 |
| Northeast | 441 | 14.1 |
| Tumor category | ||
| T1 | 2,451 | 78.4 |
| T2 | 604 | 19.3 |
| T3/T4 | 70 | 2.2 |
| Tumor size, cm | ||
| ≤ 4 | 1,872 | 59.9 |
| > 4 | 1,253 | 40.1 |
Abbreviation: SEER, Surveillance Epidemiology and End Results.