| Characteristics | Patients | |
|---|---|---|
| No. | % | |
| Prior physician visits | ||
| Neither PCP nor dermatologist | 2,419 | 12.8 |
| PCP only | 9,551 | 50.6 |
| Dermatologist only | 994 | 5.3 |
| Both PCP and dermatologist | 5,920 | 31.3 |
| Age at diagnosis (years) | ||
| 67–75 | 8,676 | 45.9 |
| 76–85 | 7,847 | 41.6 |
| ≥86 | 2,361 | 12.5 |
| Sex | ||
| Male | 11,283 | 59.7 |
| Female | 7,601 | 40.3 |
| Race/ethnicity | ||
| Non-Hispanic white | 17,866 | 94.6 |
| Bon-Hispanic black | 115 | 0.6 |
| Hispanic | 308 | 1.6 |
| Asian/American Indian/Pacific Islander | 110 | 0.6 |
| Other | 485 | 2.6 |
| Marital status | ||
| Single (never married) | 1,129 | 6.0 |
| Married | 9,500 | 50.3 |
| Separated/divorced | 671 | 3.6 |
| Widowed | 3,640 | 19.3 |
| Unknown | 3,944 | 20.9 |
| MSA of residence | ||
| Large metropolitan | 10,570 | 56.0 |
| Metropolitan | 5,552 | 29.4 |
| Urban | 1,117 | 5.9 |
| Less urban | 1,294 | 6.9 |
| Rural | 350 | 1.9 |
| Unknown | 1 | 0.0 |
| Year of diagnosis | ||
| 1994–1997 | 3,359 | 17.8 |
| 1998–2000 | 3,802 | 20.1 |
| 2001–2005 | 11,723 | 62.1 |
| Histologic type | ||
| Melanoma NOS | 8,911 | 47.2 |
| Nodular melanoma | 1,764 | 9.3 |
| Superficial spreading | 4,579 | 24.2 |
| Lentigo maligna | 2,220 | 11.8 |
| Acral melanoma | 266 | 1.4 |
| Other | 1,144 | 6.1 |
| Stage at diagnosis* | ||
| Local, thin | 8,981 | 47.6 |
| Local, intermediate | 3,242 | 17.2 |
| Local, thick | 2,006 | 10.6 |
| Regional | 2,766 | 14.6 |
| Distant | 907 | 4.8 |
| Unknown | 982 | 5.2 |
| Charlson Comorbidity Index | ||
| 0 | 11,324 | 60.0 |
| 1 | 4,317 | 22.9 |
| ≥2 | 3,243 | 17.2 |
| Influenza vaccination | 8,017 | 42.5 |
| No | 10,867 | 57.5 |
| Yes | ||
| Surgery | ||
| Surgery with wide margin | 10,893 | 57.7 |
| Surgery without wide margin | 6,471 | 34.3 |
| No surgery | 1,454 | 7.7 |
| Unknown surgery | 66 | 0.3 |
| Lymph nodes removed | ||
| Yes | 4,213 | 22.3 |
| No | 14,328 | 75.9 |
| Unknown | 343 | 1.8 |
| Radiation | ||
| Yes | 488 | 2.6 |
| No | 18,135 | 96.0 |
| Unknown | 261 | 1.4 |
↵* Thin lesions are defined as Breslow thickness <1 mm, intermediate are 1 to 2 mm, and thick are >2 mm.
MSA, metropolitan statistical area; NOS, not otherwise specified; PCP, primary care physician.