Table 1.
Cutaneous malignant melanoma from SEER 9 Registries Database, 1975-2006
| All cases | Females | Males | |||||
|---|---|---|---|---|---|---|---|
| Total n | 105,829 | 48,183 | 57,646 | ||||
| % of total cases | 100% | 45.5% | 54.5% | ||||
| Rate | 17.7 | 15.2 | 21.4 | ||||
| Mean age | 55.7 | 53.0 | 57.9 | ||||
| All cases | Females | Males | IRRFemale:Male (95% CI) | ||||
| Variable | N | Rate | N | Rate | N | Rate | |
| Age at Diagnosis | |||||||
| <20 years | 1,036 | 0.6 | 628 | 0.7 | 408 | 0.5 | 1.6 (1.4, 1.8) |
| 20-29 years | 6,598 | 6.8 | 4,212 | 8.9 | 2,386 | 4.8 | 1.8 (1.7, 1.9) |
| 30-39 years | 13,987 | 14.6 | 8,069 | 17.0 | 5,918 | 12.3 | 1.3 (1.3, 1.4) |
| 40-49 years | 18,635 | 22.5 | 9,225 | 22.3 | 9,410 | 22.8 | 1.0 (0.9, 1.0) |
| 50-59 years | 19,941 | 30.4 | 8,395 | 25.3 | 11,546 | 35.8 | 0.7 (0.6, 0.7) |
| 60-69 years | 19,040 | 39.5 | 7,016 | 27.4 | 12,024 | 53.2 | 0.5 (0.5, 0.6) |
| 70-79 years | 16,614 | 49.6 | 6,177 | 31.7 | 10,437 | 74.7 | 0.4 (0.4, 0.5) |
| 80+ years | 9,978 | 53.3 | 4,461 | 35.4 | 5,517 | 90.1 | 0.3 (0.3, 0.4) |
| Anatomic site | |||||||
| Face/head/neck | 20,643 | 3.5 | 6,701 | 2.0 | 13,942 | 5.5 | 0.3 (0.3, 0.4) |
| Trunk | 35,155 | 5.9 | 12,003 | 3.9 | 23,152 | 8.3 | 0.4 (0.4, 0.5) |
| Upper Extremity | 24,584 | 4.1 | 12,328 | 3.9 | 12,256 | 4.5 | 0.9 (0.8, 0.9) |
| Lower Extremity | 20,589 | 3.4 | 15,391 | 4.9 | 5,198 | 1.9 | 2.6 (2.6, 2.7) |
| Othera | 4,858 | 0.8 | 1,760 | 0.6 | 3,098 | 1.2 | 0.5 (0.4, 0.5) |
Legend: Rates are per 100,000 and age-adjusted to the 2000 US Standard Population (Census P25-1130) Incidence rates and confidence intervals were derived from SEER*Stat software program 6.52. Relative risks were expressed as incidence rate ratios (IRRs), where a given characteristic was compared to a referent characteristic with an assigned IRR of 1.0.
Confidence intervals (δ method) are 95% for IRR (incidence rate ratios).
a
“Other” includes tumors coded as skin, not otherwise specified in SEER