Table 1 Characteristics in melanoma patients diagnosed during 1990 to 2015
From: Types of second primary cancer influence overall survival in cutaneous melanoma
Covariate | Number of cases | Percentage (%) | ||
|---|---|---|---|---|
Age at diagnosis (years old) | < 60 | 21,164 | 45.3 | |
60–79 | 19,259 | 41.2 | ||
≥ 80 | 6303 | 13.5 | ||
Gender | Male | 22,867 | 48.9 | |
Female | 23,859 | 51.1 | ||
Year at diagnosis | 1990–1995 | 7824 | 16.7 | |
1996–2000 | 6888 | 14.7 | ||
2001–2005 | 8224 | 17.6 | ||
2006–2010 | 10,335 | 22.1 | ||
2011–2015 | 13,455 | 28.8 | ||
SPC diagnosis | No SPC | 39,589 | 84.7 | |
Second melanoma | 1856 | 4.0 | ||
Other SPC | 5281 | 11.3 | ||
Interval from first melanoma to SPC (yrs) | SPC=Second melanoma | < 1 | 575 | 31.0 |
1–5 | 635 | 34.3 | ||
6–10 | 305 | 16.4 | ||
> 10 | 340 | 18.3 | ||
SPC=Other SPC | < 1 | 500 | 9.5 | |
1–5 | 1999 | 37.9 | ||
6–10 | 1402 | 26.6 | ||
> 10 | 1380 | 26.1 | ||