Table 1.
Demographic characteristics of melanoma and non-melanoma.
| Non-melanoma (N = 4,760) | Melanoma (N = 476) | p value | |||
|---|---|---|---|---|---|
| n | % | n | % | ||
| Age | 1 | ||||
| ≤54 | 710 | 14.9 | 71 | 14.9 | |
| 55–69 | 1,430 | 30.0 | 143 | 30.0 | |
| ≥70 | 2,620 | 55.1 | 262 | 55.1 | |
| Mean ± SD | 69.91 ± 15.66 | 69.91 ± 15.67 | 1 | ||
| Sex | 1 | ||||
| Female | 2,060 | 43.3 | 206 | 43.3 | |
| Male | 2,700 | 56.7 | 270 | 56.7 | |
| Monthly income (NT$) | 0.5469 | ||||
| <20,000 | 1,527 | 32.1 | 144 | 30.3 | |
| 20,001–40,000 | 2,349 | 49.3 | 235 | 49.4 | |
| >40,000 | 884 | 18.6 | 97 | 20.4 | |
| Residential region | 0.0014 | ||||
| Northern | 1,989 | 41.8 | 242 | 50.8 | |
| Central | 1,116 | 23.4 | 87 | 18.3 | |
| Southern | 1,212 | 25.5 | 111 | 23.3 | |
| Others | 443 | 9.3 | 36 | 7.6 | |
| Stage of melanoma | |||||
| 0 | 52 | 10.9 | |||
| I | 292 | 61.3 | |||
| II | 106 | 22.3 | |||
| III | 8 | 1.7 | |||
| IV | 18 | 3.8 | |||
| Hypertension | 1,997 | 42.0 | 242 | 50.8 | 0.0002 |
| Hyperlipidemia | 986 | 20.7 | 108 | 22.7 | 0.3123 |
| Categories of Charlson comorbidity index score | |||||
| Myocardial infarction | 44 | 0.9 | 5 | 1.1 | 0.7854 |
| Congestive heart failure | 197 | 4.1 | 14 | 2.9 | 0.205 |
| Peripheral vascular disease | 56 | 1.2 | 8 | 1.7 | 0.3398 |
| Cerebrovascular | 444 | 9.3 | 56 | 11.8 | 0.0845 |
| Dementia | 175 | 3.7 | 18 | 3.8 | 0.9077 |
| Chronic pulmonary disease | 484 | 10.2 | 63 | 13.2 | 0.0370 |
| Connective tissue disease | 26 | 0.5 | 4 | 0.8 | 0.4176 |
| Peptic ulcer disease | 473 | 9.9 | 58 | 12.2 | 0.1214 |
| Mild liver disease | 187 | 3.9 | 33 | 6.9 | 0.0018 |
| Diabetes without chronic complication | 820 | 17.2 | 83 | 17.4 | 0.9079 |
| Diabetes with chronic complication | 244 | 5.1 | 26 | 5.5 | 0.7519 |
| Hemiplegia or paraplegia | 19 | 0.4 | 3 | 0.6 | 0.4454¶ |
| Renal disease | 310 | 6.5 | 41 | 8.6 | 0.0806 |
| Any malignancy | 50 | 1.1 | 21 | 4.4 | <0.0001 |
| Charlson comorbidity index score | <0.0001 | ||||
| 0 | 2,663 | 55.95 | 212 | 44.5 | |
| 1 | 1,024 | 21.51 | 126 | 26.5 | |
| 2 | 478 | 10.04 | 54 | 11.3 | |
| 3 | 280 | 5.88 | 45 | 9.5 | |
| ≥4 | 315 | 6.62 | 39 | 8.2 | |
¶Fisher’s exact test.