Table 4.

Cox proportional hazards model analysis for risk of mortality in melanoma patients.

	N	Numbers of death	HR† (95% CI)	p value
Charlson comorbidity index score
0	212	25	Reference
1	126	21	1.24 (0.69–2.23)	0.475
2	54	15	1.58 (0.81–3.11)	0.184
3	45	17	2.79 (1.46–5.30)	0.002
≥4	39	15	2.75 (1.39–5.44)	0.004
Stage 0, I
Charlson comorbidity index score
0	155	8	Reference
1	88	11	2.61 (1.01–6.78)	0.048
≥2	101	23	2.62 (1.12–6.13)	0.026
Stage II
Charlson comorbidity index score
0	45	12	Reference
1	NA	NA	0.44 (0.14–1.33)	0.144
≥2	NA	NA	3.26 (1.20–8.84)	0.020
Stage III, IV
Charlson comorbidity index score
0	12	5	Reference
1	NA	NA	3.86 (0.59–25.22)	0.158
≥2	NA	NA	5.17 (0.69–38.92)	0.110

^†Adjusted for age, sex, monthly income, residential region, hypertension, and hyperlipidemia.

NA, not available.