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Table 4 Survival and relative risk of death according to risk group as defined by prognostic model.

From: Noncutaneous malignant melanoma: a prognostic model from a retrospective multicenter study

Risk group No. of factors * No. of patients (%) % of 2-Year OS (SE) RR (95% CI)
Group 1 0 20 (23.0) 76.5 (10.4) 1
Group 2 1 46 (52.9) 64.4 (7.4) 2.94 (1.20-7.63)
Group 3 2 21 (24.1) 24.2 (10.3) 7.29 (2.64-21.11)
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