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Table 2 Cox regression coefficients and c-index for precise and categorical CCI/ESRD-CI

From: Comorbidity burden at dialysis initiation and mortality: A cohort study

Index Regression coefficient [95 % CI] c-index
Precise CCI 0.55 [0.38-0.71] 0.61
Categorical CCI 0.56 [0.39-0.72] 0.61
Precise ESRD-CI 0.52 [0.38-0.66] 0.63
Categorical ESRD-CI 0.52 [0.38-0.66] 0.62