Fig 1.
Patient selection flowchart.
Table 1.
Patient Characteristics.
Table 2.
Comorbidity Distribution Based on the Charlson Comorbidity Index (n = 4095).
Fig 2.
The influence of comorbidity according to CCI, ACCI and HN-CCI on patient survival.
Table 3.
Comorbidity Distribution Based on the HN-CCI (n = 4095).
Fig 3.
Receiver operating characteristic curve compared the discriminating ability for predicting survival of the ACCI (area = 0.693; 95% CI 0.670 to 0.715), CCI (area = 0.619; 95% CI 0.593 to 0.644) and HN-CCI (area = 0.545; 95% CI 0.519 to 0.570).