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Charlson category 1, CCI score of 1-2; Charlson category 2, CCI score of 3-4; Charlson category 3, CCI score of ≥5
CCI: Charlson Comorbidity Index
| CCI categories | Group HF-CT | Group HF-S/V |
| Category 1, N (%) | 58 (29.44) | 9 (16.36) |
| Category 2, N (%) | 77 (39.09) | 16 (29.09) |
| Category 3, N (%) | 62 (31.47) | 30 (54.55) |
