Table 5: Comparison of complications of prostatectomy, classified according to the modified Calvien system, between patients with various Charlson comorbidity scores.

Charlson Comorbidity Index Test for comparison
Total CCI < 1 CCI ≥ 2 Chi square P_ value
Total patients 312 64 (21) 248 (79)
Grade I 29 8 (8) 21 (21) 2.747 0.253
Grade II 55 12 (12) 33 (33) 2.853 0.240
Grade III 10 4 (4) 6 (6) NA NA
Grade IV 4 1 (1) 3 (3) NA NA
Grade V 2 0 (0) 2 (2) NA NA
Total number of complications (%) 100 (100) 22 (22) 78 (78) 0.212 0.899