Table 2.
Baseline clinical characteristics of patients with and without anastomotic leak
| Variable | Overall (N = 99,879) | Patients without anastomotic leak (N = 93,705) | Patients with anastomotic leak (N = 6,174) | P value | |
|---|---|---|---|---|---|
| Severity level of a patient for a specific APR-DRG | |||||
| Minor | No. (%) | 23,539 (24) | 23,162 (25) | 377 (6) | <0.001 |
| Moderate | 34,029 (34) | 33,055 (35) | 974 (16) | ||
| Major | 24,386 (24) | 22,801 (24) | 1,585 (26) | ||
| Extreme | 17,925 (18) | 14,687 (16) | 3,238 (52) | ||
| APR-DRG risk of mortality | |||||
| Minor | No. (%) | 42,464 (43) | 41,412 (44) | 1,052 (17) | <0.001 |
| Moderate | 25,583 (26) | 24,506 (26) | 1,077 (17) | ||
| Major | 17,433 (17) | 15,967 (17) | 1,466 (24) | ||
| Extreme | 14,399 (14) | 11,820 (13) | 2,579 (42) | ||
| Charlson Comorbidity Index, mean (SD) | 2.5 (3.0) | 2.5 (3.0) | 2.6 (3.1) | <0.001 | |
| Comorbidity | |||||
| Comorbidity 0 | No. (%) | 35,457 (35) | 33,423 (36) | 2,034 (33) | <0.001 |
| Comorbidity ≥1 | 64,422 (65) | 60,282 (64) | 4,140 (67) | ||
| Type of index surgery | |||||
| Left colon/sigmoid | No. (%) | 37,798 (38) | 35,598 (38) | 2,200 (36) | <0.001 |
| Right colon | 19,596 (20) | 18,402 (20) | 1,194 (19) | ||
| Colorectal | 42,485 (43) | 39,705 (42) | 2,780 (45) | ||
| Admission type | |||||
| Emergency | No. (%) | 31,198 (31) | 28,448 (30) | 2,750 (45) | <0.001 |
| Urgent | 10,370 (10) | 9,568 (10) | 802 (13) | ||
| Elective | 57,969 (58) | 55,375 (59) | 2,594 (42) | ||
| Other | 342 (0) | 314 (0) | 28 (0) | ||
| Health plan | |||||
| Medicare | No. (%) | 49,119 (49) | 46,206 (49) | 2,913 (47) | <0.001 |
| Medicaid | 5,218 (5) | 4,704 (5) | 514 (8) | ||
| Commercial | 38,988 (39) | 36,793 (39) | 2,195 (36) | ||
| Other | 6,554 (7) | 6,002 (6) | 552 (9) | ||