Table 4. Population Attributable Fractions and Raw SSI Rates, Stratified by Surgical Approach (Laparoscopic or Open).
| Procedure | No. (% Unadjusted SSI Rate) | PAF for Open Procedures, % | ||
|---|---|---|---|---|
| Overall | Laparoscopic | Open | ||
| Total, all 5 procedures combined | 229 726 (6.2) | 10 5144 (4.1) | 124 585 (7.9) | 34.2 |
| Right hemicolectomy | 121 065 (5.8) | 55 871 (3.9) | 65 194 (7.4) | 33.4 |
| Sigmoidectomy | 65 759 (6.3) | 30 541 (4.1) | 35 218 (8.2) | 34.4 |
| Left hemicolectomy | 21 572 (7.6) | 8138 (5.1) | 13 434 (9.1) | 32.4 |
| Other partial excision of large intestine | 11 244 (6.4) | 6772 (3.9) | 4472 (10.2) | 39.3 |
| Resection of transverse colon | 10 086 (6.2) | 3822 (4.1) | 6264 (7.5) | 33.6 |
Abbreviations: PAF, population attributable fraction; SSI, surgical site infection.