Table 3.
Complications and hospital utilization after appendectomy.
| Overall (n = 9,606) | Normal (n = 5,839) | Overweight (n = 1,727) | Obese (n = 1,572) | Morbidly Obese (n = 468) | P value | |
|---|---|---|---|---|---|---|
| Any complication | 4.96 % | 4.47 % | 5.27 % | 5.73 % | 7.26 % | 0.01a |
| Death within 30 days | 0.01 % | 0.02 % | 0.00 % | 0.00 % | 0.00 % | 1.00b |
| Specific complications: | ||||||
| Superficial incisional infection | 1.24 % | 1.01 % | 1.39 % | 1.59 % | 2.35 % | 0.03a |
| Deep incisional infection | 0.23 % | 0.24 % | 0.17 % | 0.19 % | 0.43 % | 0.67b |
| Organ space infection | 2.68 % | 2.43 % | 2.95 % | 3.05 % | 3.42 % | 0.30a |
| Wound disruption/dehiscence | 0.18 % | 0.17 % | 0.12 % | 0.25 % | 0.21 % | 0.70b |
| Pneumonia | 0.32 % | 0.29 % | 0.35 % | 0.25 % | 0.85 % | 0.22b |
| Unplanned intubation | 0.08 % | 0.03 % | 0.06 % | 0.32 % | 0.00 % | 0.02b |
| Acute renal failure | 0.03 % | 0.00 % | 0.12 % | 0.06 % | 0.00 % | 0.07b |
| Urinary tract infection | 0.15 % | 0.17 % | 0.06 % | 0.19 % | 0.00 % | 0.70b |
| Seizure | 0.03 % | 0.00 % | 0.12 % | 0.00 % | 0.00 % | 0.03b |
| Thromboembolic event requiring treatment | 0.02 % | 0.02 % | 0.06 % | 0.00 % | 0.00 % | 0.63b |
| Central line associated bloodstream infection | 0.01 % | 0.00 % | 0.00 % | 0.06 % | 0.00 % | 0.21b |
| Measures of hospital utilization | ||||||
| Operation time, minutes (SD) | 46.60 (26.95) | 45.56 (27.01) | 46.84 (27.54) | 49.00 (26.34) | 50.32 (25.25) | <0.001c |
| Mean length of stay, days (SD) | 2.61 (4.03) | 2.49 (3.69) | 2.73 (4.81) | 2.87 (4.48) | 2.82 (3.17) | 0.002c |
| Readmissions | 4.30 % | 4.52 % | 3.76 % | 3.69 % | 5.56 % | 0.16a |
| Mean work RVU (SD) | 9.78 (1.16) | 9.78 (1.15) | 9.76 (1.14) | 9.76 (1.17) | 9.88 (1.35) | 0.28c |
Footnotes: Statistical tests are indicated in the column after the p value
a
represents chi2
b
represents Fisher exact
c
represents ANOVA.