Table 2. Unadjusted Patient Outcomes and Inflation-Adjusted Costs by Hospital Volume Status.
| Complication | No. (%)a | P Value | ||
|---|---|---|---|---|
| Hospital Volume | All Patients (n = 865) |
|||
| Low (n = 717) |
High (n = 148) |
|||
| Intraoperative | 43 (6.0) | <10b | 50 (5.8) | .70 |
| Bleeding | 39 (5.4) | <10b | 46 (5.3) | .84 |
| Delayed gastric emptying | 55 (7.7) | <10b | 59 (6.8) | .03 |
| Fistula | 85 (11.8) | <10b | 94 (10.9) | .04 |
| Infection | 99 (13.8) | 20 (13.5) | 119 (13.8) | >.99 |
| Wound | 77 (10.7) | 16 (10.8) | 93 (10.8) | >.99 |
| Cardiopulmonary | 137 (19.1) | 18 (12.2) | 155 (17.9) | .046 |
| Thromboembolic | 13 (1.8) | <10b | 18 (2.1) | .21 |
| Urologic | 57 (8.0) | <10b | 65 (7.5) | .39 |
| Other | 10 (1.4) | <10b | 11 (1.3) | .70 |
| Reoperation | 16 (2.2) | <10b | 20 (2.3) | .76 |
| In-hospital mortality | 28 (3.9) | <10b | 31 (3.6) | .34 |
| Overall | 361 (50.4) | 49 (33.1) | 410 (47.4) | <.001 |
| No. of complications | ||||
| 0 | 356 (49.6) | 99 (66.9) | 455 (52.6) | <.001 |
| 1 | 147 (20.5) | 23 (15.5) | 170 (19.6) | |
| 2 | 127 (17.7) | 13 (8.8) | 140 (16.1) | |
| ≥3 | 87 (12.1) | 13 (8.8) | 100 (11.6) | |
| In-hospital mortality | 28 (3.9) | <10b | 31 (3.6) | .34 |
| Length of stay, median (IQR), d | 10 (7-15) | 9 (7-12) | 10 (7-14) | <.001 |
| Inflation-adjusted costs, median (IQR), $ | 32 667 (25 206-50 891) | 32 729 (28 834-40 906) | 32 678 (25 946-48 050) | .71 |
Abbreviation: IQR, interquartile range.
a
Percentages may not add up to 100% owing to missing data.
b
Data suppressed owing to small cell size (n <10), per the data set policy.