Table 1. Patient Characteristics by Procedure and Hospital Quintiles of Mortality.
| Quintile of Hospital Mortality | |||||||
|---|---|---|---|---|---|---|---|
| Characteristic | Very Low | Low | Medium | High | Very High | p-valuea | |
| Colectomy | |||||||
| n | 98,860 | 98,685 | 98,636 | 98,728 | 98,715 | - | |
| Median age, y (IQR) | 75 (13) | 75 (12) | 75 (12) | 75 (13) | 74 (13) | 0.67 | |
| Male sex, % | 42% | 42% | 42% | 43% | 43% | 0.29 | |
| Non-white race, % | 12% | 14% | 13% | 14% | 15% | <0.01 | |
| Mean number comorbidities | 2 | 2 | 2 | 2 | 2 | 0.35 | |
| Median length of stay, d (IQR) | 8 (8) | 8 (9) | 8 (9) | 8 (9) | 8 (9) | <0.01 | |
| Pancreatectomy | |||||||
| n | 3,522 | 3,524 | 3,415 | 3,484 | 3,483 | - | |
| Median age, y (IQR) | 73 (9) | 73 (10) | 73 (10) | 73 (10) | 73 (10) | 0.88 | |
| Male sex, % | 51% | 50% | 49% | 51% | 50% | 0.61 | |
| Non-white race, % | 10% | 13% | 14% | 17% | 15% | <0.01 | |
| Mean number comorbidities | 2 | 2 | 2 | 2 | 2 | 0.44 | |
| Median length of stay, d (IQR) | 10 (8) | 11 (9) | 12 (11) | 12 (11) | 12 (12) | <0.01 | |
| Esophagectomy | |||||||
| n | 2,796 | 2,551 | 2,674 | 2,675 | 2,665 | - | |
| Median age, y (IQR) | 72 (9) | 72 (10) | 72 (9) | 72 (10) | 72 (9) | 0.93 | |
| Male sex, % | 75% | 75% | 72% | 73% | 74% | 0.16 | |
| Non-white race, % | 8% | 10% | 14% | 15% | 13% | <0.01 | |
| Mean number comorbidities | 2 | 2 | 2 | 2 | 2 | 0.34 | |
| Median length of stay, d (IQR) | 11 (11) | 11 (11) | 13 (12) | 12 (9) | 13 (11) | <0.01 | |
| Abdominal Aortic Aneurysm Repair | |||||||
| n | 37,883 | 37,746 | 37,699 | 38,030 | 37,491 | - | |
| Median age, y (IQR) | 75 (11) | 75 (11) | 75 (11) | 74 (11) | 74 (11) | 0.15 | |
| Male sex, % | 72% | 72% | 72% | 72% | 71% | 0.44 | |
| Non-white race, % | 8% | 9% | 11% | 10% | 10% | <0.01 | |
| Mean number comorbidities | 2 | 2 | 2 | 2 | 2 | 0.19 | |
| Median length of stay, d (IQR) | 5 (7) | 4 (6) | 4 (6) | 4 (6) | 4 (6) | <0.01 | |
| Lower Extremity Revascularization | |||||||
| n | 136,578 | 135,925 | 137,053 | 135,771 | 135,751 | - | |
| Median age, y (IQR) | 72 (15) | 72 (15) | 71 (14) | 71 (14) | 70 (14) | 0.35 | |
| Male sex, % | 53% | 53% | 54% | 53% | 53% | 0.73 | |
| Non-white race, % | 23% | 21% | 23% | 24% | 24% | 0.02 | |
| Mean number comorbidities | 3 | 3 | 3 | 3 | 3 | 0.49 | |
| Median length of stay, d (IQR) | 4 (7) | 4 (8) | 4 (7) | 4 (7) | 5 (7) | <0.01 | |
| Lower Extremity Amputation | |||||||
| n | 136,689 | 136,322 | 141,769 | 138,259 | 136,609 | - | |
| Median age, y (IQR) | 69 (18) | 69 (17) | 68 (16) | 69 (17) | 67 (16) | 0.81 | |
| Male sex, % | 63% | 61% | 64% | 61% | 62% | 0.91 | |
| Non-white race, % | 30% | 28% | 36% | 33% | 34% | 0.04 | |
| Mean number comorbidities | 3 | 3 | 3 | 3 | 3 | 0.28 | |
| Median length of stay, d (IQR) | 10 (10) | 10 (11) | 9 (11) | 10 (10) | 9 (10) | <0.01 | |
a
p-values indicate the difference in trend across all quintiles of hospital mortality. Results were similar when comparing very high to very low mortality quintiles alone.