Table 1.
Characteristics of the Study Sample (Weighted)
| Characteristic | Urinary Diversion, No. (%) | P | |
|---|---|---|---|
| Continent | Ileal Conduit | ||
| Total | 4539 (16.5) | 22,955 (83.5) | |
| Mean age, y | 65.9 | 68.8 | <.001 |
| <55 | 740 (16.3) | 2321 (10.1) | <.001 |
| 55–64 | 1195 (26.3) | 4744 (20.7) | |
| 65–74 | 1500 (33.1) | 8340 (36.3) | |
| ≥75 | 1104 (24.3) | 7550 (32.9) | |
| Sex | |||
| Male | 3935 (79.7) | 19,077 (83.1) | .02 |
| Female | 605 (20.3) | 3878 (16.9) | |
| Race/ethnicity | |||
| White | 2778 (61.2) | 14,756 (64.3) | .18 |
| Nonwhite | 391 (8.6) | 1655 (7.2) | |
| Missing | 1370 (30.2) | 6544 (28.5) | |
| Primary payer | |||
| Private | 1920 (42.3) | 7421 (32.4) | <.001 |
| Medicare | 2374 (52.3) | 14,471 (63.1) | |
| Medicaid/other | 245 (5.4) | 1034 (4.5) | |
| ZIP code income quartile | |||
| 1 (lowest income quartile) | 955 (21.0) | 4524 (19.7) | .13 |
| 2 | 1215 (26.7) | 5734 (25.0) | |
| 3 | 684 (15.1) | 4061 (17.7) | |
| 4 (highest income quartile) | 697 (15.4) | 3897 (17.0) | |
| Missing | 989 (21.8) | 4739 (20.6) | |
| Hospital type | |||
| Urban teaching | 3067 (67.6) | 14,309 (62.4) | .07 |
| Urban nonteaching | 1181 (26.0) | 7194 (31.3) | |
| Rural | 291 (6.4) | 1452 (6.3) | |
| Hospital volume, mean | 26.9 | 23.9 | .08 |
| High volume hospitala | 2191 (48.3) | 10,491 (45.7) | .36 |
| Hospital region | |||
| Northeast | 818 (18.0) | 4883 (21.3) | .30 |
| Midwest | 1189 (26.2) | 5973 (26.0) | |
| South | 1756 (38.7) | 7943 (34.6) | |
| West | 776 (17.1) | 4157 (18.1) | |
a
Based on 90th percentile hospital volume or >14 cases over the study period.