Table 3. Characteristics of Hospitalizations for AP by UC Status.
| Patient characteristics | UC group |
||
|---|---|---|---|
| With UC | Without UC | P-value | |
| Patients, n (%) | 1,170 (0.45) | 257,795 (99.5) | |
| Gender | 0.723 | ||
| Male | 631 (53.9) | 141,787 (55.0) | |
| Female | 541 (46.2) | 116,008 (45.0) | |
| Race | 0.004 | ||
| White | 899 (76.8) | 164,473 (63.8) | |
| Black | 149 (12.7) | 44,856 (17.4) | |
| Hispanic | 82 (7.0) | 33,513 (13.0) | |
| Charlson Comorbidity Index score, n (%) | 0.027 | ||
| 0 | 535 (45.7) | 95,126 (36.9) | |
| 1 | 305 (26.0) | 81,979 (31.8) | |
| 2 | 180 (15.4) | 38,154 (14.8) | |
| ≥ 3 | 150 (12.8) | 42,536 (16.5) | |
| Insured type, n (%) | 0.021 | ||
| Medicaid | 293 (25.0) | 73,472 (28.5) | |
| Medicare | 366 (31.3) | 69,862 (27.1) | |
| Private | 449 (38.4) | 86,619 (33.6) | |
| Location/teaching status of hospital | 0.028 | ||
| Rural | 95 (8.1) | 29,904 (11.6) | |
| Urban non-teaching | 190 (16.2) | 54,137 (21.0) | |
| Urban teaching | 885 (75.6) | 174,012 (67.5) | |
| Relative bed size category of hospital | 0.057 | ||
| Small | 285 (24.4) | 70,636 (27.4) | |
| Medium | 280 (23.9) | 74,503 (28.9) | |
| Large | 605 (51.7) | 112,914 (43.8) | |
| Etiologies of AP | |||
| Alcoholic AP | 205 (17.5) | 79,401 (30.8) | < 0.01 |
| Biliary AP | 110 (9.4) | 42,020 (16.3) | < 0.01 |
| Drug-induced AP | 101 (8.6) | 3,609 (1.4) | < 0.01 |
AP: acute pancreatitis; UC: ulcerative colitis.