Table 2. Mean number of annual hospitalizations (per 100 individuals) for U.S. patients with Crohn’s disease, ulcerative colitis, and controls matched on age, gender, health plan, and geographical region.
| Crohn’s disease | Ulcerative colitis | ||||||
|---|---|---|---|---|---|---|---|
| Admission type |
Patients (n = 9056) |
Controls (n = 24,829) |
Excess hospitalization# |
Patients (n=10,364) |
Controls (n=28,160) |
Excess Hospitalization# |
p* |
| Surgical hosp |
5.4 (s.d. 20) |
0.4 (s.d. 4.9) |
5.0 (s.d. 20) |
3.6 (s.d. 18) |
0.4 (s.d. 4.9) |
3.2 (s.d. 18) |
< 0.001 |
| Medical hosp (10 IBD dx) |
10.4 (s.d. 34) |
0 (s.d. 0) |
10.4 (s.d. 34) |
5.2 (s.d. 19) |
0 (s.d. 0) |
5.2 (s.d. 19) |
< 0.001 |
| Medical hosp (20 IBD dx) |
4.2 (s.d. 17) |
0 (s.d. 0) |
4.2 (s.d. 17) |
2.2 (s.d. 12) |
0 (s.d. 0) |
2.2 (s.d. 12) |
< 0.001 |
| Other hosp | 7.2 (s.d. 32) |
5.2 (s.d. 21) |
2.0 (s.d. 34) |
8.1 (s.d. 31) |
5.4 (s.d. 22) |
2.7 (s.d. 34) |
0.14 |
|
| |||||||
| All cause | 27.3 (s.d. 63) |
5.6 (s.d. 22) |
21.7 (s.d. 64) |
19.1 (s.d. 49) |
5.8 (s.d. 23) |
13.3 (s.d. 52) |
< 0.001 |
#
The number of excess hospitalizations for each case was determined by subtracting the mean number of control hospitalizations from the number of case hospitalizations.
*
P values reported here, obtained by t-tests, compare the mean number of excess hospitalizations between CD and UC patients.