TABLE 1.
Demographic Data of Incident and Prevalent IBD Cases in VA Users, 1998 to 2009
| Incident Cases | Prevalent Cases | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UC | CD | IC | UC | CD | IC | |||||||||
| n | % | n | % | n | % | P | n | % | n | % | n | % | P | |
| Total patients | 26,272 | 16,842 | 2396 | 32,736 | 21,288 | 4092 | ||||||||
| Race | ||||||||||||||
| Caucasian | 18,816 | 71.6 | 12,086 | 71.8 | 1778 | 74.2 | <0.0001 | |||||||
| African American | 1962 | 7.5 | 1374 | 8.1 | 272 | 11.4 | ||||||||
| Hispanic | 811 | 3.0 | 359 | 2.1 | 77 | 3.2 | ||||||||
| Other | 412 | 1.6 | 230 | 1.4 | 49 | 2.0 | ||||||||
| Unknown | 4271 | 16.3 | 2793 | 16.6 | 220 | 9.2 | ||||||||
| Gender | <0.0001 | <0.0001 | ||||||||||||
| Male | 24,857 | 94.6 | 15,552 | 92.3 | 2215 | 92.4 | 30,997 | 94.7 | 19,647 | 92.3 | 3801 | 92.9 | ||
| Female | 1415 | 5.4 | 1290 | 7.7 | 181 | 7.6 | 1739 | 5.3 | 1641 | 7.7 | 291 | 7.1 | ||
| Age at IBD index, yr | <0.0001 | <0.0001 | ||||||||||||
| <25 | 420 | 1.6 | 482 | 2.9 | 96 | 4.0 | 463 | 1.4 | 553 | 2.6 | 130 | 3.2 | ||
| 25–34 | 1300 | 4.9 | 1264 | 7.5 | 220 | 9.2 | 1748 | 5.3 | 1691 | 7.9 | 401 | 9.8 | ||
| 35–44 | 1886 | 7.2 | 1577 | 9.4 | 279 | 11.6 | 2586 | 7.9 | 2273 | 10.7 | 587 | 14.3 | ||
| 45–54 | 3791 | 14.4 | 3029 | 18.0 | 508 | 21.2 | 5223 | 16.0 | 4293 | 20.2 | 933 | 22.8 | ||
| 55–64 | 6734 | 25.6 | 4201 | 24.9 | 638 | 26.7 | 7839 | 24.0 | 4916 | 23.1 | 938 | 22.9 | ||
| 65–74 | 6863 | 26.2 | 3653 | 21.7 | 446 | 18.6 | 8624 | 26.3 | 4494 | 21.1 | 764 | 18.7 | ||
| 75–84 | 4891 | 18.6 | 2409 | 14.3 | 201 | 8.4 | 5830 | 17.8 | 2820 | 13.2 | 327 | 8.0 | ||
| 85+ | 387 | 1.5 | 227 | 1.3 | 8 | 0.3 | 423 | 1.3 | 248 | 1.2 | 12 | 0.3 | ||