Characteristics of the population based cohorts of 47 679 Swedish patients with inflammatory bowel disease, by cohort of origin
| Ulcerative colitis | Crohn’s disease | |||
|---|---|---|---|---|
| Regional cohorts | Inpatient register | Regional cohorts | Inpatient register | |
| Number of patients are shown, excluding those followed for less than one year. | ||||
| Inpatient register | ||||
| No | 1523 | – | 1096 | – |
| Yes | 2944 | 26036 | 2465 | 19024 |
| Regional cohort | ||||
| No | – | 23092 | – | 16559 |
| Yes | 4467 | 2944 | 3561 | 2465 |
| Sex | ||||
| Male | 2476 | 14137 | 1689 | 8908 |
| Female | 1991 | 11899 | 1872 | 10116 |
| Age at entry (y) | ||||
| 0–39 | 2177 | 8792 | 2025 | 8398 |
| 40–59 | 1800 | 11451 | 1267 | 7806 |
| 60+ | 490 | 5793 | 269 | 2820 |
| Year of entry | ||||
| –1969 | 1575 | 1327 | 1053 | 929 |
| 1970–1979 | 2008 | 5037 | 1480 | 4176 |
| 1980–1989 | 884 | 9005 | 1028 | 6475 |
| 1990–1999 | – | 10667 | – | 7444 |
| Extent of inflammation | ||||
| Proctitis/terminal ileitis | 1492 | – | 1314 | – |
| Left sided/ileocolic | 1111 | – | 1095 | – |
| Pancolitis/colon Crohn | 1580 | – | 951 | – |
| Not specified | 284 | – | 201 | – |
| Accrued follow up (y) | ||||
| 1–4 | 3696 | 25454 | 3202 | 18734 |
| 5–9 | 3918 | 19913 | 3343 | 15235 |
| 10–19 | 4026 | 14021 | 3360 | 11194 |
| ⩾20 | 3181 | 5390 | 2332 | 4777 |