Annual number of all colonoscopies, colonoscopies in diarrhoea patients, and number of diagnosed cases with collagenous colitis and lymphocytic colitis
| Year | Total colonoscopies | Colonoscopies in diarrhoea patients* | CC cases diagnosed† | LC cases diagnosed† |
|---|---|---|---|---|
| CC, collagenous colitis; LC, lymphocytic colitis. | ||||
| *Percentage of all colonoscopies. | ||||
| †Percentage of patients with non-bloody diarrhoea. | ||||
| 1993 | 896 | 137 (15%) | 4 (3%) | 2 (1%) |
| 1994 | 936 | 165 (18%) | 4 (2%) | 7 (4%) |
| 1995 | 1294 | 175 (14%) | 11 (6%) | 7 (4%) |
| 1996 | 1160 | 173 (15%) | 10 (6%) | 9 (5%) |
| 1997 | 1168 | 170 (15%) | 8 (5%) | 11 (6%) |
| 1998 | 1247 | 198 (16%) | 13 (7%) | 10 (5%) |
| Total | 6701 | 1018 (15%) | 51 (5%) | 46 (5%) |