Comparison of microscopic colitis incidence rates (per 100,000 person-years) from the published literature
| Country | Time period | Collagenous colitis | Lymphocytic colitis |
|---|---|---|---|
| *Current study. | |||
| France4 | 1987–1992 | 0.6 | |
| Sweden5 | 1984–1993 | 1.8 | |
| Sweden6 | 1993–1998 | 4.9 | 4.4 |
| Spain7 | 1993–1997 | 1.1 | 3.1 |
| Iceland8 | 1995–1999 | 5.2 | 4.0 |
| USA* | 1985–2001 | 3.1 | 5.5 |
| USA* | 1985–1997 | 1.6 | 2.7 |
| USA* | 1998–2001 | 7.1 | 12.6 |