From: Can temperature explain the latitudinal gradient of ulcerative colitis? Cohort of Norway
 |  | UC | Non-UC | p-value |
---|---|---|---|---|
Participants | Â | 370 (0.2%) | 80152 (99.8%) | Â |
Age | Mean (SD) | 50.4 (14.0) | 51.8 (12.9) | 0.113 |
Gender | Males (%) | 57% | 50% | 0.013 |
 | Females (%) | 43% | 50% |  |
Education | Mean (SD) | 12.0 (3.7) | 12.4 (3.8) | 0.094 |
Smoking | Daily smoker (%) | 23% | 29% | 0.007 |
 | Not smoker (%) | 77% | 71% |  |