Table 1.
Patient and control characteristics.
| Controls N = 737 |
Microscopic colitis N = 131 |
P-value | CC N = 82 |
LC N = 49 |
P-value | |
|---|---|---|---|---|---|---|
| Age at study (years) | 56.16 (50.47–62.36) | 63.00 (58.94–67.15) | 0.000 | 62.77 (58.94–67.30) | 63.78 (58.74–66.85) | 0.761 |
| Age groups (%) | 0.000 | 0.763 | ||||
| 45–49 | 17.1 | 4.6 | 4.9 | 4.1 | ||
| 50–54 | 22.3 | 6.9 | 4.9 | 10.2 | ||
| 55–59 | 22.3 | 13.7 | 15.9 | 10.2 | ||
| 60–64 | 19.5 | 32.1 | 34.1 | 28.6 | ||
| 65–69 | 11.7 | 26.0 | 24.4 | 28.6 | ||
| 70–74 | 7.2 | 16.8 | 15.9 | 18.4 | ||
| Smoking habits (%) | 0.076 | 0.380 | ||||
| Never smoked | 42.3 | 27.5 | 26.8 | 28.6 | ||
| Former smokers | 29.9 | 36.6 | 32.9 | 42.9 | ||
| Current smokers | 27.8 | 35.9 | 40.2 | 28.6 | ||
| Alcohol habits (%) | ||||||
| Missing value | 0.3 | 3.8 | 0.206 | 6.1 | 0 | 0.573 |
| Nothing last year | 11.0 | 16.0 | 13.4 | 20.4 | ||
| _Something last year (not last month) | 12.3 | 13.0 | 13.4 | 12.2 | ||
| Something last month | 76.4 | 67.2 | 67.1 | 67.3 | ||
| BMI (kg/m2) | 24.84 (22.55–27.79) | 24.88 (22.62–29.15) | 0.451 | 24.70 (21.85–29.49) | 24.90 (23.10–28.33) | 0.977 |
| Missing value (%) | 0 | 44.3 | 40.2 | 51.0 | ||
| Married women (%) | 61.9 | 58.0 | 0.542 | 61.0 | 53.1 | 0.362 |
| Level of education (%) | ||||||
| Missing value | 0 | 2.3 | 0.002 | 3.7 | 0 | 0.578 |
| ≤12 years at school | 76.1 | 67.9 | 67.1 | 69.4 | ||
| >12 years at school | 23.9 | 29.8 | 29.3 | 30.6 | ||
| Employment (%) | 0.001 | 0.567 | ||||
| Employed | 65.7 | 44.3 | 46.3 | 40.8 | ||
| Retired | 26.5 | 49.6 | 46.3 | 55.1 | ||
| Others* | 7.9 | 6.1 | 7.3 | 4.1 | ||
Notes:
*
Includes housewives, students, and unemployed. Values are given as median (interquartile range). Mann-Whitney U-test or Fischer’s exact test were used for statistical calculations. P < 0.05 was considered statistically significant.