Table 2.

Baseline data of 483 patients with ulcerative colitis

	UC
Gender
Male/Female	266/218 (1.22:1)
Environment
Rural, n (%)	209 (43.27)
Urban, n (%)	274 (56.73)
Occupational physical activity
Mild, n (%)	281 (58.18)
Moderate, n (%)	95 (19.67)
Serve, n (%)	107 (22.15)
Age, years, mean ± SD	49.06 ± 14.92
Age at diagnosis, years, mean ± SD	45.98 ± 15.09
Age at diagnosis according to Montreal classification, n (%)
<17 years	4 (0.83)
17-40 years	129 (26.71)
>40 years	350 (72.46)
Localization of disease according to Montreal classification, n (%)
E1  Rectum	90 (18.63)
E2  Left colon	160 (33.13)
E3  Extensive colon	233 (48.24)
Severity of intestinal inflammation, n (%)
Mild	154 (31.88)
Moderate	180 (37.27)
Severe	149 (30.85)
Mayo Score, n (%)
≦2 and single event ≦1  Clinical remission	179 (37.06)
3-5         Mild activity	11 (2.28)
6-10         Moderate activity	136 (28.16)
11-12        Severe activity	157 (32.50)