Clinical Research
Copyright ©2005 Baishideng Publishing Group Inc.
World J Gastroenterol. Apr 28, 2005; 11(16): 2462-2466
Published online Apr 28, 2005. doi: 10.3748/wjg.v11.i16.2462
Table 1 Distribution of age and course of the illness.
Age and course2000s group n (%)1990s group n (%)
Age (yr)<3021 (17.2)19 (17.9)
30-31 (25.4)33 (31.1)
40-39 (32.0)21 (19.8)
50-14 (11.5)21 (19.8)
60-17 (13.9)12 (11.3)
Total course of the illness (yr)<1.061 (50.0)a33 (31.7)
1.0-48 (39.3)40 (37.7)
5.0-6 (4.9)a18 (17.0)
10.0-7 (5.7)a15 (17.0)
Course of present
flare-up (yr)<0.585 (69.7)71 (67.0)
0.5-20 (16.4)17 (16.0)
1.0-17 (13.9)18 (17.0)