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Table 1 Year of diagnosis and sex-specific number of patients with Crohn’s disease and ulcerative colitis in Taiwan, 1998-2008

From: A nationwide population-based study of the inflammatory bowel diseases between 1998 and 2008 in Taiwan

Year of diagnosis Male Female Total Male to female ratio
Crohn’s disease     
1998 25 13 38 1.9
1999 18 10 28 1.8
2000 22 10 32 2.2
2001 28 12 40 2.3
2002 27 9 36 3
2003 26 17 43 1.5
2004 37 15 52 2.5
2005 33 15 48 2.2
2006 32 16 48 2
2007 31 14 45 2.2
2008 41 15 56 2.7
Ulcerative colitis     
1998 69 49 118 1.4
1999 91 44 135 2.1
2000 78 42 120 1.9
2001 82 37 119 2.2
2002 113 76 189 1.5
2003 123 72 195 1.7
2004 100 69 169 1.4
2005 136 85 221 1.6
2006 116 85 201 1.4
2007 119 74 193 1.6
2008 123 95 218 1.3