Microscopic colitis: A large retrospective analysis from a health maintenance organization experience

Table 3 Comparison of our demographic data against published demographic data in lymphocytic colitis (mean ± SD)

	Total number	Age at diagnosis (yr)	Gender ratio M/F
Fernandez-Banares et al[1] 1999	37	65.3 ± 2.4	10/27
Agnarsdottir et al[9] 2002	54	68.7 ± 12.7	5/45
Olesen et al[3] 2004	199	59	59/140
Koskela et al[18] 2004	54	55.4 ± 13.2	8/46
Kao et al 2006	376	60.7 ± 16.1	106/270