Table 4

Number of patients with a diagnosis of microscopic colitis in relation to sex and age in 1018 patients with non-bloody diarrhoea who had a macroscopically normal or near normal colonoscopy

SexAge at colonoscopy
<50 y50–69 y⩾70 yAll ages
Female19/327 (6%)37/225 (17%)19/114 (17%)75/666 (11%)
Male1/180 (0,6%)8/115 (7%)13/57 (23%)22/352 (6%)
All20/507 (4%)45/340 (13%)32/171 (19%)97/1018 (10%)