P093 Preparation for colonoscopy in everyday routine what makes it successful

unwell, faecal incontinence, nocturnal diarrhoea, passing winds and effect on leisure activities. Reassuringly, none of these items had item-total correlations greater than 0.8, showing that all items added extra information and none had a single response chosen by more than 80% of patients i.e. all items give good discrimination. However two of the top 12 faecal incontinence and passing winds have item-total correlations less than 0.2, suggesting that they may not be measuring severity. So these items are candidates for removal from the short form. Indeed, since the top 8 items together accounted for 92% of the variation in total scores, they have the potential to form the definitive short form. We have also checked construct validity against the SF12 and EQ5D. Correlations of the short form with SF12 PCS ( 0.421), SF12 MCS ( 0.400) and EQ5D ( 0.398) were around 0.4 demonstrating good evidence of construct validity as recommended by Streiner and Norman. It is clear that the short CCQ performs well in this population and is very likely to yield a valid and efficient short form. Conclusions: We have developed a short quality of life measurement tool for patients with inflammatory bowel disease managed in community, hospital as well as patients with stoma.