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Participants’ ratings of the degree of burden for the four different parts of the CT colonography bowel preparation. Tagitol was considered the least burdensome aspect compared with all the others (p < 0.001). Bisacodyl was considered the most burdensome aspect (bisacodyl versus low-fibre diet, p < 0.001; bisacodyl versus diatrizoate meglumine, p = 0.07; bisacodyl versus tagitol V, p < 0.001). Values represent percentages
