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. 2015 Apr 16;9:2215–2231. doi: 10.2147/DDDT.S32684

Table 2.

The Bowel Function Index (BFI)

Item Intensity
Ease of defecation during the last 7 days according to patient assessment graphic file with name dddt-9-2215Fig4.jpg
Feeling of incomplete bowel evacuation during the last 7 days according to patient assessment graphic file with name dddt-9-2215Fig5.jpg
Personal judgment of patient regarding constipation during the last 7 days graphic file with name dddt-9-2215Fig6.jpg

Note: Adapted from: Validation of the Bowel Function Index to detect clinically meaningful changes in opioid-induced constipation; Rentz AM, Yu R, Müller-Lissner S, Leyendecker P; Journal of Medical Economics; 2009; Copyright © 2009 Informa Healthcare; adapted by permission of the publisher Informa Healthcare.36