Table 3.

Correlation of colonic transit time and whole gut transit time as measured by the SmartPill with the number of retained ROMs.

SmartPill parameter	Overall group day 2 ROM (95% CI)	Day 2 ROMs in healthy subjects	Day 2 ROMs in constipated subjects	Overall group day 5 ROM (95% CI)	Day 5 ROMs in healthy subjects	Day 5 ROMs in constipated subjects
Colonic transit time	0.78 (0.70–0.84)	0.70	0.74	0.59 (0.46–0.69)	0.40	0.69
Whole gut transit time	0.77 (0.68–0.84)	0.74	0.67	0.58 (0.45–0.69)	0.39	0.66

Adapted from Rao et al. [2009]. CI, confidence interval; ROM, radiopaque marker.