Figure 1.

Overlap between gastroparesis and slow transit constipation. Of the 206 total study patients, 49 had radiopaque marker colonic motility studies performed. Slow transit constipation (STC) was defined as greater than 5 markers retained on day 5. Otherwise patients were defined as normal transit constipation (NTC). Rates of STC in patients with normal gastric emptying and gastroparesis were compared using the chi square test (left panel). Likewise rates of gastroparesis in patients with NTC and STC were compared using the chi square test (right panel). Error bars represent 95% confidence intervals.