Prediction of Inadequate Bowel Preparation Using Total and Segmental Colon Transit Time in Patients with Chronic Constipation: Some Different Outcomes

Figure 1

(a) A cut-off value of TCTT of 48.0 h predicts inadequate bowel preparation with 95.7% sensitivity and 85.4% specificity (). (b) A cut-off value of RTT of 15.5 h predicts inadequate right colon preparation with 75.0% sensitivity and 85.7% specificity (). (c) A cut-off value of LTT of 17.5 h predicts inadequate left colon preparation with 77.8% sensitivity and 75.0% specificity (). (d) A cut-off value of RSTT of 19.0 h predicts inadequate rectal sigmoid colon preparation with 70.6% sensitivity and 91.9% specificity ().

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