Table 4 Independent predictive factors for inadequate bowel preparation and derivation of a prediction score.

From: Derivation and validation of a prediction model for inadequate bowel preparation in Chinese outpatients

Predictive factor

Regression coefficient

Score

Chronic constipation

0.865

3

Previous history of colorectal surgery

1.070

4

Male sex

0.525

2

High fiber diet

0.979

4

PC > 5 h

0.905

3

Total score

 

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