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Table 2 Comparison between rate of constipation preoperatively and postoperatively in patients with recto-perineal fistula using McNemar’s test

From: Role of sagittal anorectoplasty in treating constipation in patients with recto-perineal fistula

 Postoperative constipationTotalMcNemar’s test
NoYes
Preoperative constipationNo7 (23.3%)07 (23.3%)p valueSig.
Yes14 (46.7%)9 (30%)23 (76.7%)0.0005S
Total21(70%)9 (30%)30 (100%)