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Gastroenterol Res Pract. 2015;2015:628049. doi: 10.1155/2015/628049. Epub 2015 Feb 22.

The Effectiveness of Short Message Service to Assure the Preparation-to-Colonoscopy Interval before Bowel Preparation for Colonoscopy.

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Division of Gastroenterology, Department of Internal Medicine, Haeundae Paik Hospital, College of Medicine, Inje University, 1435 Jwa-dong, Haeundae-gu, Busan 612-896, Republic of Korea.
Department of Nursing, Silla University, Busan, Republic of Korea.



The preparation-to-colonoscopy (PC) interval is one of several important factors for the bowel preparation. Short message service (SMS) reminder from a cellular phone has been suggested to improve compliance in various medical situations. We evaluated the effectiveness of SMS reminders to assure the PC interval for colonoscopy.


This prospective randomized study was investigator blinded. In the No-SMS group, patients took the first 2 L polyethylene glycol (PEG) between 6 and 8 PM on the day before colonoscopy and the second 2 L PEG approximately 6 hours before the colonoscopy without SMS. In the SMS group, patients took first 2 L PEG in the same manner as the No-SMS group and the second 2 L PEG after receiving an SMS 6 hours before the colonoscopy.


The SMS group had a lower score than the No-SMS group, according to the Ottawa Bowel Preparation Scale (P < 0.001). Multivariate logistic regression analysis showed that compliance with diet instructions (odds ratio (OR) 2.109; 95% confidence interval (CI), 1.11-3.99, P = 0.022) and intervention using SMS ((OR) 2.329; 95% (CI), 1.34-4.02, P = 0.002) were the independent significant factors for satisfactory bowel preparation.


An SMS reminder to assure PC interval improved the bowel preparation quality for colonoscopy with bowel preparation.

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