Comparison of the Quality of Bowel Preparation for Colonoscopy in Inpatients Versus One-Day Surgery Patients


  • Jukkapong Jaturawanit


Colonoscopy, Colorectal cancer, Inpatient, One Day Surgery


Background: Currently Most of Thungsong Hospital colonoscopy patients are inpatients. One-day surgery system  reduces congestion in hospitals, reduces the length of hospital stay, reduces the risk of infection, and saves costs for patients and hospitals

Objectives: To study and compare bowel preparation results for colonoscopy between inpatients and One-day surgery patients.

Method: Retrospective observational study. By collecting data on colonoscopy patients Between 1 April 2023 and 30 June 2023, there were 186 patients, divided into 126 inpatients and 60 outpatients. By comparing 2 parts of information: Part 1 includes gender, age, BMI, and underlying diseases, and part 2 is an assessment of results of bowel preparation, Length of colonoscopy, and colonoscopy results

Results: One-day surgery and inpatient were female 60% and 57.9% (p-value = 0.789), Average age was 53.7 ± 8.65 years and 60.25 ± 10.81 years (p-value <0.001), No underlying diseases were found 81.7 and 53.2(p-value < 0.001), respectively. One-day surgery patients had bowel preparation results of Good/Excellent 1.05 times (Unadjusted RR = 1.05, 95%CI: 0.75, 1.48) with no statistical significance (p-value = 0.780) and length of colonoscope of both groups that no Statistically significant difference (p-value = 0.073).

Conclusion: The comparison of bowel preparation in the colonoscope between inpatients and one-day surgery patients found no difference.


Organization WH. The Global Cancer Observatory 2020 [Available from:

Froehlich F, Wietlisbach V, Gonvers JJ, Burnand B, Vader JP. Impact of colonic cleansing on quality and diagnostic yield of colonoscopy: the European Panel of Appropriateness of Gastrointestinal Endoscopy European multicenter study. Gastrointest Endosc. 2005;61(3):378-84.

Harewood GC, Sharma VK, de Garmo P. Impact of colonoscopy preparation quality on detection of suspected colonic neoplasia. Gastrointest Endosc. 2003;58(1):76-9.

Chokshi RV, Hovis CE, Hollander T, Early DS, Wang JS. Prevalence of missed adenomas in patients with inadequate bowel preparation on screening colonoscopy. Gastrointest Endosc. 2012;75(6):1197-203.

Rex DK, Imperiale TF, Latinovich DR, Bratcher LL. Impact of bowel preparation on efficiency and cost of colonoscopy. Am J Gastroenterol. 2002;97(7):1696-700.

Borg BB, Gupta NK, Zuckerman GR, Banerjee B, Gyawali CP. Impact of obesity on bowel preparation for colonoscopy. Clin Gastroenterol Hepatol. 2009;7(6):670-5.

Hassan C, Fuccio L, Bruno M, Pagano N, Spada C, Carrara S, et al. A predictive model identifies patients most likely to have inadequate bowel preparation for colonoscopy. Clin Gastroenterol Hepatol. 2012;10(5):501-6.

Lebwohl B, Wang TC, Neugut AI. Socioeconomic and other predictors of colonoscopy preparation quality. Dig Dis Sci. 2010;55(7):2014-20.

Rex DK. Optimal bowel preparation--a practical guide for clinicians. Nat Rev Gastroenterol Hepatol. 2014;11(7):419-25.

Aronchick CA. Bowel preparation scale. Gastrointest Endosc. 2004;60(6):1037-8; author reply 8-9.

Shein-Chung Chow JS, Hansheng Wang, Yuliya Lokhnygina. Sample Size Calculations in Clinical Research. 3rd Edition ed. New York: Bioscience, Mathematics & Statistics, Medicine, Dentistry, Nursing & Allied Health; 2017.

Chancharoen A. Comparison Outcomes Quality of Bowel Preparation before Colonoscopy between In-patients and One-Day Surgery Patients: A Randomized Controlled trial. Srinagarind Medical Journal. 2022;37(4):396-406.

Wexner SD, Beck DE, Baron TH, Fanelli RD, Hyman N, Shen B, Wasco KE. A consensus document on bowel preparation before colonoscopy: prepared by a task force from the American Society of Colon and Rectal Surgeons (ASCRS), the American Society for Gastrointestinal Endoscopy (ASGE), and the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES). Gastrointest Endosc. 2006;63(7):894-909.

Landreneau SW, Di Palma JA. Update on preparation for colonoscopy. Curr Gastroenterol Rep. 2010;12(5):366-73.

Ness RM, Manam R, Hoen H, Chalasani N. Predictors of inadequate bowel preparation for colonoscopy. Am J Gastroenterol. 2001;96(6):1797-802.




How to Cite

Jaturawanit, J. . (2024). Comparison of the Quality of Bowel Preparation for Colonoscopy in Inpatients Versus One-Day Surgery Patients. Region 11 Medical Journal, 38(2). Retrieved from



Original articles