Evidence map›Paper›PMID 26576140›Full record

ArticleIntestinal research2015

Colon Transit Time May Predict Inadequate Bowel Preparation in Patients With Chronic Constipation.

Hong Jun Park, Myeong Hun Chae, Hyun-Soo Kim, Jae Woo Kim, Moon Young Kim, Soon Koo Baik, Sang Ok Kwon, Hee Man Kim, Kyong Joo Lee

Open access · diamondAbstract read
In one paragraph

Article in Intestinal research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 pooled it
0.9field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. [Seoul Consensus on Clinical Practice Guidelines for Functional Constipation].The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi · 2025
    Guideline
  3. Pooled it
  4. Shorter waiting times from education to colonoscopy can improve the quality of bowel preparation: A randomized controlled trial.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2018
    Trial
  5. Article
  6. Review
  7. Review
  8. Observational
  9. Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Hong Jun ParkDepartment of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Myeong Hun ChaeDepartment of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Hyun-Soo KimDepartment of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Jae Woo KimDepartment of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Moon Young KimDepartment of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Soon Koo BaikDepartment of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Sang Ok KwonDepartment of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Hee Man KimDepartment of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Kyong Joo LeeDepartment of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Yonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsWe evaluated whether colonic transit time (CTT) can predict the degree of bowel preparation in patients with chronic constipation undergoing scheduled colonoscopy in order to assist in the development of better bowel preparation strategies for these patients.

methodsWe analyzed the records of 160 patients with chronic constipation from March 2007 to November 2012. We enrolled patients who had undergone a CTT test followed by colonoscopy. We defined patients with a CTT ≥30 hours as the slow transit time (STT) group, and patients with a CTT <30 hours as the normal transit time (NTT) group. Boston Bowel Preparation Scale (BBPS) scores were compared between the STT and NTT groups.

resultsOf 160 patients with chronic constipation, 82 (51%) were included in the STT group and 78 (49%) were included in the NTT group. Patients with a BBPS score of <6 were more prevalent in the STT group than in the NTT group (31.7% vs. 10.3%, P=0.001). Multivariate analysis showed that slow CTT was an independent predictor of inadequate bowel preparation (odds ratio, 0.261; 95% confidence interval, 0.107-0.634; P=0.003). The best CTT cut-off value for predicting inadequate bowel preparation in patients with chronic constipation was 37 hours, as determined by receiver operator characteristic (ROC) curve analysis (area under the ROC curve: 0.676, specificity: 0.735, sensitivity: 0.643).

conclusionsPatients with chronic constipation and a CTT >30 hours were at risk for inadequate bowel preparation. CTT measured prior to colonoscopy could be useful for developing individualized strategies for bowel preparation in patients with slow CTT, as these patients are likely to have inadequate bowel preparation.

Indexed as

Bowel preparationColonoscopyColon transit timeConstipation

Identifiers

PMID26576140
PMCPMC4641861
OpenAlexW2281289975

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.