Evidence map›Paper›PMID 34732171›Full record

ArticleBMC nephrology2021

Laxative use and mortality in patients on haemodialysis: a prospective cohort study.

Yu Honda, Seiji Itano, Aiko Kugimiya, Eiji Kubo, Yosuke Yamada, Miho Kimachi, Yugo Shibagaki, Tatsuyoshi Ikenoue

Abstract read
In one paragraph

Article in BMC nephrology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Tenapanor Beyond Phosphate: Gut Sodium Transport, Stool Transit Time, and Volume Balance in Dialysis Patients.Hemodialysis international. International Symposium on Home Hemodialysis · 2026
    Review
  3. Article
  4. Tenapanor: A novel therapeutic agent for dialysis patients with hyperphosphatemia.Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy · 2025
    Review
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  6. Article
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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

8 authors.

Yu Honda *Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.
Seiji Itano *Department of Nephrology and Hypertension, Kawasaki Medical School, Kurashiki, Okayama, Japan.
Aiko Kugimiya *The Advanced Emergency Medical Center, Yamanashi Prefectural Central Hospital, Yamanashi, Japan.
Eiji Kubo *Department of Nephrology, Ageo Central General Hospital, Saitama, Japan.
Yosuke Yamada *Department of Nephrology, Shinshu University School of Medicine, Nagano, Japan.
Miho KimachiKyoto University Graduate School of Medicine/Human Health Science, 53 Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
Yugo ShibagakiDepartment of Internal Medicine, Division of Nephrology and Hypertension, St. Marianna University Hospital, Kanagawa, Japan.
Tatsuyoshi IkenoueKyoto University Graduate School of Medicine/Human Health Science, 53 Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan. ikenoue.tatsuyoshi.4e@kyoto-u.ac.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients on haemodialysis (HD) are often constipated. This study aimed to assess the relationship between constipation and mortality in such patients. In this study, constipation was defined as receiving prescription laxatives, based on the investigation results of "a need to take laxatives is the most common conception of constipation" reported by the World Gastroenterology Organization Global Guidelines.

methodsThis cohort study included 12,217 adult patients on HD enrolled in the Japan-Dialysis Outcomes and Practice Patterns study phases 1 to 5 (1998 to 2015). The participants were grouped into two based on whether they were prescribed laxatives during enrolment at baseline. The primary endpoint was all-cause mortality in 3 years, and the secondary endpoint was cause-specific death. Missing values were imputed using multiple imputation methods. All estimations were calculated using a Cox proportional hazards model with an inverse probability of treatment weighting using the propensity score.

resultsLaxatives were prescribed in 30.5% of the patients, and there were 1240 all-cause deaths. There was a significant association between laxative prescription and all-cause mortality [adjusted hazard ratio (AHR), 1.12; 95% confidence interval (CI): 1.03 to 1.21]. Because the Kaplan-Meier curves of the two groups crossed over, we examined 8345 patients observed for more than 1.5 years. Laxative prescription was significantly associated with all-cause mortality (AHR, 1.35; 95% CI: 1.17 to 1.55). The AHR of infectious death was 1.62 (95% CI: 1.14 to 2.29), and that of cancerous death was 1.60 (95% CI: 1.08 to 2.36). However, cardiovascular death did not show a significant inter-group difference.

conclusionsConstipation requiring use of laxatives was associated with an increased risk of death in patients on HD. It is important to prevent patients receiving HD from developing constipation and to reduce the number of patients requiring laxatives.

Indexed as

Renal DialysisAgedCohort StudiesConstipationFemaleHumansLaxativesMaleMiddle AgedProspective StudiesLaxativesConstipationHaemodialysisLaxativesMortality

Identifiers

PMID34732171
PMCPMC8565050

What Socratic holds

Textmetadata
LicenceCC BY
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Registered trials

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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 Socratic graph.