Evidence map›Paper›PMID 39496447›Full record

Observational studyInternal medicine (Tokyo, Japan)2025

Seasonal Variations and a Demographic Analysis of Digital Evacuation Incidence for Constipation Management: A Japanese Population-based Cohort Study.

Masamitsu Kido, Ken Inoue, Reo Kobayashi, Naoyuki Takashima, Katsutoshi Shoda, Satoshi Sugino, Reiko Kato, Yoshito Itoh

Abstract readObservational Study
In one paragraph

Observational study in Internal medicine (Tokyo, Japan), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

  1. Review
  2. 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

8 authors.

Masamitsu KidoDepartment of Orthopedic Surgery, Inage Hospital, Japan.
Ken InoueDepartment of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Japan.
Reo KobayashiDepartment of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Japan.
Naoyuki TakashimaDepartment of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Japan.
Katsutoshi ShodaFirst Department of Surgery, Faculty of Medicine, University of Yamanashi, Japan.
Satoshi SuginoDepartment of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Japan.
Reiko KatoDepartment of Pediatric Surgery, Surgical Medicine Osaka Metropolitan University Graduate School of Medicine, Japan.
Yoshito ItohDepartment of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective Digital evacuation (DE) is an intervention used to address severe constipation. Literature exists on easily administered laxatives; however, reports on mildly invasive DE usage are limited. This study aimed to elucidate the fundamental data regarding constipation management using a comprehensive national database of DE incidence. Methods This observational epidemiological study analyzed the age- and sex-stratified DE incidence per 1,000 person-years during 2014-2021 using the medical receipt database in Japan. The annual trends were evaluated using Poisson regression models. We examined the month-stratified incidence during 2019-2021 to assess potential seasonal variations using a one-way analysis of variance and unpaired t-tests with the Bonferroni correction for comparisons across the four seasons. Correlation coefficients were calculated to determine the relationship between the meteorological variables and DE incidence. Results Over the 8-year period, the DE incidence amounted to 32,361,846 procedures, with a median of 10.3 procedures per 1,000 person-years. A demographic analysis revealed a minor peak, nadir, and progressive increase peaking in the 0-4-year (22.1 procedures), 5-9-year (1.5 procedures), and ≥90-year (370.7 procedures) age groups, respectively. The age-adjusted DE incidence across all age groups per 1,000 person-years showed a declining annual trend [incidence rate ratio: 0.971 (p<0.0001)]. A seasonal analysis revealed a significant increase in DE procedures during winter compared with summer (p<0.0125). A correlation was observed between the DE incidence and certain meteorological variables, particularly the temperature. Conclusion This study highlights the notable demographic patterns and the impact of seasonal and meteorological factors on the DE incidence.

Indexed as

ConstipationSeasonsAdolescentAdultAgedAged, 80 and overChildChild, PreschoolCohort StudiesEast Asian PeopleFemaleHumansIncidenceInfantJapanLaxativesLaxativesconstipationdigital evacuationepidemiologynational databaseseasonality

Identifiers

PMID39496447
PMCPMC12222950

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LicenceCC BY-NC-ND
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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 OpenQuestion graph.