Evidence map›Paper›PMID 35992279›Full record

ArticleJMA journal2022

Association of Operative Day of the Week with the Length of Stay and Total Hospitalization Costs in Patients with Partial Mastectomy: A Nationwide Database Study in Japan.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga

Open access · diamondAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in JMA journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

3 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. Observational
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 3 institutions in 2 countries.

Takaaki KonishiDepartment of Breast and Endocrine Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Michimasa FujiogiDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan.
Nobuaki MichihataDepartment of Health Services Research, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Kojiro MoritaGlobal Nursing Research Center, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
Hiroki MatsuiDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan.
Kiyohide FushimiDepartment of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School Global Nursing Research Center, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
Masahiko TanabeDepartment of Breast and Endocrine Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Yasuyuki SetoDepartment of Breast and Endocrine Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Hideo YasunagaDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan.
The University of Tokyo · JPUniversity of Tokyo Health Sciences · JPHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Length of stay (LOS) is a major concern while optimizing medical resources and costs. Hence, factors influencing LOS should be investigated. In Japan, breast cancer surgery generally involves several days of hospitalization for observation, despite few complications. We hypothesized that the day of surgery (weekday; Monday-Friday) affects LOS. Methods: Using a Japanese nationwide database, we retrospectively identified 146,610 patients who underwent partial mastectomy for stage 0-III breast cancer from July 2010 to March 2017. We conducted multivariable linear and logistic regression analyses adjusting for background characteristics (such as comorbidities and hospital characteristics) with a generalized estimating equation for within-hospital clustering to compare postoperative and total LOS, total hospitalization costs, and postoperative complications between the groups for whom the surgery was performed on different days of the week. Results: In total, whereas the median postoperative LOS was 4 days (interquartile range, 3-6 days), the median total LOS was 6 days (5-8 days). The median total hospitalization cost was 6,189 US dollars (5,609-6,668 US dollars), and postoperative complications occurred in 3.3% of cases. Despite no significant difference in postoperative complications, Monday-Wednesday surgeries showed significantly shorter postoperative LOS than Friday surgeries (-0.11 days [95% confidence interval, -0.14 to -0.07] on Monday with reference to Friday). Nevertheless, Monday surgeries showed significantly increased total LOS (0.69 days [0.64-0.74]) and hospitalization costs (93 US dollars [71-116]) in comparison with Friday surgeries. Conclusions: The operative day of the week was associated with increased LOS and cost, with no difference in postoperative complications after partial mastectomy. Surgeries on Monday involved longer preoperative hospital stays and higher total hospitalization costs than those on other weekdays.

Indexed as

Breast cancerCostsHealth service administrationLength of stayMastectomy

Identifiers

PMID35992279
PMCPMC9358300
OpenAlexW4285175616

What OpenQuestion holds

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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 OpenQuestion graph.