Evidence map›Paper›PMID 38644160›Full record

ArticleBritish journal of anaesthesia2024

Associations of preoperative anaemia with healthcare resource use and outcomes after colorectal surgery: a population-based cohort study.

Lily J Park, Husein Moloo, Tim Ramsay, Kednapa Thavorn, Justin Presseau, Terry Zwiep, Guillaume Martel, P J Devereaux, Robert Talarico, Daniel I McIsaac

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in British journal of anaesthesia, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Observational
  2. Article
  3. Article
  4. Article
  5. Review
  6. "Detect Anemia Preoperatively": A Scoping Review of Recommendations.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2025
    Review
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

10 authors.

Lily J ParkPopulation Health Research Institute, Hamilton, ON, Canada; Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, ON, Canada; Department of Surgery, Division of General Surgery, McMaster University, Hamilton, ON, Canada.
Husein MolooOttawa Hospital Research Institute, Ottawa Hospital, Ottawa, ON, Canada; Department of Surgery, Division of Colorectal Surgery, Ottawa, ON, Canada.
Tim RamsayOttawa Hospital Research Institute, Ottawa Hospital, Ottawa, ON, Canada.
Kednapa ThavornOttawa Hospital Research Institute, Ottawa Hospital, Ottawa, ON, Canada; School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada; ICES, Toronto, ON, Canada.
Justin PresseauOttawa Hospital Research Institute, Ottawa Hospital, Ottawa, ON, Canada.
Terry ZwiepDepartment of Surgery, Division of General Surgery, University of Western Ontario, London, ON, Canada.
Guillaume MartelDepartment of Surgery, Division of Hepatobiliary Surgery, University of Ottawa, Ottawa, ON, Canada.
P J DevereauxPopulation Health Research Institute, Hamilton, ON, Canada; Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, ON, Canada; Department of Medicine, Division of Cardiology, McMaster University, Hamilton, ON, Canada.
Robert TalaricoICES, Toronto, ON, Canada.
Daniel I McIsaacOttawa Hospital Research Institute, Ottawa Hospital, Ottawa, ON, Canada; ICES, Toronto, ON, Canada; Departments of Anesthesiology and Pain Medicine, The Ottawa Hospital and the University of Ottawa, Ottawa, ON, Canada. Electronic address: dmcisaac@toh.ca.

Funding

CIHR
6 · The paper itself

Abstract

backgroundPreoperative anaemia is common in patient undergoing colorectal surgery. Understanding the population-level costs of preoperative anaemia will inform development and evaluation of anaemia management at health system levels.

methodsThis was a population-based cohort study using linked, routinely collected data, including residents from Ontario, Canada, aged ≥18 yr who underwent an elective colorectal resection between 2012 and 2022. Primary exposure was preoperative anaemia (haemoglobin <130 g L

resultsWe included 54,286 patients, with mean 65.3 (range 18-102) years of age and 49.0% females, among which 21 264 (39.2%) had preoperative anaemia. There was an absolute adjusted cost increase of $2671 per person at 30 days after surgery attributable to preoperative anaemia (ratio of means [RoM] 1.05, 95% confidence interval [CI] 1.04-1.06). Compared with the control group, 30-day risks of transfusion (odds ratio [OR] 4.34, 95% CI 4.04-4.66), MAEs (OR 1.14, 95% CI 1.03-1.27), LOS (RoM 1.08, 95% CI 1.07-1.10), and readmissions (OR 1.16, 95% CI 1.08-1.24) were higher in the anaemia group, with reduced DAH (RoM 0.95, 95% CI 0.95-0.96).

conclusionsApproximately $2671 CAD per person in 30-day health system costs are attributable to preoperative anaemia after colorectal surgery in Ontario, Canada.

Indexed as

AnemiaPostoperative ComplicationsAdolescentAdultAgedAged, 80 and overCohort StudiesColorectal SurgeryFemaleHealth Care CostsHealth ResourcesHumansLength of StayMaleMiddle AgedOntarioanaemiacolorectal surgeryperioperative caresurgerytransfusion

Identifiers

PMID38644160
PMCPMC11213985

What OpenQuestion holds

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LicenceCC BY
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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.