Evidence map›Paper›PMID 33834189›Full record

ArticleBJS open2021

Associations between preoperative anaemia and hospital costs following major abdominal surgery: cohort study.

J Meyerov, M Louis, D K Lee, L Fletcher, D Banyasz, L F Miles, R Ma, S Tosif, A N Koshy, D A Story and 2 more

Open access · goldAbstract read
In one paragraph

Article in BJS open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.2field-weighted citation impact, top 58% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

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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

12 authors at 3 institutions in 2 countries.

J MeyerovDepartment of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia.
M LouisDepartment of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia.
D K LeeDepartment of Anaesthesiology and Pain Medicine, Korea University Guro Hospital, Guro-Gu, Seoul, South Korea.
L FletcherDepartment of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia.
D BanyaszDepartment of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia.
L F MilesDepartment of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia.
R MaBusiness Intelligence Unit, Austin Health, Heidelberg, Victoria, Australia.
S TosifDepartment of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia.
A N KoshyDepartment of Cardiology, Austin Health, Heidelberg, Victoria, Australia.
D A StoryDepartment of Critical Care, University of Melbourne, Melbourne, Victoria, Australia.
R BellomoDepartment of Critical Care, University of Melbourne, Melbourne, Victoria, Australia.
L WeinbergDepartment of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia.
Austin Health · AUThe University of Melbourne · AUKorea University Medical Center · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDetermining the cost-effectiveness and sustainability of patient blood management programmes relies on quantifying the economic burden of preoperative anaemia. This retrospective cohort study aimed to evaluate the hospital costs attributable to preoperative anaemia in patients undergoing major abdominal surgery.

methodsPatients who underwent major abdominal surgery between 2010 and 2018 were included. The association between preoperative patient haemoglobin (Hb) concentration and hospital costs was evaluated by curve estimation based on the least-square method. The in-hospital cost of index admission was calculated using an activity-based costing methodology. Multivariable regression analysis and propensity score matching were used to estimate the effects of Hb concentration on variables related directly to hospital costs.

resultsA total of 1286 patients were included. The median overall cost was US $18 476 (i.q.r.13 784-27 880), and 568 patients (44.2 per cent) had a Hb level below 13.0 g/dl. Patients with a preoperative Hb level below 9.0 g/dl had total hospital costs that were 50.6 (95 per cent c.i. 14.1 to 98.9) per cent higher than those for patients with a preoperative Hb level of 9.0-13.0 g/dl (P < 0.001), 72.5 (30.6 to 128.0) per cent higher than costs for patients with a Hb concentration of 13.1-15.0 g/dl (P < 0.001), and 62.4 (21.8 to 116.7) per cent higher than those for patients with a Hb level greater than 15.0 g/dl (P < 0.001). Multivariable general linear modelling showed that packed red blood cell (PRBC) transfusions were a principal cost driver in patients with a Hb concentration below 9.0 g/dl.

conclusionPatients with the lowest Hb concentration incurred the highest hospital costs, which were strongly associated with increased PRBC transfusions. Costs and possible complications may be decreased by treating preoperative anaemia, particularly more severe anaemia.

Indexed as

AbdomenAgedAnemiaCost-Benefit AnalysisFemaleHemoglobinsHospital CostsHumansLinear ModelsMaleMiddle AgedMultivariate AnalysisPreoperative CareRetrospective StudiesHemoglobins

Identifiers

PMID33834189
PMCPMC8032965
OpenAlexW3141355256

What OpenQuestion holds

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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.