Evidence map›Paper›PMID 31405834›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2019

The impact of hospital harm on length of stay, costs of care and length of person-centred episodes of care: a retrospective cohort study.

Lauren Tessier, Sara J T Guilcher, Yu Qing Bai, Ryan Ng, Walter P Wodchis

Abstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

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

  1. Pooled it
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  6. Healthcare Priorities for Surgical Care in Canada.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2025
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  18. Observational
  19. Avoiding harm to patients: properly calculating costs of harm.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2019
    Article
  20. Health care-associated infections in Canadian hospitals: still a major problem.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2019
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Lauren TessierInstitute of Health Policy, Management and Evaluation (Tessier, Guilcher, Bai, Ng, Wodchis), University of Toronto; Health System Performance Research Network (Tessier); Leslie Dan Faculty of Pharmacy (Guilcher), University of Toronto; ICES (Bai, Ng), Toronto, Ont.; Institute for Better Health (Wodchis), Trillium Health Partners, Mississauga, Ont. lauren.tessier@mail.utoronto.ca.
Sara J T GuilcherInstitute of Health Policy, Management and Evaluation (Tessier, Guilcher, Bai, Ng, Wodchis), University of Toronto; Health System Performance Research Network (Tessier); Leslie Dan Faculty of Pharmacy (Guilcher), University of Toronto; ICES (Bai, Ng), Toronto, Ont.; Institute for Better Health (Wodchis), Trillium Health Partners, Mississauga, Ont.
Yu Qing BaiInstitute of Health Policy, Management and Evaluation (Tessier, Guilcher, Bai, Ng, Wodchis), University of Toronto; Health System Performance Research Network (Tessier); Leslie Dan Faculty of Pharmacy (Guilcher), University of Toronto; ICES (Bai, Ng), Toronto, Ont.; Institute for Better Health (Wodchis), Trillium Health Partners, Mississauga, Ont.
Ryan NgInstitute of Health Policy, Management and Evaluation (Tessier, Guilcher, Bai, Ng, Wodchis), University of Toronto; Health System Performance Research Network (Tessier); Leslie Dan Faculty of Pharmacy (Guilcher), University of Toronto; ICES (Bai, Ng), Toronto, Ont.; Institute for Better Health (Wodchis), Trillium Health Partners, Mississauga, Ont.
Walter P WodchisInstitute of Health Policy, Management and Evaluation (Tessier, Guilcher, Bai, Ng, Wodchis), University of Toronto; Health System Performance Research Network (Tessier); Leslie Dan Faculty of Pharmacy (Guilcher), University of Toronto; ICES (Bai, Ng), Toronto, Ont.; Institute for Better Health (Wodchis), Trillium Health Partners, Mississauga, Ont.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is a lack of data in Canada on the longitudinal effects of adverse events that occur in hospital, specifically in the period after discharge. Our objective was to quantify the impact of adverse events on hospital length of stay, length of person-centred episodes of care (PCEs) and costs of PCEs, as well as their impact on the total health system.

methodsWe conducted a population-based, retrospective cohort study using linked health administrative databases. We included adults in Ontario who had an acute hospital admission between Apr. 1, 2015, and Mar. 31, 2016. We grouped hospital admissions into 1 of 9 episode types and used the Canadian Institute for Health Information methodology for hospital harm to measure adverse events. We specified generalized linear models to estimate the impact of hospital harm on the following: incremental length of index acute hospital admission, incremental length of the PCE, and incremental costs of the PCE.

resultsOut of 610 979 hospital admissions, 36 004 (5.9%) involved an occurrence of harm. The impact of harm on the incremental length of hospital stay ranged from 0.4 to 24.2 days (

interpretationWe found that experiencing harm in hospital significantly affects both in-hospital and post-discharge use of health services and costs of care, and constitutes an enormous expense to Ontario's publicly funded health system.

Indexed as

Health Care CostsAdultAgedAged, 80 and overAmbulatory CareCanadaCohort StudiesCross InfectionEpisode of CareFemaleHospitalizationHumansIatrogenic DiseaseLength of StayMaleMiddle Aged

Identifiers

PMID31405834
PMCPMC6690827

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.