Evidence map›Paper›PMID 34152705›Full record

ArticleClinical and investigative medicine. Medecine clinique et experimentale2021

Validation of Diagnosis and Procedure Codes for Revascularization for Peripheral Artery Disease in Ontario Administrative Databases.

Jean Jacob-Brassard, Mohammed Al-Omran, Thérèse A Stukel, Muhammad Mamdani, Douglas S Lee, Charles De Mestral

Abstract read
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In one paragraph

Article in Clinical and investigative medicine. Medecine clinique et experimentale, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Observational
  5. Article
  6. Validation ofCirculation. Cardiovascular quality and outcomes · 2025
    Article
  7. Editor's Choice - Infrapopliteal Peripheral Vascular Interventions for Claudication are Performed Frequently in the USA and Are Associated with Poor Long Term Outcomes.European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery · 2025
    Article
  8. Article
  9. Article
  10. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Jean Jacob-BrassardDepartment of Surgery, University of Toronto, Toronto, ON, Canada; Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada. jean.jacob.brassard@mail.utoronto.ca.
Mohammed Al-OmranDepartment of Surgery, University of Toronto, Toronto, ON, Canada; Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada; Department of Surgery, King Saud University, Riyadh, Kingdom of Saudi Arabia.
Thérèse A StukelICES, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada.
Muhammad MamdaniLi Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada; ICES, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada; Data Science and Advanced Analytics, Unity Health Toronto, Toronto, ON, Canada.
Douglas S LeeICES, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; Peter Munk Cardiac Centre and the Joint Department of Medical Imaging at the University Health Network, Toronto, ON, Canada.
Charles De MestralDepartment of Surgery, University of Toronto, Toronto, ON, Canada; Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada; ICES, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo estimate the positive predictive value of diagnosis and procedure codes for open and endovascular revascularization for peripheral artery disease (PAD) in Ontario administrative databases.

methodsWe conducted a retrospective validation study using population-based Ontario administrative databases (2005-2019) to identify a random sample of 600 patients who underwent revascularization for PAD at two academic centres, based on ICD-10 diagnosis codes and Canada Classification of Health Intervention procedure codes. Administrative data coding was compared to the gold standard diagnosis (PAD vs. non-PAD) and revascularization approach (open vs. endovascular) extracted through blinded hospital chart re-abstraction. Positive predictive values and 95% confidence intervals were calculated. Combinations of procedure codes with or without supplemental physician claims codes were evaluated to optimize the positive predictive value.

resultsThe overall positive predictive value of PAD diagnosis codes was 87.5% (84.6%-90.0%). The overall positive predictive value of revascularization procedure codes was 94.3% (92.2%-96.0%), which improved through supplementation with physician fee claim codes to 98.1% (96.6%-99.0%). Algorithms to identify individuals revascularized for PAD had combined positive predictive values ranging from 82.8% (79.6%-85.8%) to 95.7% (93.5%-97.3%).

conclusionDiagnosis and procedure codes with or without physician claims codes allow for accurate identifi-cation of individuals revascularized for PAD in Ontario administrative databases.

Indexed as

Peripheral Arterial DiseaseAlgorithmsDatabases, FactualHumansOntarioRetrospective Studies

Identifiers

PMID34152705

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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.