Evidence map›Paper›PMID 32663152›Full record

ArticleJMIR medical informatics2020

Model-Based Algorithms for Detecting Peripheral Artery Disease Using Administrative Data From an Electronic Health Record Data System: Algorithm Development Study.

Elizabeth Hope Weissler, Steven J Lippmann, Michelle M Smerek, Rachael A Ward, Aman Kansal, Adam Brock, Robert C Sullivan, Chandler Long, Manesh R Patel, Melissa A Greiner and 3 more

Open access · goldAbstract read
In one paragraph

Article in JMIR medical informatics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Observational
  4. Review
  5. Article
  6. Article
  7. Validation ofCirculation. Cardiovascular quality and outcomes · 2025
    Article
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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

13 authors at 1 institution in 1 country.

Elizabeth Hope WeisslerDivision of Vascular and Endovascular Surgery, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0002-8442-6150
Steven J LippmannDepartment of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0003-2838-1186
Michelle M SmerekDepartment of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0003-1118-635X
Rachael A WardDepartment of Medicine, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0002-5417-8408
Aman KansalDepartment of Medicine, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0002-6031-463X
Adam BrockDepartment of Medicine, Duke University School of Medicine, Durham, NC, United States.
Robert C SullivanDepartment of Medicine, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0002-6225-8299
Chandler LongDivision of Vascular and Endovascular Surgery, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0001-5527-834X
Manesh R PatelDepartment of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0002-2393-0855
Melissa A GreinerDepartment of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0002-3614-5602
N Chantelle HardyDepartment of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0001-6962-6579
Lesley H CurtisDepartment of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0002-3286-9371
W Schuyler JonesDepartment of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States.ORCID https://orcid.org/0000-0002-7288-9596
Duke University · US

Funding

Stimulating Access to Research in Residency (StARR) - NHLBIR38HL143612 · NHLBI · DUKE UNIVERSITY · PI Mai ElMallah, David H. Harpole · 2018 to 2026
$2.6M
NHLBI NIH HHS R38 HL143612
6 · The paper itself

Abstract

backgroundPeripheral artery disease (PAD) affects 8 to 10 million Americans, who face significantly elevated risks of both mortality and major limb events such as amputation. Unfortunately, PAD is relatively underdiagnosed, undertreated, and underresearched, leading to wide variations in treatment patterns and outcomes. Efforts to improve PAD care and outcomes have been hampered by persistent difficulties identifying patients with PAD for clinical and investigatory purposes.

objectiveThe aim of this study is to develop and validate a model-based algorithm to detect patients with peripheral artery disease (PAD) using data from an electronic health record (EHR) system.

methodsAn initial query of the EHR in a large health system identified all patients with PAD-related diagnosis codes for any encounter during the study period. Clinical adjudication of PAD diagnosis was performed by chart review on a random subgroup. A binary logistic regression to predict PAD was built and validated using a least absolute shrinkage and selection operator (LASSO) approach in the adjudicated patients. The algorithm was then applied to the nonsampled records to further evaluate its performance.

resultsThe initial EHR data query using 406 diagnostic codes yielded 15,406 patients. Overall, 2500 patients were randomly selected for ground truth PAD status adjudication. In the end, 108 code flags remained after removing rarely- and never-used codes. We entered these code flags plus administrative encounter, imaging, procedure, and specialist flags into a LASSO model. The area under the curve for this model was 0.862.

conclusionsThe algorithm we constructed has two main advantages over other approaches to the identification of patients with PAD. First, it was derived from a broad population of patients with many different PAD manifestations and treatment pathways across a large health system. Second, our model does not rely on clinical notes and can be applied in situations in which only administrative billing data (eg, large administrative data sets) are available. A combination of diagnosis codes and administrative flags can accurately identify patients with PAD in large cohorts.

Indexed as

cardiologyelectronic health recordshealth datapatient selectionperipheral artery disease

Identifiers

PMID32663152
PMCPMC7468640
OpenAlexW3043304521

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.