Evidence map›Paper›PMID 20011725›Full record

ArticleCanadian respiratory journal

Identifying patients with physician-diagnosed asthma in health administrative databases.

Andrea S Gershon, Chengning Wang, Jun Guan, Jovonka Vasilevska-Ristovska, Lisa Cicutto, Teresa To

Abstract readComparative Study
In one paragraph

Article in Canadian respiratory journal. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 223 papers.

0numbers the graph read from it
0cells of the map it votes in
223citing 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

223 citing papers in PubMed.

  1. Article
  2. Pregnancy Outcomes Among Individuals With Cerebral Palsy: A Population-Based Cohort Study.BJOG : an international journal of obstetrics and gynaecology · 2026
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  20. The rise and fall of raloxifene use for osteoporosis, 1999-2022.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Article

163 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Andrea S GershonThe Hospital for Sick Children, Toronto, Canada. andrea.gershon@ices.on.ca
Chengning Wang
Jun Guan
Jovonka Vasilevska-Ristovska
Lisa Cicutto
Teresa To

Funding

NRSA Training CoreTL1TR002533 · NCATS · UNIVERSITY OF COLORADO DENVER · PI CICUTTO, LISA · 2018 to 2022
$3.0M
CIHRNCATS NIH HHS TL1 TR002533
6 · The paper itself

Abstract

backgroundAsthma imposes a heavy and expensive burden on individuals and populations. A population-based surveillance and research program based on health administrative data could measure and study the burden of asthma; however, the validity of a health administrative data diagnosis of asthma must first be confirmed.

objectiveTo evaluate the accuracy of population-based provincial health administrative data in identifying adult patients with asthma for ongoing surveillance and research.

methodsPatients from randomly selected primary care practices were assigned to four categories according to their previous diagnoses: asthma, chronic obstructive pulmonary disease, related respiratory conditions and nonasthma conditions. In each practice, 10 charts from each category were randomly selected, abstracted, then reviewed by a blinded expert panel who identified them as asthma or nonasthma. These reference standard diagnoses were then linked to the patients' provincial records and compared with health administrative algorithms designed to identify asthma. Analyses were performed using the concepts of diagnostic test evaluation.

resultsA total of 518 charts, including 160 from individuals with asthma, were reviewed. The algorithm of two or more ambulatory care visits and/or one or more hospitalization(s) for asthma in two years had a sensitivity of 83.8% (95% CI 77.1% to 89.1%) and a specificity of 76.5% (95% CI 71.8% to 80.8%).

conclusionDefinitions of adult asthma using health administrative data are sensitive and specific for identifying adults with asthma. Using these definitions, cohorts of adults with asthma for ongoing population-based surveillance and research can be developed.

Indexed as

AdultAgedAsthmaDatabases, FactualData CollectionFemaleHumansMaleMedical RecordsMiddle AgedPrimary Health CareSensitivity and Specificity

Identifiers

PMID20011725
PMCPMC2807792

What OpenQuestion holds

Textmetadata
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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.