Evidence map›Paper›PMID 12448873›Full record

ArticleCanadian journal of public health = Revue canadienne de sante publique

Misclassification of income quintiles derived from area-based measures. A comparison of enumeration area and forward sortation area.

Danielle A Southern, William A Ghali, Peter D Faris, Colleen M Norris, P Diane Galbraith, Michelle M Graham, Merril L Knudtson, Alberta Provincial Project for Outcome Assessment in Coronary Heart Disease Investigators

Abstract read
In one paragraph

Article in Canadian journal of public health = Revue canadienne de sante publique. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Article
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  6. Article
  7. Socioeconomic status and anterior epistaxis in adult population.World journal of otorhinolaryngology - head and neck surgery · 2018
    Article
  8. Article
  9. Article
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  11. Article
  12. Prognostic relevance of census-derived individual respondent incomes versus household incomes.Canadian journal of public health = Revue canadienne de sante publique
    Article
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

8 authors.

Danielle A SouthernDepartment of Community Health Sciences, Centre for Health and Policy Studies, University of Calgary, AB.
William A Ghali
Peter D Faris
Colleen M Norris
P Diane Galbraith
Michelle M Graham
Merril L Knudtson
Alberta Provincial Project for Outcome Assessment in Coronary Heart Disease Investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCensus-based methods are often used to estimate socioeconomic status. We assessed the agreement between Forward Sortation Area (FSA) and Enumeration Area (EA) derived income levels for all patients undergoing cardiac catheterization in Alberta, Canada, from 1995-1998.

methodsIncome quintiles were calculated from census data for FSA and EA level. FSA- and EA-derived income measures were compared for misclassification. Both methods were then applied to the data to determine 4-year survival by income grouping in 21,446 patients following catheterization.

resultsThe variability in EA-derived incomes for any given FSA-derived income is large. Only 40% of income quintiles are in agreement between the methods. For EA-based analyses, there is a linear relationship between higher income and lower mortality across all quintiles, while for FSA-based analyses, only the lowest income quintile had significantly higher mortality. DISCUSSION: Assuming that FSA-based methods are more likely to misclassify income compared to EA-based measures, the results for the FSA-based analyses are more likely to be erroneous. EA-derived measures should therefore be used when individual data are not available.

Indexed as

Socioeconomic FactorsAlbertaCardiac CatheterizationCensusesHealth Services ResearchHumansIncomeSurvival Analysis

Identifiers

PMID12448873
PMCPMC6980010

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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.