Evidence map›Paper›PMID 28827435›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2017

Routinely collected data: the importance of high-quality diagnostic coding to research.

Stuart G Nicholls, Sinéad M Langan, Eric I Benchimol

Abstract readComment
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
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  5. Misclassification bias in chronic disease case ascertainment algorithms: a reclassification approach.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2026
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  6. The relationship between COVID-19 and opioid-related emergency department visits in Alberta, Canada: an interrupted time series analysis.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2025
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  12. A scoping review of the methodological approaches used in retrospective chart reviews to validate adverse event rates in administrative data.International journal for quality in health care : journal of the International Society for Quality in Health Care · 2024
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  19. Constructing Epidemiologic Cohorts from Electronic Health Record Data.International journal of environmental research and public health · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Stuart G NichollsChildren's Hospital of Eastern Ontario (CHEO) Research Institute (Nicholls, Benchimol); School of Epidemiology and Public Health, Faculty of Medicine (Nicholls, Benchimol), University of Ottawa, Ottawa, Ont.; London School of Hygiene and Tropical Medicine (Langan), London, UK; Department of Pediatrics (Benchimol), University of Ottawa, Ottawa, Ont. SNicholls@cheo.on.ca.
Sinéad M LanganChildren's Hospital of Eastern Ontario (CHEO) Research Institute (Nicholls, Benchimol); School of Epidemiology and Public Health, Faculty of Medicine (Nicholls, Benchimol), University of Ottawa, Ottawa, Ont.; London School of Hygiene and Tropical Medicine (Langan), London, UK; Department of Pediatrics (Benchimol), University of Ottawa, Ottawa, Ont.
Eric I BenchimolChildren's Hospital of Eastern Ontario (CHEO) Research Institute (Nicholls, Benchimol); School of Epidemiology and Public Health, Faculty of Medicine (Nicholls, Benchimol), University of Ottawa, Ottawa, Ont.; London School of Hygiene and Tropical Medicine (Langan), London, UK; Department of Pediatrics (Benchimol), University of Ottawa, Ottawa, Ont.

Funding

Department of Health NIHR/CS/010/014Wellcome Trust
6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Identifiers

PMID28827435
PMCPMC5566604

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.