Evidence map›Paper›PMID 33091194›Full record

ArticlePharmacoepidemiology and drug safety2021

Validation of cardiovascular outcomes and risk factors in the Clinical Practice Research Datalink in the United Kingdom.

Alejandro Arana, Andrea V Margulis, Cristina Varas-Lorenzo, Christine L Bui, Alicia Gilsenan, Lisa J McQuay, Maria Reynolds, Cristina Rebordosa, Billy Franks, Stefan de Vogel and 2 more

Abstract read
In one paragraph

Article in Pharmacoepidemiology and drug safety, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
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  5. Article
  6. Tuberculosis and Increased Incidence of Cardiovascular Disease: Cohort Study Using United States and United Kingdom Health Records.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025
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  8. Review
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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

12 authors.

Alejandro AranaPharmacoepidemiology and Risk Management, RTI Health Solutions, Barcelona, Spain.ORCID 0000-0002-1593-3124
Andrea V MargulisPharmacoepidemiology and Risk Management, RTI Health Solutions, Barcelona, Spain.
Cristina Varas-LorenzoPharmacoepidemiology and Risk Management, RTI Health Solutions, Barcelona, Spain.
Christine L BuiPharmacoepidemiology and Risk Management, RTI Health Solutions, Research Triangle Park, North Carolina, USA.ORCID 0000-0002-3568-3097
Alicia GilsenanPharmacoepidemiology and Risk Management, RTI Health Solutions, Research Triangle Park, North Carolina, USA.ORCID 0000-0002-9266-1417
Lisa J McQuayPharmacoepidemiology and Risk Management, RTI Health Solutions, Research Triangle Park, North Carolina, USA.
Maria ReynoldsBiostatistics, RTI Health Solutions, Research Triangle Park, North Carolina, USA.
Cristina RebordosaPharmacoepidemiology and Risk Management, RTI Health Solutions, Barcelona, Spain.
Billy FranksAstellas, Leiden, Netherlands.
Stefan de VogelAstellas, Leiden, Netherlands.
Kwame AppentengAstellas, Northbrook, Illinois, USA.
Susana Perez-GutthannPharmacoepidemiology and Risk Management, RTI Health Solutions, Barcelona, Spain.ORCID 0000-0001-5798-3691

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeStrategies to identify and validate acute myocardial infarction (AMI) and stroke in primary-care electronic records may impact effect measures, but to an unknown extent. Additionally, the validity of cardiovascular risk factors that could act as confounders in studies on those endpoints has not been thoroughly assessed in the United Kingdom Clinical Practice Research Datalink's (CPRD's) GOLD database. We explored the validity of algorithms to identify cardiovascular outcomes and risk factors and evaluated different outcome-identification strategies using these algorithms for estimation of adjusted incidence rate ratios (IRRs).

methodsFirst, we identified AMI, stroke, smoking, obesity, and menopausal status in a cohort treated for overactive bladder by applying computerized algorithms to primary care medical records (2004-2012). We validated these cardiovascular outcomes and risk factors with physician questionnaires (gold standard for this analysis). Second, we estimated IRRs for AMI and stroke using algorithm-identified and questionnaire-confirmed cases, comparing these with IRRs from cases identified through linkage with hospitalization/mortality data (best estimate).

resultsFor AMI, the algorithm's positive predictive value (PPV) was >90%. Initial algorithms for stroke performed less well because of inclusion of codes for prevalent stroke; algorithm refinement increased PPV to 80% but decreased sensitivity by 20%. Algorithms for smoking and obesity were considered valid. IRRs based on questionnaire-confirmed cases only were closer to IRRs estimated from hospitalization/mortality data than IRRs from algorithm-identified cases.

conclusionsAMI, stroke, smoking, obesity, and postmenopausal status can be accurately identified in CPRD. Physician questionnaire-validated AMI and stroke cases yield IRRs closest to the best estimate.

Indexed as

Myocardial InfarctionDatabases, FactualHumansPredictive Value of TestsRisk FactorsUnited Kingdomacute myocardial infarctionelectronic recordinformation biasmenopauseobesitypharmacoepidemiologysmokingstrokevalidity

Identifiers

PMID33091194
PMCPMC7821285

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Registered trials

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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.