Evidence map›Paper›PMID 30908785›Full record

ArticlePharmacoepidemiology and drug safety2019

The accuracy of date of death recording in the Clinical Practice Research Datalink GOLD database in England compared with the Office for National Statistics death registrations.

Arlene M Gallagher, Daniel Dedman, Shivani Padmanabhan, Hubert G M Leufkens, Frank de Vries

Abstract read
In one paragraph

Article in Pharmacoepidemiology and drug safety, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing 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

58 citing papers in PubMed.

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  14. Data Resource Profile Update: CPRD GOLD.International journal of epidemiology · 2025
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  16. Observational
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Arlene M GallagherClinical Practice Research Datalink, Medicines and Healthcare products Regulatory Agency, London, UK.ORCID 0000-0002-7507-4923
Daniel DedmanClinical Practice Research Datalink, Medicines and Healthcare products Regulatory Agency, London, UK.
Shivani PadmanabhanClinical Practice Research Datalink, Medicines and Healthcare products Regulatory Agency, London, UK.
Hubert G M LeufkensUtrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.
Frank de VriesUtrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIt is not clear whether all deaths are recorded in the Clinical Practice Research Datalink (CPRD) or how accurate a recorded date of death is. Individual-level linkage with national data from the Office for National Statistics (ONS) and Hospital Episode Statistics (HES) in England offers the opportunity to compare death information across different data sources.

methodsAge-standardised mortality rates (ASMRs) standardised to the European Standard Population (ESP) 2013 for CPRD were compared with figures published by the ONS, and crude mortality rates were calculated for a sample population with individual linkage between CPRD, ONS, and HES data. Agreement on the fact of death between CPRD and ONS was assessed and presented over time from 1998 to 2013.

resultsThere were 33 997 patients with a record of death in the ONS data; 33 389 (98.2%) of these were also identified in CPRD. Exact agreement on the death date between CPRD and the ONS was 69.7% across the whole study period, increasing from 53.4% in 1998 to 78.0% in 2013. By 2013, 98.8% of deaths were in agreement within ±30 days.

conclusionsFor censoring follow-up and calculating mortality rates, CPRD data are likely to be sufficient, as a delay in death recording of up to 1 month is unlikely to impact results significantly. Where the exact date of death or the cause is important, it may be advisable to include the individually linked death registration data from the ONS.

Indexed as

Data AccuracyDeath CertificatesDatabases, FactualData ManagementInformation Storage and RetrievalPrimary Health CareRegistriesUnited KingdomCPRDdata linkagedeathHESmortalityONSpharmacoepidemiologyUKvalidation

Identifiers

PMID30908785
PMCPMC6593793

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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.