Evidence map›Paper›PMID 29858420›Full record

ArticleBMJ open2018

Quantifying the incidence and burden of herpes zoster in New Zealand general practice: a retrospective cohort study using a natural language processing software inference algorithm.

Nikki M Turner, Jayden MacRae, Mary L Nowlan, Lynn McBain, Maria H Stubbe, Anthony Dowell

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 4 pooled it
0.8field-weighted citation impact, top 26% of its field
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, 4 syntheses or guidelines pooled it, 16 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Nikki M TurnerDepartment of General Practice and Primary Health Care, University of Auckland, Auckland, New Zealand.ORCID 0000-0001-8760-5245
Jayden MacRaeDataCraft Analytics Limited, Wellington, New Zealand.
Mary L NowlanDepartment of General Practice and Primary Health Care, University of Auckland, Auckland, New Zealand.
Lynn McBainDepartment of Primary Health Care and General Practice, University of Otago, Wellington, New Zealand.
Maria H StubbeDepartment of Primary Health Care and General Practice, University of Otago, Wellington, New Zealand.
Anthony DowellDepartment of Primary Health Care and General Practice, University of Otago, Wellington, New Zealand.
University of Otago · NZUniversity of Auckland · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the incidence of primary care presentations for herpes zoster (zoster) in a representative New Zealand population and to evaluate the utilisation of primary healthcare services following zoster diagnosis.

designA cross-sectional retrospective cohort study used a natural language processing software inference algorithm to identify general practice consultations for zoster by interrogating 22 million electronic medical record (EMR) transactions routinely recorded from January 2005 to December 2015. Data linking enabled analysis of the demographics of each case. The frequency of doctor visits was assessed prior to and after the first consultation diagnosing zoster to determine health service utilisation.

settingGeneral practice, using EMRs from two primary health organisations located in the lower North Island, New Zealand.

participantsThirty-nine general practices consented interrogation of their EMRs to access deidentified records for all enrolled patients. Out-of-hours and practice nurse consultations were excluded.

main outcome measuresThe incidence of first and repeated zoster-related visits to the doctor across all age groups and associated patient demographics. To determine whether zoster affects workload in general practice.

resultsOverall, for 6 189 019 doctor consultations, the incidence of zoster was 48.6 per 10 000 patient-years (95% CI 47.6 to 49.6). Incidence increased from the age of 50 years to a peak rate of 128 per 10 000 in the age group of 80-90 years and was significantly higher in females than males (p<0.001). Over this 11-year period, incidence increased gradually, notably in those aged 80-85 years. Only 19% of patients had one or more follow-up zoster consultations within 12 months of a zoster index consultation. The frequency of consultations, for any reason, did not change between periods before and after the diagnosis.

conclusionsZoster consultations in general practice are rare, and the burden of these cases on overall general practice caseload is low.

Indexed as

General PracticeAdolescentAdultAgedAged, 80 and overAge FactorsAlgorithmsCost of IllnessCross-Sectional StudiesFemaleHerpesvirus 3, HumanHerpes ZosterHumansIncidenceMaleMiddle Agedhealth informaticsherpes zosterprimary carevirology

Identifiers

PMID29858420
PMCPMC5988112
OpenAlexW2806716809

What OpenQuestion holds

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LicenceCC BY-NC
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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.