Evidence map›Paper›PMID 37666552›Full record

ArticleBMJ open2023

Temporal trends of hypertrophic cardiomyopathy in Denmark: a nationwide retrospective cohort study.

Christopher Ryan Zörner, Jannik Pallisgaard, Anne-Marie Schjerning, Morten Kvistholm Jensen, Jacob Tønnesen, Lise Da Riis-Vestergaard, Charlotte Middelfart, Peter Vibe Rasmussen, Gunnar Gislason, Morten Lock Hansen

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.2field-weighted citation impact, top 42% 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

4 citing papers in PubMed, 1 citations in OpenAlex.

  1. Article
  2. Observational
  3. Article
  4. Review
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

10 authors at 5 institutions in 2 countries.

Christopher Ryan ZörnerDepartment of Cardiology, Gentofte University Hospital, Hellerup, Denmark christopher.ryan.zoerner@regionh.dk.ORCID 0000-0002-8374-4202
Jannik PallisgaardDepartment of Cardiology, Gentofte University Hospital, Hellerup, Denmark.
Anne-Marie SchjerningDepartment of Cardiology, Rigshospitalet, Kobenhavn, Denmark.
Morten Kvistholm JensenDepartment of Cardiology, Aarhus University Hospital, Aarhus, Denmark.
Jacob TønnesenDepartment of Cardiology, Gentofte University Hospital, Hellerup, Denmark.
Lise Da Riis-VestergaardDepartment of Cardiology, Gentofte University Hospital, Hellerup, Denmark.
Charlotte MiddelfartDepartment of Cardiology, Gentofte University Hospital, Hellerup, Denmark.
Peter Vibe RasmussenDepartment of Cardiology, Gentofte University Hospital, Hellerup, Denmark.
Gunnar GislasonDepartment of Cardiology, Gentofte University Hospital, Hellerup, Denmark.
Morten Lock HansenDepartment of Cardiology, Gentofte University Hospital, Hellerup, Denmark.
Gentofte Hospital · DKAarhus University Hospital · DKBispebjerg Hospital · DKRigshospitalet · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo describe the population of patients diagnosed with hypertrophic cardiomyopathy (HCM) in Denmark and determine temporal trends in incidence and patient characteristics over time.

designNationwide retrospective cohort study.

settingDanish nationwide administrative and clinical registers and databases.

participantsAll patients aged ≥16 years diagnosed with HCM from 2005 to 2018. OUTCOMES MEASURES: Time trends in HCM diagnosis, patient characteristics, comorbidities and pharmacotherapy were identified and tested for significance using the Cochran-Armitage trend test.

results3856 HCM patients were included (median age 68 years (IQR 56-78)). Although there were more males (53%), females were older (72 years vs 63 years) and more likely to have their type of HCM classified as obstructive (54% vs 38%). A consistent rise in HCM cases per year was detected and there was a significant decline in prevalence of heart failure (2005: 20% to 2018: 12%, p<0.001) and ischaemic heart disease (2005: 31% to 2019: 16%, p≤0.001). Prevalence of atrial fibrillation and stroke remained notable and unchanged. Lastly, the rate of hospitalisations decreased over time (2005: 64% to 2016: 46%, p<0.001), while the rate of outpatient follow-up increased (2005: 81% to 2016: 87%, p 0.003).

conclusionThere was a consistent rise in HCM cases with decreasing morbidity burden. Females were older at diagnosis and more likely to have their type of HCM classified as obstructive. The rate of outpatient follow-up is increasing.

Indexed as

Atrial FibrillationCardiomyopathy, HypertrophicAgedDenmarkFemaleHumansMaleOutpatientsRetrospective StudiesAdult cardiologyCardiac EpidemiologyCardiomyopathy

Identifiers

PMID37666552
PMCPMC10481739
OpenAlexW4386415888

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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.