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June 12, 2026European Journal of Preventive CardiologyOpen Access

Temporal trends in profile of patients with acute myocardial infarction in Norway, 2013-2021

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Key result

NSTEMI clinical severity decreases over time while STEMI severity stagnates or worsens.

  • n=74,677

Why the study?

No prior study in Norway had explored temporal changes in AMI characteristics and severity amidst declining AMI incidence and improved survival.

Population

74 677 incident AMI patients aged ≥20 years in Norway

Comparison

Temporal changes from 2013 to 2021

Design

Registry-based observational study

Authors

ALA T H LongvaCLC W LeerinkKHK K Halle

Discussion

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Overview

Declining CS rates in AMI may reflect care advances; leaves open drivers amid shifting risk profiles.

Key Points

  • To examine temporal changes in characteristics and severity of acute myocardial infarction (AMI) patients from 2013 to 2021 in Norway.
  • Included 74,677 incident AMI patients aged ≥20 years registered in the Norwegian Myocardial Infarction Registry from 2013-2021.
  • Collected data on age, sex, smoking status, BMI, comorbidities, and AMI severity indicators.
  • Analyzed temporal trends using Poisson regression adjusted for age and sex.
  • Current smoking declined among NSTEMI and STEMI patients (-2.2% and -1.6%, respectively), while obesity increased (+5.5% NSTEMI, +5.0% STEMI).
  • Decreases in stroke prevalence were noted for both NSTEMI (-2.7%) and STEMI (-3.1%), while diabetes mellitus increased for NSTEMI (+1.9%) and STEMI (+3.4%).
  • Most severity indicators declined for NSTEMI but showed little change for STEMI, with increased need for resuscitation during hospitalization (+2.4%) among STEMI patients.

Study Design

Type

Observational (n=74,677)

Multicenter

Yes

Structured PICO

P
Population
74,677 incident acute myocardial infarction patients aged ≥20 years registered in the Norwegian Myocardial Infarction Registry between 2013 and 2021.
O
Outcome
Temporal changes in AMI characteristics and severity indicators (resuscitation, non-invasive ventilation, pulmonary oedema, cardiogenic shock, major ventricular rhythm disturbances, AV block, pacemaker implantation) from 2013 to 2021

Between 2013 and 2021 in Norway, clinical severity indicators decreased among NSTEMI patients but remained stable or worsened among STEMI patients, highlighting divergent temporal patterns.

Cite This Study

Longva et al. (2026) conducted an observational in Acute myocardial infarction (AMI) (n=74,677). Temporal trends (2013-2021) vs. Earlier years (2013) was evaluated on Temporal changes in AMI characteristics and severity indicators. From 2013 to 2021, clinical severity indicators such as cardiogenic shock decreased among NSTEMI patients, whereas they changed little or worsened among STEMI patients.

synapsesocial.com/papers/6a2bd1386550ea4541ffe964https://doi.org/10.1093/eurjpc/zwag249.059
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Trends in hospitalisation for acute myocardial infarction in Ireland, 1997–20082012 · 53 citations
  2. 2Favourable trends in incidence of AMI in Norway during 2001–2009 do not include younger adults: a CVDNOR project2013 · 86 citations
  3. 3Eighteen-year trends in cardiovascular risk and mortality in patients with acute coronary syndrome without ST-segment elevation2025
  4. 4Temporal trends in acute myocardial infarction presentation and association with use of cardioprotective drugs: a nationwide registry-based study2017 · 24 citations
  5. 5Characteristics and Outcomes of Patients with Acute Myocardial Infarction at Non-PCI Capable Hospitals in 2007 and in 20142015 · 1 citations