Observational studyBMJ open2022
Clinical presentation in EMS patients with acute chest pain in relation to sex, age and medical history: prospective cohort study.
Observational study in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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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.
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.
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Who cites it
5 citing papers in PubMed, 6 citations in OpenAlex.
- Clinical Triage of Individuals With Warning Symptoms of Imminent Cardiac Arrest.Circulation. Arrhythmia and electrophysiology · 2026Observational
- Pain assessment and management of adult patients in the Swedish EMS: a nationwide registry study.Scandinavian journal of trauma, resuscitation and emergency medicine · 2025Observational
- Unveiling the Determinants of Prehospital Delay in Patients With Acute Myocardial Infarction: A Cross-Sectional Study.Nursing research and practice · 2025Article
- Prehospital emergency nurses' experiences of caring for patients with suspected acute myocardial infarction: an interview study.BMJ open · 2024Article
- Warning symptoms associated with imminent sudden cardiac arrest: a population-based case-control study with external validation.The Lancet. Digital health · 2023Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo assess symptom presentation related to age, sex and previous medical history in patients with chest pain.
designProspective observational cohort study.
settingTwo-centre study in a Swedish county emergency medical service (EMS) organisation.
participantsUnselected inclusion of 2917 patients with chest pain cared for by the EMS during 2018. DATA ANALYSIS: Multivariate analysis on the association between symptom characteristics, patients' sex, age, previous acute coronary syndrome (ACS) or diabetes and the final outcome of acute myocardial infarction (AMI).
resultsSymptomology in patients assessed by the EMS due to acute chest pain varied with sex and age and also with previous ACS or diabetes. Women suffered more often from nausea (OR 1.6) and pain in throat (OR 2.1) or back (OR 2.1). Their pain was more often affected by palpation (1.7) or movement (OR 1.4). Older patients more often described pain onset while sleeping (OR 1.5) and that the onset of symptoms was slow, over hours rather than minutes (OR 1.4). They were less likely to report pain in other parts of their body than their chest (OR 1.4). They were to a lesser extent clammy (OR 0.6) or nauseous (OR 0.6). These differences were present regardless of whether the symptoms were caused by AMI or not.
conclusionsA number of aspects of the symptom of chest pain appear to differ in unselected prehospital patients with chest pain in relation to age, sex and medical history, regardless of whether the chest pain was caused by a myocardial infarction or not. This complicates the possibility in prehospital care of using symptoms to predict the underlying aetiology of acute chest pain.
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