Korean Circ J.  2021 Dec;51(12):983-996. 10.4070/kcj.2021.0100.

Global Awareness of Myocardial Infarction Symptoms in General Population: a Systematic Review and Meta-Analysis

• Sharma A
• Vidusha K
• Suresh H
• M. J. A
• Saravanan K
• Dhamania M
• B N
• Wani RT

• KMID: 2523163
• DOI: http://doi.org/10.4070/kcj.2021.0100

Abstract

Background and Objectives
Knowledge about myocardial Infarction (MI) symptoms is crucial because inadequate awareness ensures direct association with patient delay and adverse health events subsequently.
Methods
PRISMA guidelines were followed while conducting the systematic review with PROSPERO number CRD42020219802. An electronic search was conducted comprehensively through 5 databases to find those relevant articles systematically. Prevalence was calculated for each typical symptom of MI separately and subgroup analysis according to continent, country, gender and ethnicity was done. Meta-Analysis was conducted by using statistical software R version 3.4.3. A random-effects model was used.
Results
Studies from 35 different countries with 120,988,548 individuals were included in the final analysis. The prevalence of chest pain awareness was highest, while it was lowest for jaw, back, and neck pain. There was no difference in terms of awareness in males and females. Prevalence of awareness of typical MI symptoms was higher in the Caucasian white, white, and non-Hispanic white groups than in other groups. The prevalence varies from less than 5% in African countries such as Kenya, Tanzania and Asian countries such as Nepal to as high as 90% in Germany.
Conclusions
People are well aware of chest pain as a symptom of MI. However, there is limited knowledge regarding other typical symptoms of MI.

Keyword

Myocardial infarction; Prevalence; Awareness; Meta-analysis

Figure

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  Figure 1 PRISMA flow diagram of the study screening and selection process.GHL = Global Health Library; MI = myocardial infarction; VHL = Virtual Health Library.

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  Figure 2 Global prevalence awareness of all typical symptoms of MI of different countries.MI = myocardial infarction.

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  Figure 3 Prevalence of awareness of chest pain as symptom of MI of different countries with 95% CI stratified by continents.CI = confidence interval; MI = myocardial infarction.

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  Figure 4 Prevalence of awareness of shortness of breath as symptom of MI of different countries with 95% CI stratified by continents.CI = confidence interval; MI = myocardial infarction.

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  Figure 5 Prevalence of awareness of pain and arm discomfort as symptoms of MI of different countries with 95% CI stratified by continents.CI = confidence interval; MI = myocardial infarction.

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  Figure 6 Prevalence of awareness of jaw, neck, and back pain as symptoms of MI in different countries with 95% CI stratified by continents.CI = confidence interval; MI = myocardial infarction.

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  Figure 7 Prevalence of awareness of feeling weak and light-headedness as symptoms of MI in different countries with 95% CI stratified by continents.CI = confidence interval; MI = myocardial infarction.

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