The Effectiveness of Modified Coronary Risk Chart (mCRC) and Thai CV Risk Score for Cardiovascular Risk Evaluation in Thai Population
Cardiovascular Risk Evaluation in the Thai Population
Keywords:
Cardiovascular Risk Assessment, Modified Coronary Risk Chart, Thai CV Risk Score, Sensitivity, SpecificityAbstract
Thailand has developed two cardiovascular risk assessment tools: Modified Coronary Risk Chart (mCRC) and Thai CV Risk Score. Despite both being developed specifically for Thai populations, studies comparing their effectiveness show conflicting results. This cross-sectional and retrospective study compared both tools by examining 240 acute myocardial infarction patients aged 35-65 years from 2020-2024 against 240 controls at Phichit Hospital. Results showed Thai CV Risk Score had high specificity of 64.2% but low sensitivity of 54.2%, with positive predictive value of 60.2%, negative predictive value of 58.3%, and overall accuracy of 59.2%. Conversely, mCRC demonstrated high sensitivity of 95.8% but low specificity of 12.9%, with positive predictive value of 52.4%, negative predictive value of 75.6%, and overall accuracy of 54.4%. The tools showed poor agreement (Kappa = 0.088, 95%CI: 0.044-0.132), with mCRC tending to assess risk higher than Thai CV Risk Score. This study concludes that mCRC is suitable for initial screening, while Thai CV Risk Score is appropriate for risk confirmation. Using both tools together may enhance cardiovascular risk assessment effectiveness in the Thai population
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