Comparison of Body Mass Index, Waist-to-hip Ratio and Waist-to- height Ratio as Predictor of the Severity of Coronary Artery Disease Based on Gensini Scoring System on Coronary Angiography

Abstract

OBJECTIVE: This study aimed to determine the correlation of body mass index (BMI), waist-to-hip ratio (WHR) and waist-to-height ratio (WHtR) with the severity of coronary artery disease (CAD) based on the Gensini scoring system on coronary angiography among Filipinos. METHODOLOGY: This was a cross-sectional, analytical study conducted at Perpetual Succour Hospital–Cebu Heart Institute. It included all admitted Filipino patients who were suspected to have CAD with indications to undergo coronary angiography from March 1, 2014 to September 30, 2014. RESULTS: A total of 101 patients were included in the study. The mean BMI was 26.83 kg/m2, with most patients (45.5%) having normal BMI. Forty percent were overweight, 7.9% were obese and 6% were very obese. The mean WHR was 0.98 and 97% of patients had a high ratio. The mean WHtR was 0.59 and 96% had a high ratio. Fifty-six percent had significant CAD. The mean Gensini Score was 41.14 and 50.5% of patients had a score of >20. BMI showed no correlation with the severity of CAD by Gensini score (p=0.355). There was a trend towards a weak positive correlation between WHR and Gensini score (r=0.194; p=0.052). WHtR did not show a significant relationship with severity of CAD based on Gensini score (p=0.801). CONCLUSION: BMI, WHR and WHtR did not show significant correlations with the presence of significant CAD. However, there was a trend towards a weak positive correlation between WHR and CAD severity by Gensini score; hence, it may still be useful as a predictor for CAD severity among Filipinos. KEYWORDS: Anthropometric indices, body mass index, waist-to-hip ratio, waist-to-height ratio, coronary artery disease, Gensini score.