Relationship between Body Mass Index and Waist to Hip Ratio in Patients with Coronary Heart Disease

Abstract

Background: Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. As the highest BMI category, obesity is known to be one of the risk factors for coronary heart disease (CHD). Obesity increases the accumulation of excess body fat which in turn increases waist to hip ratio (WHR). Several studies have reported that WHR is associated with an increased risk of CHD. This study aimed to determine the relationship between BMI and WHR in patients with CHD.

Subjects and Method: This was a cross-sectional study conducted at Gatot Soebroto Army Hospital, in January to May 2015. A random sample of 90 patients with CHD were selected for this study. The dependent variable was WHR. The cutoff value for high risk of CHD is 85 cm (0.90) for Asian men and 75\u201380 cm (0.79\u20130.85) for Asian women. This study used 80 cm WHR cutoff point to make dichotomous variable for women. The independent variable was BMI. According to the Asian-Pacific, BMI are categorized into four groups: underweight (<18.5 kg/m2), normal weight (18.5\u201322.9 kg/m2), overweight (23\u201324.9 kg/m2), and obese (\u226525 kg/m2). This study used overweight cutoff points to make dichotomous variable. The data were analyzed by chi-square with odd ratio (OR) has the measure of association.

Results: There was a positive relationship between WHR and BMI, and it was statis�ti�ca�lly significant (OR= 8.25; CI 95%= 2.89 to 23.48; p <0.001).

Conclusion: WHR is positively associated with BMI patients with CHD.