Abstract 10135: Fast Food Consumption Significantly Increases Risk of Hypercholesterolemia Among Afro-Caribbean Youth in Jamaica
Background: Recent studies have documented a high prevalence of cardiovascular disease (CVD) risk factors in youth, but there are limited data on the relationship between these risk factors and lifestyle practices among youth in developing countries. This study evaluated the hypothesis that physical inactivity and frequent fast food consumption increase the odds for CVD risk factors.
Methods: We conducted a cross-sectional analysis of 820 young adults (18-20 years old), evaluated between 2005 and 2007. Trained nurses obtained blood pressure and anthropometric measurements and collected venous blood for measurement of lipids and glucose. Data on physical activity and fast food consumption were obtained by questionnaire. Sex-specific prevalence estimates for CVD risk factors were obtained and logistic regression models were used to obtain adjusted odds ratios for CVD risk factors by levels of physical activity and fast food consumption.
Results: Prevalence estimates for selected CVD risk factors (male: female) were: prehypertension 28.0%: 13.2%, p<0.001; hypertension 2.2%: 0.9%; impaired fasting glucose/diabetes 2.2%: 0.4%, p<0.05; overweight 12.4%: 20.2%, p<0.01; obesity 6.0%: 10.5%, p<0.05; high cholesterol 8.5%: 18.6, p<0.001; high triglycerides 0.5%: 0.7%; high LDL 3.3%: 9.4%, p<0.001; low HDL 28.6%: 62.3%, p<0.001. Approximately 18% of men and 47% of women reported low physical activity (p<0.001), while 23% of men and 21% of women ate at fast food outlets ≥3 times/week. In univariate analyses, physical activity was inversely associated with obesity, high cholesterol and low HDL, while frequency of fast food consumption was positively associated with high cholesterol, high triglycerides and high LDL. Sex differences in obesity, but not dyslipidemia were explained by physical activity level. After adjusting for age, sex and physical activity, frequent fast food consumption remained positively associated with high cholesterol (OR 1.57, p=0.002) and high LDL (OR 1.65, p=0.014), assuming a linear effect.
Conclusions: Frequent fast food consumption increases the odds of dyslipidemia in youth. Interventions that increase availability of healthier alternatives at fast food establishments should be encouraged.
- © 2011 by American Heart Association, Inc.