Prevalence of metabolic syndrome in Saudi Arabia - a cross sectional study

Background: The evaluation of metabolic syndrome in a society predisposed to the diabetes mellitus epidemic opens a new avenue to understanding this rapidly growing global metabolic problem. Although Saudi Arabia reports one of the highest prevalence levels of obesity and diabetes, a very limited number of epidemiological studies have examined the prevalence of metabolic syndrome. Therefore, the main aim of the current study was to estimate the prevalence of metabolic syndrome and its risk factors among the adult Saudi population in comparison to other countries. Methods: A total of 12,126 Saudi subjects were randomly recruited from the 13 administrative regions, and evaluated for metabolic syndrome and its risk factors. This exercise was carried out by trained physicians, through clinical evaluations and overnight fasting blood glucose and lipid profile measurements. Both the International Diabetes Federation (IDF) and modified National Cholesterol Education Program and Adult Treatment Panel III (NCEP ATP III) Criteria were employed, and subjects with metabolic syndrome were identified using country-specific waist circumference cutoff values. Results: The prevalence of metabolic syndrome in Saudi Arabia was found to be 39.8% (34.4% in men and 29.2% in women) and 31.6% (45.0% in men and 35.4% in women), according to the NCEP ATP III and IDF criteria, respectively. Metabolic syndrome was also observed to be more prevalent among men and older subjects. The most frequently observed component of metabolic syndrome was found to be low levels of high-density lipoprotein (HDL), followed by abdominal obesity. The most significant risk factors in the studied cohort included age >= 45, smoking history, low educational level, and living in urban areas. Conclusions: This study shows a high prevalence of metabolic syndrome in Saudi Arabia, and thereby warrants urgent implementation of preventive health care strategies to reduce both morbidity and mortality related to this medical problem.