Hyperhomocysteinemia, coronary heart disease, and diabetes mellitus as predicted by various definitions for metabolic syndrome in a hypertensive Saudi population.
OBJECTIVE
From the emergence of different definitions of metabolic syndrome (MS) we aim to determine the prevalence of such a condition among hypertensive Saudi population and to identify which definition can best assess the risk of hyperhomocysteinemia, coronary heart disease (CHD), and diabetes mellitus.


METHODS
In this cross-sectional study, we studied 581 hypertensive Saudis, aged 21-70, at the King Abdul-Aziz University Hospital, from June 2005 to December 2005 Each participant completed the questionnaire and underwent a complete physical examination. Metabolic parameters were measured using routine laboratory procedures and homocysteine using HPLC by the electrochemical detection method.


RESULTS
According to the International Diabetes Federation (IDF) definition we diagnosed 222 males and 256 females. There is an increased risk for hyperhomocystenemia using the Adult Treatment Panel III (ATPIII) guidelines (odds ratio [OR] 3.30, 95% confidence interval [CI] 0.87-12.56; p=0.08) compared to IDF (OR 0.59, CI 0.17-2.10; p=0.41) and WHO (OR 0.45, CI 0.16-1.25; p=0.12); increased risk for probable CHD in patients with MS by WHO (OR 2.17, CI 1.11-4.25; p=0.02) compared to ATPIII (OR 2.14, CI 1.05-4.35; p=0.035) and IDF (OR 0.81, CI 0.37-1.78; p=0.6); risk of DM is highest with IDF (OR 13.07, CI 1.66-102.94; p=0.015).


CONCLUSIONS
There is a high prevalence of MS among hypertensive Saudis regardless of definition used; it is most prevalent using the IDF definition as well as the risk for diabetes Patients diagnosed with ATPIII guidelines have greater risk of hyperhomocysteinemia. We recommend the WHO definition for Arabs since it predicts increased risk for CHD.
Al-Daghri
Nasser M
NM
College of Science Biochemistry Department, King Saud University, PO Box 2455, Riyadh 11451, Kingdom of Saudi Arabia. aldaghri2000@hotmail.com
D000328:Adult; D017677:Age Distribution; D000368:Aged; D002851:Chromatography, High Pressure Liquid; D015897:Comorbidity; D016001:Confidence Intervals; D003327:Coronary Disease / Q000175:diagnosis / Q000453:epidemiology*; D003430:Cross-Sectional Studies; D003920:Diabetes Mellitus / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D020138:Hyperhomocysteinemia / Q000175:diagnosis / Q000453:epidemiology*; D006973:Hypertension / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D024821:Metabolic Syndrome / Q000175:diagnosis / Q000453:epidemiology*; D008875:Middle Aged; D016017:Odds Ratio; D011237:Predictive Value of Tests; D015995:Prevalence; D011336:Probability; D018570:Risk Assessment; D012529:Saudi Arabia / Q000453:epidemiology; D012720:Severity of Illness Index; D017678:Sex Distribution; D011795:Surveys and Questionnaires; D015996:Survival Rate