title: Metabolic syndrome defined by modified International Diabetes Federation criteria and type 2 diabetes mellitus risk: a 9-year follow-up among the aged in Finland.
abstract: The aim was to analyse the relationship between metabolic syndrome and type 2 diabetes mellitus risk among the aged. This was a prospective population-based study, with a 9-year follow-up. All subjects of the municipality of Lieto in Finland aged ≥64 in 1998-1999 with no type 2 diabetes mellitus at baseline (n=1117) were included. Hazard ratios for incident type 2 diabetes mellitus predicted by metabolic syndrome (defined by modified International Diabetes Federation criteria) were estimated. During the 9-year follow-up, a total of 69 participants (6.2%) developed type 2 diabetes mellitus. After multivariable adjustment (age, gender, smoking, frequency of exercise, cardiovascular disease and low-density lipoprotein-cholesterol), type 2 diabetes mellitus (hazard ratio, 95% confidence interval) (3.15, 1.89-5.25, p < 0.001) was more common in subjects with metabolic syndrome compared to subjects without it. Evaluating metabolic syndrome components individually, impaired fasting glucose (5.09, 2.64-9.82, p < 0.001) and obesity (1.71, 1.05-2.97, p = 0.034) predicted a higher incidence of type 2 diabetes mellitus. Our findings suggest that metabolic syndrome predicts onset of type 2 diabetes mellitus even in late life. Impaired fasting glucose and obesity should be targets for primary prevention of diabetes among the aged with metabolic syndrome.
authors.affiliation: Institute of Clinical Medicine, Family Medicine, Lemminkäisenkatu 1, FI-20014 University of Turku, Turku, Finland. majosa@utu.fi
authors.forename: Marika
authors.initials: M
authors.lastname: Salminen
authors.forename: Marikka
authors.initials: M
authors.lastname: Kuoppamäki
authors.forename: Tero
authors.initials: T
authors.lastname: Vahlberg
authors.forename: Ismo
authors.initials: I
authors.lastname: Räihä
authors.forename: Kerttu
authors.initials: K
authors.lastname: Irjala
authors.forename: Sirkka-Liisa
authors.initials: SL
authors.lastname: Kivelä
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001786:Blood Glucose; D002318:Cardiovascular Diseases / Q000453:epidemiology; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology*; D004812:Epidemiologic Methods; D005260:Female; D005387:Finland / Q000453:epidemiology; D006801:Humans; D008297:Male; D024821:Metabolic Syndrome / Q000453:epidemiology*; D009765:Obesity / Q000453:epidemiology
chemical_list: D001786:Blood Glucose