Background. The objective of the study was to evaluate the prevalence of metabolic syndrome (MS) in male population of the Warmia and Masuria region in Poland according to IDF 2005 recommendations.

Material and methods. 631 men, aged 19–82 years (mean 47 } 14) were examined between Dec 2014 and Dec 2016. Standardized questionnaire was completed by the subjects. Anthropometric measurements were performed. Blood pressure was measured. Blood tests (serum fasting glucose, lipidogram) were performed in 398 men (age: 48 } 13years). Following age groups were identified: < 30YOA, 30–47YOA, 48–64YOA, ≥ 65YOA. Two groups of 398 men were defined: MS+ who fulfilled MS criteria, MS- who did not fulfill MS criteria.

Results. MS was diagnosed in 45.7% of 398 men. There was a significant age-related increase in its prevalence: < 30years of age (YOA) 9.5%, 30–47YOA 38.1%, 48–64YOA 53.2%, ≥ 65YOA 65.8%. Prevalence of components of MS in study group (n = 398) was: waist circumference (≥ 94 cm) in 254 (63.8%); high triglycerides (≥ 150 mg/dl or hypertriglyceridemia treatment) in 146 (36.7%); low HDL (< 40 mg/dl or dyslipidemia treatment) in 83 (20.9%); fasting glucose (≥ 100 mg/dl or diabetes treatment) in 173 (43.5%); elevated blood pressure (SBP ≥ 130 mmHg or DBP ≥ 85 mmHg or treatment of hypertension) in 313 (78.6%).

Conclusions. The prevalence of MS in male population of Warmia and Masuria was 45.7% with significant increase in age. The study confirms the necessity of early prevention of MS in that region of Poland.