The Sopot Program of Cardiac Infarct and Stroke Prevention--SopKard 1999-2009 was established for health promotion to decrease cardio-vascular diseases mortality. To serve these purposes a new project SopKard 15 for adolescents was created. The main aim of SopKard 15 is evaluation of health status with particular attention to risk factors of civilization diseases, with chronic kidney disease (CKD) among them. In population of 14-year-old students a complex nephrological examination including medical history, blood pressure measurements, ultrasound examination, and laboratory tests with e.g. albuminuria, urinalysis, and serum creatinine and cystatin C levels was performed. Nephrology part of Program SopKard 15 aspired to early detection of CKD and verifies normal value for this age group.