(1) To estimate the prevalence of diseases and risk factors with high public health impact and to identify differences according to socio-demographic characteristics, region of residence as well as changes over time;
(2) To analyze data on medication use and health care services utilization with regard to aspects of treatment effectiveness and quality of care;
(3) To investigate the association between mental health, physical health, and health-related behavior;
(4) To study patterns and determinants of co- and multimorbidity in the population 65 years and older in association with functional capacity levels, disability and health-related quality of life;
(5) To analyze allergic sensitization patterns and associations with manifest allergic disease in the population;
(6) To assess nutritional health risks and states of nutritional deficiency based on semiquantitative assessment of dietary habits and serum concentrations of various micronutrients (25-hydroxyvitamin D, vitamin B 12, iron, and ferritin in serum; serum and erythrocyte folate; urinary sodium excretion);
(7) To estimate iodine intake at the population level based on urinary iodine excretion;
(8) To examine individual changes in health status and cardiometabolic risk factors (e. g. body mass index; glycosylated hemoglobin A1c, serum lipids) over time.