Non-communicable diseases (NCDs) are the leading causes of morbidity, disability, and mortality among the world’s population. In this research, we aim to determine the knowledge about the risk factors for NCDs, as well as socio-demographic differences in the effectiveness of health education materials in disease prevention. Instrument was prepared according to methodological guidelines for population health risks survey (Eurostat, 2018) and knowledge and attitudes related to NCD questionnaire survey. Sample size included 210 participants of both genders (Nmale= 105, Nfemale= 105) systematically selected, residents of Belgrade, Republic of Serbia, who did not have diagnosed chronic non-communicable diseases and used services at primary health care centre Zvezdara. Research results indicate that 27% of all participants had one or more health educational activities in the last six months. More than two thirds of respondents (71%) know that tobacco usage is the leading cause of cardiovascular diseases, but 54,8% know that cause malignant diseases. More than two thirds of respondents know that inadequate nutritional habits, consumption of industrial products and sweets and low vegetable intake cause cardiovascular diseases and more than half of them know that inadequate nutritional habits causes malignant diseases. Statistically significance difference between groups of participants based on level of education are obtained in attitudes towards the effectiveness of health education material in the prevention of malignant diseases (F= 3.396, p .05), diabetes (F= 3.611, p .05) and respiratory diseases (F= 3.483, p .05) and socio-economic differences in the use of printed and video materials in the prevention of NCDs. Effectiveness of health education materials through preventive activities improve health and reduce risks for NCDs.

Leading behavioural risk factors for non communicable diseases (NCD) are smoking, harmful use of alcohol, physical inactivity and unhealthy diet. More than half of population between age 30 and 70 years die annually from NCDs which could be prevented by promotive and preventive measures. Goal of the paper is to determine lifesyle factors related to non communicable diseases and utilization of preventive services in primary health care center Zvezdara in Belgrade. Survey is cross sectional study with sample size of 210 adults randomly selected. The analysis of the survey data was performed using the statistical data processing program SPSS 19.0 for Windows. Lifestyles factors related to NCDs among adult population in Belgrade are smoking (38,1%), alcohol consumption (32,9%), poor eating habits with high salt intake, more than 5g (29%) and inadequate frequency of meals (61%), sedentary lifestyles during working time (27,1%) and during leisure time (20,4%). Only 16,7% of population have moderate physical activity according to WHO recommentations. Preventive services utilized each third men and each fifth women, people with high level of education (p=0.001), professionals (p=0.007) who are living in good social conditions (p=0.000). Preventive services need to be organized more flexible in relation to public opinion using modern methods of health education via electronic services, media and mobile communications.