Background: Regular physical activity supports healthy behavior and contributes to the reduction of preventable diseases. Students in their social transition period are the ideal groups for interventions. The higher education period, associated with demanding changes and poor time management, results in a low level of physical activity. In this age, social media usually are a suitable channel of communication and multicomponent interventions are the most desirable. It has not been sufficiently investigated how effective a Web-based approach is among university students when it comes to physical activity in the long-term period. We combined a Web-based approach with motivational interviews and tested these two interventions together and separate to assess their impact on improving the physical activity of medical students 1 year after the intervention. Methods: All 514 first-year students at the Faculty of Medicine in Belgrade were invited to fill in a baseline questionnaire. Also, they underwent measurement of weight, height and waist circumference. After that, students selected a 6 months intervention according to their preference: Intervention through social media (Facebook) (Group 1) or combined with a motivational interview (Group 2). Group 3 consisted of students without any intervention. One year after completion of the 6 months intervention period, all students were invited to a second comprehensive assessment. Analyses were performed employing a wide range of statistical testing, including direct logistic regression, to identify determinants of increased physical activity measured by an average change of Metabolic Equivalent of Task (MET). This outcome measure was defined as the difference between the values at baseline and one year after completion of the 6 months intervention period. Results: Due to a large number of potential determinants of the change of MET, three logistic regression models considered three groups of independent variables: basic socio-demographic and anthropometric data, intervention and willingness for change, and health status with life choices. The only significant model comprised parameters related to the interventions (p < 0.001). It accurately classified 73.5% of cases. There is a highly significant overall effect for type of intervention (Wald = 19.5, df = 2, p < 0.001) with high odds for the increase of physical activity. Significant relationship between time and type of intervention also existed (F = 7.33, p < 0.001, partial η² = 0.091). The influence of both factors (time and interventions) led to a change (increase) in the dependent variable MET. Conclusion: Our study confirmed the presence of low-level physical activity among students of medicine and showed that multicomponent interventions have significant potential for positive change. The desirable effects of the Web-based intervention are higher if an additional booster is involved, such as a motivational interview.

Background: Exclusive breastfeeding is essential for early childhood development, although the use of adaptive milk formulas instead of breastfeeding is widespread nowadays. This study aimed to examine the prevalence of exclusively breastfed infants under the age of 6 months in non-Roma and Roma population and factors associated with this practice.Materials and Methods: This study is a secondary analysis of the Serbian Multiple Indicator Cluster Survey investigating non-Roma and Roma infants under the age of 6 months. The study included mothers of 321 non-Roma and 164 Roma infants younger than 6 months. Univariate and multivariate logistic regression served to analyze factors associated with the practice of exclusive breastfeeding in both populations.Results: The prevalence of exclusive breastfeeding was almost the same among mothers in both non-Roma and Roma population (13.3 vs. 13%, p = 0.910). Exclusive breastfeeding was significantly more often (p < 0.001) among wealthier women, women whose newborns were over 2,500 g on birth, multipara, and women who had not established menstrual cycle among both populations. Living outside the capital significantly diminishes the chance for exclusively breastfed infants in the non-Roma community (Vojvodina: OR 0.16, CI 95% 0.03–0.92; eastern Serbia: OR 0.02, CI 95% 0.01–0.35) as well as living in the rural area (urban: OR 10.35, CI 95% 1.94–55.28). Unexpectedly, in the non-Roma population, not staying in the same room with the newborn in the maternity ward increases the chance for the baby to be exclusively breastfed (OR 7.19, CI 95% 1.80–28.68). The same pattern has been observed in Roma population. Non-Roma mothers multipara are more likely to exclusively breastfeed their children than primipara (OR 7.78, CI 95% 1.09–20.93), while among Roma mothers, the inverse association has been found although not significant (OR 0.42, CI 95% 0.14–1.23). Attending a childbirth preparation program more than 18 times increases the chances of infants being exclusively breastfed (OR 18.65, CI 95% 1.34–53.67). In the Roma population, there was no single woman that attended a childbirth preparation program.Conclusion: The pattern of exclusive breastfeeding significantly differs between non-Roma and Roma populations. Preventive work should have focus on strengthening support to mothers and medical staff in maternity wards.

The use of preventive health services is a long-term health investment due to its potential to help individuals to take care of their health. This study aimed to explore the availability and performance of health services in primary health care (PHC) in the domain of general practice (GP), pediatrics, and gynecology, as well as to analyze the influence of sociodemographic and health determinants on the utilization of preventive health services. This descriptive study used data from the National Health Insurance Fund and the Statistical Office of the Republic of Serbia for 2015 and included 149 independent PHC units. The relationship between the utilization of preventive services and sociodemographic and health characteristics of the population was analyzed by bivariate and multivariate linear regression models. The higher health expenditure per capita and noncommunicable diseases mortality rate were, the more preventive health services were provided by a chosen GP. Children with a higher completion rate of primary school (p = 0.024), higher health expenditure (p = 0.017), and higher life expectancy at birth (p = 0.041) had more preventive health services. The fertility rate was positively associated with the number of preventive health services per 1000 women (p = 0.033). Our findings should serve as a starting point for where efforts should be made to achieve better health outcomes.

The lower rates of COVID-19 vaccination in Western Balkans countries could be partially explained by societal distrust of its citizens, jeopardizing the sustainability of COVID-19 vaccination programs. The aim of the study was to determine the level and predictors of societal trust in five countries of the region. Using an online questionnaire, data were obtained from 1157 respondents from Albania, Bosnia and Herzegovina, Montenegro, North Macedonia, and Serbia. The instrument included a socio-demographic questionnaire, a measure of vaccination behavior, and a scale measuring societal trust. Being a significant determinant of the COVID-19 vaccination behavior in all countries, societal trust considerably varied from country to country (F (24, 4002) = 7.574, p < 0.001). It was highest in North Macedonia (Mean = 3.74, SD = 0.99), and lowest in Albania (Mean = 3.21, SD = 1.03). Younger, female, less religious, and higher educated tended to have more pronounced societal trust in Serbia. In North Macedonia, younger age and lower health literacy predicted societal trust, while in Bosnia and Herzegovina, educational level was the single predictor. In Montenegro and Albania, higher societal trust was significantly predicted by lower health literacy only. The results provide evidence that the determinants of societal trust in Western Balkans vary across countries, indicating the need for different approaches in communication campaigns.

Problematic internet use (PIU) can be defined as internet use that is not well-controlled. The aim of this study was to examine the validity and reliability of the Problematic Internet Use Questionnaire Short Form (PIUQ-SF-6) among Serbian medical students and to examine the prevalence of students at risk of problematic internet use and social, lifestyle, and mental health characteristics associated with it. We conducted a cross-sectional study that included a total of 735 medical students (66.8% female and 33.2% male) attending classes in Social Medicine during the 2023/2024 school year. The instrument used was a questionnaire developed based on the questionnaires in similar studies. A total of 160 students (21.8%) were in the problematic internet use group, and 575 were in the non-problematic internet use group. Multivariate logistic regression analysis with PIU as the outcome variable showed an association between PIU and the Patient Health Questionnaire−9 score (OR: 1.10, 95% CI: 1.03–1.16) and impulsivity (OR: 1.07, 95% CI: 1.05–1.10). The mental health of medical students, as future health professionals, should be promoted through tailored interventions that are widely accessible and long-lasting.