Browsing by Author "Todorovic, J. (7003376825)"

Objectives: Physical activity level decreases during young adulthood. As social media are nowadays widely used and are included into many people's daily routines, the interventions on these websites have the possibilities to be integrated into those routines without becoming a burden. The aim of this study was to assess physical activity level among first- and fifth-year medical students and social media intervention with the aim to improve physical activity among them. Study design: Prospective longitudinal study was conducted during October of 2016 at the Faculty of Medicine, University of Belgrade, Serbia. The study included 375 first- and fifth-year students. Methods: At the baseline, students filled in the questionnaire and were asked to join a Facebook discussion group. The intervention consisted of motivation for physical activity through motivational pictures, texts, and discussions. The second assessment was carried out after one month. Based on the reported physical activity level, students were divided into groups: sufficient (>600 metabolic equivalent [MET]-minutes/week) and insufficient physical activity (≤600 MET-minutes/week). Results: Total of 85.4% of students were sufficiently active at the baseline, whereas 90.4% were sufficiently active after one month. Multivariate logistic regression analysis showed that students who were part of the Facebook group (odds ratio [OR]: 3.51, 95% confidence interval [CI]: 1.46–8.43) and students who had sufficient physical activity at the baseline (OR: 5.44, 95% CI: 2.44–12.13) had a higher likelihood to be sufficiently active after one month. Conclusion: Social media are shown to be valuable in health-promoting interventions and can be used for interventions targeting lifestyle change among young adults. © 2019 The Royal Society for Public Health

Background: Cystic pancreatic tumors are increasingly found in medical practice. The aim of this study was to examine the prevalence of misdiagnosis of these lesions and the factors associated with preoperative misdiagnosis. Methods: A retrospective analysis included 66 patients treated in the Clinic for Digestive Surgery, Clinical Center of Serbia, from 1983 to 2013. We included all patients with biopsy-confirmed cystic pancreatic tumors during the study period. We analyzed preoperative parameters, intraoperative and postoperative data of examined patients. Based on the preoperative diagnosis and the biopsy findings, patients were divided into two groups: correct preoperative diagnosis and misdiagnosis. Results: Prevalence of misdiagnosis was 34.85%. Average age was 45.3 ± 16.9 years, 54 (81.8%) were females. Patients with misdiagnosis had significantly higher odds of being older (Odds ratio [OR]: 1.06, 95% Confidence interval [CI]: 1.01–17.86), to present with symptoms of nausea or vomiting (OR: 5.85, 95% CI: 1.49–23.00), to have a clinically palpable tumor (OR: 4.64, 95% CI: 1.21–17.86), and to have received the diagnosis in the period between 1992 and 2003. Conclusion: During the 30-year study period, more than one third of the patients in our study had a misdiagnosis preoperatively. The likelihood of misdiagnosis was higher among older patients, patients with symptoms of nausea or vomiting, patients with a clinically palpable tumor, and patients treated during the period between 1992 and 2003. The decline in the prevalence of misdiagnoses should be expected, due to advances in imaging methods and their availability, which are increasing significantly. © 2020, Springer-Verlag GmbH Austria, part of Springer Nature.