Dragan Spaić

Dr. Dragan Spaić

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 August 2025 in Journal of Medical Internet Research
Verified
Journal Article
Open access
DSDragan Spaić
Dragan Spaić
ZBZoran Bukumiric
Zoran Bukumiric
NRNina Rajovic
Nina Rajovic
KMKsenija Markovic
Ksenija Markovic
MSMarko Savic
Marko Savic
Natasa MilicNatasa Milic
Natasa Milic
Background: The concept of flipped classrooms (FCs) is gaining attention in medical education as it aligns with the digital age’s demand for more interactive and accessible learning experiences. By shifting the delivery of instructional content outside of the classroom, an FC allows students to engage with materials at their own pace, thereby maximizing in-class time for discussions, problem-solving, and other active learning activities. Objective: This study aimed to conduct a comprehensive meta-analysis to appraise the comparative effectiveness of FC instruction in contrast to traditional pedagogical modalities, with a particular focus on postepidemic analyses within specific subfields of medical education. Methods: The PubMed, Web of Science, and Scopus databases were systematically searched for studies comparing academic outcomes between the FC and traditional learning approaches in medical education. The primary outcome measures were knowledge assessment and students’ satisfaction. The standardized mean difference (SMD) was used as a measure of the overall effect, and subgroup analysis was performed according to the study design (randomized controlled trial [RCT] vs observational). The Cochran Q test and Baujat plots were used to estimate heterogeneity, coupled with I2. Highly influential studies were identified; sensitivity analyses and metaregression were performed. Results: In total, 141 studies were included in the systematic review; 127 (90.1%) studies with 21,171 participants were included in the meta-analysis of students’ knowledge assessment, of which 37 (29.1%) were RCTs. FCs had significantly better outcomes than the traditional method in knowledge test scores in both observational studies and RCTs (SMD 0.90, 95% CI 0.59-1.20, P<.001 and SMD 0.93, 95% CI 0.65-1.22, P<.001, respectively). There was substantial heterogeneity among included studies (I2=95.2%, τ2=1.614; P<.001). The funnel plot showed high asymmetry with significant small study effects (P<.001). However, the effect estimate remained robust to the exclusion of highly influential studies in the sensitivity analysis. In total, 27 (21.3%) studies with a total of 5842 participants reported students’ satisfaction. Higher student satisfaction scores for FCs were demonstrated in contrast to control groups (SMD 0.82, 95% CI 0.45-1.19; P<.001). There was substantial heterogeneity among the included studies (I2=97.8%, τ2=0.913; P<.001) but no evidence for publication bias, and no studies were found to be influential. Conclusions: The FC method is associated with better knowledge achievement and greater student satisfaction than the traditional approach in medical education, paving the way for its broader integration into medical school curricula. However, it is essential to consider various factors, such as the availability of resources, faculty readiness, and student preferences when implementing any new educational approach. This study holds promise for advancing medical education by exploring innovative teaching methodologies that leverage technology to enhance learning outcomes.

8 March 2021 in BioMedInformatics
Verified
Journal Article
Open access
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APAndrija Pavlovic
Andrija Pavlovic
NRNina Rajovic
Nina Rajovic
JSJasmina Pavlovic Stojanovic
Jasmina Pavlovic Stojanovic
DADebora Akinyombo
Debora Akinyombo
MUMilica Ugljesic
Milica Ugljesic
Natasa MilicNatasa Milic
Natasa Milic
Introduction: Potential benefits of implementing an electronic health record (EHR) to increase the efficiency of health services and improve the quality of health care are often obstructed by the unwillingness of the users themselves to accept and use the available systems. Aim: The aim of this study was to identify factors that influence the acceptance of the use of an EHR by physicians in the daily practice of hospital health care. Material and Methods: The cross-sectional study was conducted among physicians in the General Hospital Pancevo, Serbia. An anonymous questionnaire, developed according to the technology acceptance model (TAM), was used for the assessment of EHR acceptance. The response rate was 91%. Internal consistency was assessed by Cronbach’s alpha coefficient. A logistic regression analysis was used to identify the factors influencing the acceptance of the use of EHR. Results: The study population included 156 physicians. The mean age was 46.4 ± 10.4 years, 58.8% participants were female. Half of the respondents (50.1%) supported the use of EHR in comparison to paper patient records. In multivariate logistic regression modeling of social and technical factors, ease of use, usefulness, and attitudes towards use of EHR as determinants of the EHR acceptance, the following predictors were identified: use of a computer outside of the office for reading daily newspapers (p = 0.005), EHR providing a greater amount of valuable information (p = 0.007), improvement in the productivity by EHR use (p < 0.001), and a statement that using EHR is a good idea (p = 0.014). Overall the percentage of correct classifications in the model was 83.9%. Conclusion: In this research, determinants of the EHR acceptance were assessed in accordance with the TAM, providing an overall good model fit. Future research should attempt to add other constructs to the TAM in order to fully identify all determinants of physician acceptance of EHR in the complex environment of different health systems.

Verified
Journal Article
Open access
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DRDanijela Radulovic
Danijela Radulovic
SMSrdjan Masic
Srdjan Masic
Dejana StanisavljevicDejana Stanisavljevic
Dejana Stanisavljevic
DBDejan Bokonjic
Dejan Bokonjic
SRSvetlana Radevic
Svetlana Radevic
Natasa MilicNatasa Milic
Natasa Milic
Background: The COVID-19 pandemic has had a significant impact on the global economy and public health, disrupting various aspects of daily life. Apart from its direct effects on physical health, it has also significantly affected the overall quality of life and mental health. This study employed a path analysis to explore the complex association among multiple factors associated with quality of life, anxiety, and depression in the general population of the Republic of Srpska during the pandemic’s second year. Method: A cross-sectional study was conducted on a nationally representative sample (n = 1382) of the general population (adults aged 20+) during the second year of the COVID-19 pandemic in the Republic of Srpska, Bosnia, and Herzegovina. Assessment tools included the DASS-21 scale for depression, anxiety, and stress, along with the Brief COPE scale, Quality of Life Scale (QOLS), and Oslo Social Support Scale (OSSS-3). Sociodemographic factors and comorbidities were also assessed. Structural equation modeling was used to identify the direct and indirect links of various characteristics to quality of life, anxiety, and depression. Results: This study revealed a considerable prevalence of anxiety and depression symptoms (27.5% and 20.9%, respectively), with quality of life playing a significant mediating role. The constructed path model accounted for 33.1% of moderate to severe depression and 79.5% of anxiety. Negative coping was directly linked to anxiety and indirectly to depression via anxiety, while the absence of positive coping had both direct and indirect paths (through quality of life) on depression. Among variables that directly affected depression, anxiety had the highest effect. However, the bidirectional paths between anxiety and depression were also suggested by the model. Conclusions: Pandemic response strategies should be modified to effectively reduce the adverse effects on public mental health. Further research is necessary to assess the long-term effects of the pandemic on mental health and to analyze the contributing factors of anxiety and depression in the post-COVID period.

2 March 2022 in Acta Microbiologica Et Immunologica Hungarica
Verified
Journal Article
Open access
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DKDarija Knežević
Darija Knežević
MPMiroslav Petković
Miroslav Petković
LBLjiljana Božić
Ljiljana Božić
NMNataša Miljuš
Nataša Miljuš
BMBiljana Mijović
Biljana Mijović
RŠRanko Škrbić
Ranko Škrbić
Healthcare workers (HCW) in primary healthcare centres in the Republic of Srpska, Bosnia and Herzegovina, are on the first combat line with COVID-19. This study aimed to assess the seroprevalence of SARS-CoV-2 among HCW at the primary healthcare centres and to analyse the risk exposure to COVID-19, clinical signs and vaccination status. A cross-sectional study was conducted among HCW at the selected primary healthcare centres between 19 March and 30 April 2021. Antibodies against the SARS-CoV-2 virus were detected by enzyme-linked immunosorbent assay (ELISA). A total of 1,023 HCW (mean age 45 years; 71% female) were included in the study. The anti-SARS-CoV-2 antibodies were detected in 69.5% of all participants. There was a significant difference in seropositivity among primary healthcare centres from different geographical regions. As many as 432 (42%) of all participants had confirmed COVID-19 symptoms before the study and, 84.8% of them were seropositive. This study showed that 702 primary HCW were vaccinated with any of these vaccines: Sputnik V, Sinopharm, Pfizer/Biontech. High titre of SARS-CoV-2 antibodies was found amongst those who received one (92.6%) or both (97.2%) doses of vaccines. In this study, we report high prevalence of SARS-CoV-2 antibody among HCW in primary healthcare in the Republic of Srpska, Bosnia and Herzegovina during the third pandemic wave.

25 September 2026 in Biomolecules
Verified
Journal Article
Open access
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DVDolika Vasovic
Dolika Vasovic
DRDejan M. Rašić
Dejan M. Rašić
DSDragan Spaić
Dragan Spaić
JSJelena Simonovic
Jelena Simonovic
TKTanja Kalezic
Tanja Kalezic
JPJelica Pantelić
Jelica Pantelić
Pterygium is a common ocular surface disorder linked to chronic ultraviolet exposure, local inflammation, and oxidative stress, yet no reliable circulating biomarker currently guides diagnosis, activity assessment, or recurrence risk. Peripheral-blood studies addressing this gap have produced inconsistent findings across hematological, inflammatory, and micronutrient domains, often using heterogeneous case definitions and isolated marker panels. In this prospective case–control study, 30 patients with newly diagnosed, clinically active primary pterygium and 17 healthy controls frequency-matched for age and sex underwent a comprehensive peripheral blood panel comprising 46 hematological, biochemical, iron-related, inflammatory, and vitamin/metabolic-bone parameters, including osteocalcin, ceruloplasmin, and immunoglobulin E. Lesions were graded using the Maheshwari and Tan classification systems, and group and severity-stratified comparisons were corrected for multiple testing using the Benjamini–Hochberg procedure. No parameter differed significantly between groups after correction. Nominal, uncorrected differences included higher total protein, albumin, and mean platelet volume in patients with pterygium, and severity-linked patterns of higher platelet count, plateletcrit, and ceruloplasmin, and higher vitamin B12, folic acid, and serum iron in less advanced lesions. None of these nominal differences survived correction, so no single marker distinguished pterygium from controls or tracked severity. Platelet indices and ceruloplasmin showed the most consistent severity-linked pattern, but this was nominal only and hypothesis-generating, warranting evaluation in larger, adequately powered cohorts.

17 February 2026 in Биомедицинска истраживања
Verified
Journal Article
Open access
DSDragan Spaić
Dragan Spaić
SMSrđan Mašić
Srđan Mašić
DBDejan Bokonjić
Dejan Bokonjić
NRNina Rajović
Nina Rajović
ZBZoran Bukumirić
Zoran Bukumirić
NMNataša Milić
Nataša Milić
Introduction. The development of information technologies in education has enabled the introduction of new teaching approaches, among which the Flipped classroom (FC) model has gained increasing attention. The FC model has emerged as a student-centered approach that promotes active learning in medical education. The aim of this study was to examine students’ perceptions of the FC implementation in medical education.Method. A cross-sectional study was conducted on a sample of 63 third-year medical students at the Faculty of Medicine in Foča. Data were collected through an anonymous online questionnaire distributed via the Moodle platform, consisting of six domains and a total of 31 statements.Results. Students expressed generally positive attitudes toward the FC model: over 50% provided positive responses, about one-third were neutral. The highest average scores were related to learning independence (x̄ = 3.84) and preparedness and motivation for classes (x̄ = 3.79). No statistically significant differences were found between male and female students’ attitudes, while students with a higher-grade point average (≥ 8.50) showed significantly more favorable attitudes in the domains of overall attitudes (p = 0.036) and communication (p = 0.013). Logistic regression analysis indicated that the communication domain was a significant predictor of belonging to the group with higher academic achievement (p = 0.020).Conclusion. The results indicate that medical students perceive the FC positively and recognize its contribution to better motivation, independence, and interactivity in the learning process. These findings may serve as a basis for further research on the impact of this model on academic outcomes and for a deeper understanding of students’ perceptions of modern learning approaches in medical education.