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Background Nowadays, radiology is considered one of the most important disciplines of medicine as it guides physicians to reach the proper diagnosis by using many types of medical imaging modalities, such as x-ray radiography, computed tomography (CT), ultrasonography (US), and magnetic resonance imaging (MRI). These modalities are used to create dynamic images of different parts of the human body, which are being used to accurately diagnose and follow up on a variety of medical conditions. Moreover, in recent decades, radiology has experienced substantial growth and transformation, establishing itself not just in diagnostics but also in the domain of medical interventions, which includes the increasingly recognized discipline of interventional radiology. Methodology A descriptive cross-sectional study was conducted at Umm Al-Qura University (UQU) in Makkah from October 2022 to April 2023. The population size of medical students from the fourth to sixth year at Umm Al-Qura University is about 820 students. Results The total number of participants was 359, but two did not fill out properly. Hence, data was analyzed for (n=357), whereas more than half of them were female, 195 (54.6%). About 133 (37%) of the students were in their sixth year, while 106 (29%) were in their fourth year. Regarding their grade point average (GPA), 209 (58%) had >3.5, and 119 (33%) had 3.0-3.5. The maximum number of females 77 (57.9%) students were in the sixth year. Regarding knowledge, 291 (81.5%) had heard about interventional radiology before, while 66 (18.5%) had never heard about interventional radiology before. Moreover, 270 (75.6%) believe that the years in radiology residency are the same as other specialties. Regarding perceived knowledge about radiology, 183 (51.3%) said it is adequate. Conclusion This study showed that medical students at Umm Al-Qura University have a positive attitude towards radiology. However, the majority of the students do not have adequate knowledge regarding radiology as well as radiation hazards. We can improve this by increasing radiology experience in our institutions. Also, courses should be designed and incorporated into the curriculum to increase the knowledge of medical students about ionizing radiation.
RESUMO
Introduction Multiple sclerosis (MS) is an autoimmune disease that can be disabling to patients. Smoking has been proposed to be a risk factor for MS and to increase the risk of progression of the disease and its severity. However, it is still not clear how smoking affects people with MS (PwMS) regarding disease phenotype, symptoms, relapses, course, and disability. The aim of this study is to investigate the effect of smoking on PwMS in Saudi Arabia. Methods This is an online questionnaire-based cross-sectional study. PwMS were randomly contacted through different MS societies and associations to participate in the study. The questionnaire inquired about demographics, MS phenotype and severity, and smoking status of the participants. Data were collected between May 30, 2021, and July 5, 2021. Results Four hundred twenty-nine PwMS participated in the study. The mean age was 33.7, with a mean disease duration of 8.1 years. About 61.1% of the participants were female. About 62.2% did not know the specific MS phenotype they have. About 35.7% were current or previous smokers, with a mean smoking duration of 13.9 years. Smoking was significantly associated with the presence of multiple MS symptoms (p-value = 0.009) and their number (p-value = 0.050). In addition, there was a significant positive correlation between pack-years smoking and the number of MS symptoms with a Pearson's r value of 0.165 (p-value = 0.001). No significant associations were found between smoking and recent relapses and disease progression, disability in terms of walking, needing a cane, or needing a wheelchair. Conclusion Smoking was shown to have a significant effect on the number of symptoms experienced by PwMS. Higher pack-years of smoking correlates positively and significantly with a higher number of MS symptoms. Further studies to examine these relations are hence warranted.
