Background Evidence-based medicine (EBM) is the use of the current best evidence for patient care. Medical students should critically appraise the research evidence to help them during their clinical practice in the future. We conducted this study to assess the skills, terms and attitude toward EBM. Method We conducted a cross-sectional study for medical students from governmental universities. Students completed an online validated questionnaire consisting of several sections to assess skills, attitude and knowledge about terms related to EBM. We used a scale ranging from 1(strongly disagree) to 5(strongly agree) for the 11 questions assessing the attitude and a scale ranging from 1(Poor) to 5(advanced) for EBM skills. Results A total of 761 medical students with a mean age of 21.97 ± 1.64 participated in the study. 327 (43 %) of them were males. The most commonly used search engines were Google 690 (91 %) and Wikipedia 465 (61 %). Medical books 719 (94 %) and lecture notes 353 (46 %) were the most common sources for health information. The majority of students rated their skills related to EBM as average and below average for all questions (overall = 2.18 ± 0.8). Students rated their skills as poor (31 %) in locating professional literature, as average (34 %) in searching online databases, poor (42 %) in critical appraisal of a scientific publication reporting findings from clinical research and poor (36 %) in Critical appraisal of available scientific literature. Regarding attitude, the overall mean score was 2.83 ± 0.76. There is no significant difference in attitude score between students with or without EBM training (P = 0.2). The terms with the highest understanding were case-control study (45 %) and case report (44 %) for study design. Median (44 %) and sample size (43 %) for statistics. Incidence (46 %) and prevalence (44 %) for epidemiology. Conclusions Medical students have a knowledge gap in skills and terms related to EBM and an average attitude towards EBM. The majority of them were using a nonscientific search engine to obtain medical information. There is a need to educate students about the proper steps for getting the scientific literature and EBM skills.

Background Rheumatic heart disease (RHD) is a major and preventable cause of cardiac mortality in Sudan, particularly in Kordofan. It can be detected early with a handheld echocardiography machine. Methods A cross-sectional study was conducted in South Kordofan State, Sudan (as part of a medical convoy organized by Khartoum Medical Students Association). A team of shortly trained medical students and newly graduated doctors conducted a handheld echocardiographic screening using a simplified protocol. All suspected cases were recorded and reviewed later by a senior pediatric cardiologist. Demographic and clinical features of screened subjects were studied. Data analysis was performed using the Statistical Package for Services and Solutions (SPSS 25). Descriptive statistics were presented as “number (%)” or “mean ± SD”. RHD prevalence was expressed as cases per 1000, and Chi-Square test/Fisher’s Exact test was used to compare RHD findings between different groups. Results The disease frequency was found to be 50 per 1000. Out of 452 screened subjects (age 10-25 years), 23 were found to have RHD with a male to female ratio of 1:1.5. Echocardiographic quality was acceptable in 93% of studies. The disease was mild in 70% and moderate or involving 2 valves in 30% of patients. Patients were contacted, advised to start penicillin prophylaxis and referred to cardiologists. Risk factors for the disease included father's occupation and village of residence. Conclusion Shortly trained junior medicals can assist in RHD echocardiographic surveillance in remote areas. South Kordofan state is highly endemic for RHD and a control program needs to be implemented. Handheld echocardiography is of value for early detection and management.