Background: Medical students are at a significant risk of experiencing psychological issues, such as burnout. Over the past few years, more studies have been conducted on this topic, producing different results. Aims: The purpose of this review was to determine the global pooled prevalence rate and risk factors associated with burnout and its components among undergraduate (pre-intern) medical students. Method: From inception until 30 November 2021, nine electronic databases were used for an electronic search. Using random-effects meta-analysis, we pooled the estimates using the DerSimonian-Laird method. The prevalence of burnout in medical students was the primary outcome of interest. Data were analyzed globally, by country, by research measure. Age and sex were examined as confounders using meta-regression analysis. Results: A random-effects meta-analysis of 42 studies involving 26,824 evaluating the prevalence of burnout in medical students showed an overall prevalence rate 37.23% [32.66%; 42.05%], Q = 2,267.15(41), p < .0001, τ2 = .42, τ = .65, I2 = 98.2%; H = 7.5. Prevalence of emotional exhaustion, depersonalization, and personal accomplishment were 38.08% [30.67%; 46.10%], 35.07% [26.74%; 44.41%], and 37.23% [32.66%; 42.05%], respectively. Variations were observed between countries and research measures. Age (older) and sex (female) were both significant predictors of burnout. Conclusion: The prevalence of burnout in medical students was estimated to be 37.23%. It is urgent that future studies serve as a basis for the development of prevention and treatment programs to prevent and treat burnout in students.

Background: No systematic review or meta-analysis has yet been performed to examine the global prevalence of nomophobia by population, by instrument. Thus, this review was performed to estimate the prevalence of nomophobia by severity. Methods: American Psychological Association PsycINFO, Cochrane, Cumulative Index to Nursing and Allied Health Literature (CINAHL), EBSCOhost, EMBASE, MEDLINE, ProQuest Medical, ScienceDirect, Scopus, and Web of Science from inception of each respective database to second week of January 2021 were used. There was no language restriction. The random-effect meta-analysis model was used with the DerSimonian and Laird methodology was used for computation. Results: Twenty papers, involving 12,462 participants from ten countries, were evaluated for meta-analysis. The prevalence of moderate to severe nomophobia is 70.76% [95% CI 62.62%; 77.75%]. The prevalence of severe nomophobia is 20.81% [95% CI 15.45%; 27.43%]. University students appeared to be the highest group affected with a prevalence of severe nomophobia 25.46% [95% CI 18.49%; 33.98%]. Meta-regressions of severe nomophobia showed that age and sex were not a successful predictor of severe nomophobia β = −0.9732, p = 0.2672 and β = −0.9732, p = 0.4986. Conclusions: The prevalence of severe nomophobia is approximately 21% in the general adult population. University students appeared to be the most impacted by the disorder.

This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in ; Vol. 21, No. 49. See the NIHR Journals Library website for further project information.

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