Asociación entre alteraciones en el sueño y problemas de salud mental en los estudiantes de Medicina durante la pandemia de la COVID-19

Introduction: Medical students are a population vulnerable to poor sleep quality and sleep deprivation; these problems were accentuated during the COVID-19 pandemic. The objective was to evaluate the association between sleep disturbances and the presence of depression and anxiety in medical students during the pandemic. Materials and methods: Cross-sectional, analytical study in medical students of a private university in Peru. Data were collected from May 22 to June 14, 2020, after 3 months of mandatory social isolation. The Patient Health Questionnaire (PHQ-9; ≥ 10), the Generalized Anxiety Disorder (GAD-7; ≥ 10) scale and the Insomnia Severity Index (ISI; ≥ 8) were used to assess depression, anxiety and insomnia, respectively. Poisson regressions with robust variance were used to calculate prevalence ratios. Results: The prevalence of depression, anxiety and insomnia was 28.5%, 29.5% and 60.1% respectively. It was found that those who had short sleep (RPa: 1.40, CI: 1.05-1.87, p: 0.024), who slept after 2:00 hours (RPa: 2.24, CI: 1.31-3.83, p: 0.003) and who presented insomnia (RPa: 7.12, CI: 3.70-13.73, p: < 0.001) had a higher prevalence of anxiety. Likewise, those who slept after 2:00 hours (RPa: 2.13, CI: 1.24-3.64, p: 0.006) and those who presented insomnia (RP: 8.82, CI: 4.17-18.68, p: < 0.001) had a higher prevalence of depression. Conclusions: Short sleep, bedtime and insomnia are factors associated with the prevalence of depression and anxiety.