Impact of social distancing for covid-19 on youths' physical health: a systematic review of the literature.

Abstract

Schools' closure during covid-19 pandemic implemented almost all over the world, together with social distances measures and lockdown to reduce transmission, could have had negative impact on youths' health. Summarize the most relevant data from a literature systematic review on the impact on youths' physical health of the 2020 school closure and social distances measures implemented in response to covid-19 pandemic. Authors of the original review searched on 11 international databases up to 1st September 2020 to retrieve cohort studies, cross sectional surveys, uncontrolled pre-post studies and modelling studies. Methodological quality has been assessed with validated checklists. Forty-two studies reporting the impact on physical health have been finally included. They have been conducted in 14 countries, most of which in Italy (30.9%) and UK (30.9%). The majority were cohort studies (40.5%) and the overall methodological quality, irrespective of study designs, was high for the 71.4% of the studies. Twenty-seven studies assessed the impact on health services utilization, whose results showed a relevant reduction of Emergency Departments accesses (64%-89.3%) and hospital admissions (31%-85%); however, an increase of acute cases was observed together with delayed admission. An important reduction of vaccine services utilization was also noted during the first period of lockdown. Domestic accidents and head trauma for suspected domestic violence increased. Health related behaviours worsened, with a relevant increase of screen time (mean of 2.9 hours to 5.1 hours), an important reduction of physical activity (up to 64%). Finally, sleep problems and increase of food consumption, particularly the unhealthy food were reported. Relevant negative effects of school closure and social distances measures have observed. All the studies have been conducted during the first wave of pandemic and assessed the short-term effect of closures implemented for relatively short periods. If school closure and rigid social distances measures imposition will extend for a long time, an even more pronounced negative effect can be expected. In the context of health policies, in addition to the potential benefits of school closures and social distancing measures on the containment of infection, the potential damage on the physical health of young people should be taken into account by implementing policies to safeguard their health.