Childhood obesity and SARS-CoV2: dangerous liaisons

ABSTRACT BACKGROUND: Nowadays obesity and CoronaVIrus Disease-19 (COVID-19), for some extent, represent two major public health problems worldwide. These diseases, albeit extremely different, have a pandemic pattern of diffusion and have enormous direct and indirect effects both on health and lifestyle. AIM: Aim of our narrative review was to analyze in the pediatric population, the relationship between these two diseases using a holistic approach. MATERIALS AND METHODS: We performed a quasi-review with a systematic literature search through the Cochrane Library and Medline/PubMed databases from 1 January 2013 to 1 October 2020. Two authors independently extracted data using predefined data fields and rated study quality. Two main key words were considered, obesity and COVID-19, pointing a particular focus on pediatric patients. We also analysed the relationship between obesity and COVID-19 in adults for comparison. CONCLUSION: Evidences showed that during quarantine due to COVID-19, children and adolescents were physically less active, have much longer screen time exposure, sleep patterns disturbances, and less favorable diets, possibly resulting in weight gain and in a loss of cardio-respiratory fitness. Such negative effects on health are likely to be much worse in subjects that are overweight or have obesity. Moreover, stressors emerging from the prolonged national lock-down around the world and from social distancing could have even more problematic and enduring effects considering that obese children are more susceptible to psychiatric disorders. Obesity represents also a risk factor for COVID-19 severity in younger adults but at the moment in pediatric population we have very limited data. Public health interventions are urgently called in order to promote an active lifestyle and engagement in social activities in children and possibly to mitigate the adverse impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in pediatric subjects that are overweight or have obesity.