Age-dependent association of obesity with COVID-19 severity in paediatric patients.

Background: Limited research has addressed the obesity-COVID-19 severity association in paediatric patients.

Objective: To determine whether obesity is an independent risk factor for COVID-19 severity in paediatric patients and whether age modifies this association.

Methods: SARS-CoV-2-positive patients at NYU Langone Health from 1 March 2020 to 3 January 2021 aged 0-21 years with available anthropometric measurements: weight, length/height and/or body mass index (BMI).