Details of ethics approval
This cross-sectional study required the authorization from the relevant authorities to conduct the study within private and public high schools: Diocesan Direction of Catholic Education (February 2, 2019) and the Academy of Rennes (March 7, 2019), respectively. We also obtained approval from the Ethics Committee of Montpellier University Hospital on March 12, 2019 (ID-RCB: 2019-A00302-55, clinical trial number: NCT04007471)