“…The samples of children were heterogeneous and included various settings (ambulatory and elective) and types of surgery (dental, otorhinolaryngology, genital, urologic, ophthalmological, urological, orthopaedic, abdominal or general) (see Table 2 ). The durations considered before the induction of anaesthesia ranged from 20 min (Al‐Nerabieah et al, 2020 ; Clausen et al, 2021 ; Dwairej et al, 2020 ; Forouzandeh et al, 2020 ; Gao et al, 2014 ; Marechal et al, 2017 ; Stewart et al, 2019 ; Ünver et al, 2020 ) to 24 h (Chaurasia et al, 2019 ; Hashimoto et al, 2020 ). Most of the interventions lasted between 5 min (Al‐Nerabieah et al, 2020 ; Buyuk et al, 2021 ; Dehghan et al, 2019 ; Jung et al, 2021 ) and 15 min (Eijlers, Dierckx, et al, 2019 ) (Table 2 ).…”