“…Adherence is assessed on objective criteria (built-in software data) because children and caregivers tend to overestimate real adherence [148]. Adherence reported in the literature usually not covers the entire night and represents the greatest challenge for long term CPAP/NIV [14,148,[181][182][183][184][185][186][187][188]. Numerous predictors of adherence have been identified: greater self-perceived improvement in SDB symptoms [180], developmental delay (lower compliance in children with Down syndrome) [144,189] and better adherence in children with other causes of developmental delay [190,191]), gender [190], rapid acclimatization to treatment [180], technical issues [180], NIV vs CPAP [192], side effects [180], familiarity with medical treatments, understanding of the disease and its consequences [180], greater improvement in the AHI [188,193], age [184], ethnicity [184], maternal education [184], family social support [180,184], family structure [185], perception of CPAP benefits [185], family member using CPAP [14], caregiver self-reported efficacy [194], and internalizing problems [188].…”