“…Some, but not all body systems exhibit signs of premature ageing, and, while longevity in people with DS has improved appreciably, age-specific risk for mortality is considerably increased compared with other people with intellectual disabilities [38]. Prior approaches to the description of the distinct clinical profile of adults with DS were based either on population studies based on death certificate diagnoses, or hospital admission diagnoses [11,16,39], or on retrospective series focused on a particular set of disorders (ophthalmologic disorders, cardiovascular disorders, cognitive impairment, celiac disease, etc. ), leading occasionally to contradictory conclusions [23,24,32,33,37].…”