“…The findings of Schaffer and colleagues are consistent with those from previous large studies in countries with advanced economies regarding the high level of POP observed, 5,10,11 but detailed comparisons of POP reported in these studies have shown major discrepancies of drug prescription level by age‐classes 5,10 . Given that the epidemiological patterns of chief paediatric diseases are similar, overall, in countries with advanced economies, the concerning high level of POP observed in some countries for some therapeutic classes is probably mainly related to parents' health literacy, physicians' practices and health care systems characteristics 5 .…”