“…This difference may be attributed to a difference in hospital care between adults and children, and the costs of inpatient stay may be higher when patients had surgery compared to a hospitalization without surgery. However, Murphy et al 22 showed average costs of US$ 15 478 (EURO 2014: €15 606, converted with PPP 11 ) per hospitalization related to musculoskeletal and connective tissue system disorders in the US (resource use collection was done in 1997), which is more than twice calculated hospital costs in this article. This may be due to the inclusion of more costly operations, e.g., operations on the lower extremities, spine, and hip.…”