“…1 Flowchart of the study selection process 94-107, 110-114, 116-121, 123-135, 137, 138, 141-143, 147, 148]; sixty-one of these were studies with a single intervention, mainly with an audit and feedback strategy(19/61, 31.1%) [53, 56-58, 62, 64, 67-71, 74, 76, 82-86, 89, 91, 92, 94, 107, 110, 111, 113, 120, 121, 123, 127, 132, 134, 135, 138, 141, 142, 147]. Eighteen papers (18/113, 15.9%)[40-42, 51, 54, 60, 71, 85, 87, 91, 98, 105, 106, 125, 135, 136, 138, 142] showed an increase in compliance among prescribing physicians; half of the papers analysing this outcome were from USA and Canada (10/18, 55.5%), and the main ASPs adopted were guidelines (9/34, 26.5%)[40,42,54,60,85,87,91,106,125,142], doctors education (5/34, 14.7%)[54,91,98,138,142] and other not common ASPs such as antibiotic order set[42,51], and checklists[87,91]. Sixteen of the included studies[16/113, 14.2% in total; 7/16 (43.7%) from USA, 6/16 (37.5%) from Asia and the rest (18.7%) from Europe] quantified cost savings related to the intervention[39,49,52,64,66,69,73,86,89,92,97,101,102,[122][123][124].…”