“…Although this system may reduce medication errors, [46][47][48][49][50][51] lack of knowledge of all its options among physicians and the periodic incorporation of new medical staff could have led to persistence of the error rate throughout this study (data not shown), which was similar to that in other reports. 50,[52][53][54] Likewise, the factors independently associated with the risk of at least one DRP in hospitalized patients of advanced age were greater comorbidity, treatment with a higher number of drugs, and specific MDC and ATC groups, especially drugs acting on the cardiovascular system, hormone system, antimicrobial agents, ophthalmologic agents, and the "various" groups.…”