Frequency of outpatient care adverse events in an occupational mutual insurance company in Spain

Background: Occupational mutual insurance companies (OMICs), in collaboration with the Spanish Social Security System, provide healthcare and manage the economic benefits for the workers in Spain. They have ambulatory care centers that attend outpatient trauma pathology, although most of the studies published have focused on surgical and hospital activity. The aim of this study was to detect adverse events (AEs) in outpatient trauma care in the context of an OMIC. Methods: A cohort study designed to identify harmful safety incidents (adverse events, AEs) in 2017 was conducted. A random sample of 313 medical records among patients who were visited more than 3 medical and nursing attendances during their outpatient process. The AEs detected were classified according to category, severity and preventability. Results: We identified 48 AEs (15.3% of medical records, 95% CI 11.3-19.3), most of them procedure-related, while 27 (56.2%) were preventable and 46 mild (95.8%). Conclusions: The AEs identified are double than those found in primary care general consultations in Spain and are close to the lower range of studies on surgical AEs in traumatology and orthopedics. Preventable AEs were within expected limits. Over half of AEs are preventable, within that group, the mild AEs have an increased rate of preventability. These results highlight the relevance of research of patient safety in the outpatient care of trauma and orthopaedic procedures in an OMIC for patient safety and contribute to introduce improvements in outpatient care. (C) 2021 FECA. Published by Elsevier Espan tilde a, S.L.U. All rights reserved.