Improving the appropriateness of antimicrobial use in primary care after implementation of a local antimicrobial guide in both levels of care.

OBJECTIVE: This study aims to assess the effectiveness of multiple interventions carried out during the implementation of a guide, on the improvement of the appropriateness of antimicrobial prescribing in primary care. DESIGN: This is a cross-sectional before/after study carried out in Aljarafe Health Care Area (Andalusia, Spain), with a population of 368,728 inhabitants assisted in 37 health centers. SUBJECTS: Subjects include patients with antibiotic prescriptions during 2009 (pre-intervention phase) or 2012 (postintervention phase) selected by simple random sampling (confidence level, 95%; accuracy, 5%), with infections registered in the electronic clinical history. INTERVENTIONS: This study involve training sessions in primary care centers and hospital services, incorporation of the electronic guide to the Health Care Service Websites, and incorporation of the guide to the Digital Health History as a tool to support decision making. MAIN OUTCOME: Difference on appropriate antibiotic prescribing before and after interventions resulted from the study. Other variables also include age, gender, type of pharmacy, antibiotic prescribed, number of treatments per year, infection site, and main comorbidities SOURCES: In addition, this study uses computerized pharmacy records of reimbursed and dispensed drugs and electronic medical histories. RESULTS: The percentage of appropriate antibiotic prescribing increased from 36% in 2009 to 57% in 2012 (p < 0.001) is shown. The improvement was observed in all age patients of any sex and was higher among working-age patients and patients with comorbidities. The best results were observed in the group of beta-lactams and in the treatment of respiratory and skin infections. CONCLUSION: The realization of multifactorial interventions involving professionals from both levels of care could be an effective strategy to improve the use of antimicrobials in primary care.

[Appropriateness of antibiotic prescribing in a primary care area: a cross-sectional study]. / Adecuación de la prescripción de antibióticos en un área de atención primaria: estudio descriptivo transversal.

OBJECTIVE: To assess the profile of patients receiving antibiotics and the appropriateness of these prescriptions for the clinical conditions. DESIGN: Cross-sectional study of prescription-indication. SETTING: A primary health care area in Andalusia. SUBJECTS: Patients assigned to primary care centres. Patients with antibiotic prescriptions during 2009 were selected by simple random sampling (confidence level: 95%, accuracy: 5%). Primary endpoint: appropriateness of antibiotics prescribing to recommendations included in local guidelines. Data were obtained through the billing computerised prescriptions system and medical histories. RESULTS: Twenty-five per cent of the population area received antibiotics during 2009. The 1,266 patient samples showed the following characteristics: 57.9% were women, with a mean age of 41 (±1) years. There were 39.3% pensioners. The percentage of appropriate antibiotic prescriptions was 19.9%, with no difference due to gender. Statistically significant differences were related to age, being those over 65 years the group of patients with the highest percentage of inappropriateness. The main reasons for inappropriateness were: no recording of the infectious process (44.5%), a wrong treatment duration (15.5%), and the use of an inadequate antibiotic (11.5%). CONCLUSION: There is a high level of inappropriateness in antibiotic prescribing in primary care. The high level of under-recording of diagnoses, mainly in elderly patients, followed by the use of wrong schedules, and the wrong type of antibiotics were the main reasons of inappropriateness.