Identification of high-risk patients for referral through machine learning assisting the decision making to manage minor ailments in community pharmacies.

Background: Data analysis techniques such as machine learning have been used for assisting in triage and the diagnosis of health problems. Nevertheless, it has not been used yet to assist community pharmacists with services such as the Minor Ailment Services These services have been implemented to reduce the burden of primary care consultations in general medical practitioners (GPs) and to allow a better utilization of community pharmacists' skills. However, there is a need to refer high-risk patients to GPs. Aim: To develop a predictive model for high-risk patients that need referral assisting community pharmacists' triage through a minor ailment service. Method: An ongoing pragmatic type 3 effectiveness-implementation hybrid study was undertaken at a national level in Spanish community pharmacies since October 2020. Pharmacists recruited patients presenting with minor ailments and followed them 10 days after the consultation. The main outcome measured was appropriate medical referral (in accordance with previously co-designed protocols). Nine machine learning models were tested (three statistical, three black box and three tree models) to assist pharmacists in the detection of high-risk individuals in need of referral. Results: Over 14'000 patients were included in the study. Most patients were female (68.1%). With no previous treatment for the specific minor ailment (68.0%) presented. A percentage of patients had referral criteria (13.8%) however, not all of these patients were referred by the pharmacist to the GP (8.5%). The pharmacists were using their clinical expertise not to refer these patients. The primary prediction model was the radial support vector machine (RSVM) with an accuracy of 0.934 (CI95 = [0.926,0.942]), Cohen's kappa of 0.630, recall equal to 0.975 and an area under the curve of 0.897. Twenty variables (out of 61 evaluated) were included in the model. radial support vector machine could predict 95.2% of the true negatives and 74.8% of the true positives. When evaluating the performance for the 25 patient's profiles most frequent in the study, the model was considered appropriate for 56% of them. Conclusion: A RSVM model was obtained to assist in the differentiation of patients that can be managed in community pharmacy from those who are at risk and should be evaluated by GPs. This tool potentially increases patients' safety by increasing pharmacists' ability to differentiate minor ailments from other medical conditions.

Strengthening patients' triage in community pharmacies: A cluster randomised controlled trial to evaluate the clinical impact of a minor ailment service.

BACKGROUND: Self-perceived minor ailments might conceal other health conditions if patients are not appropriately assisted by health care professionals. The aim of the study was to evaluate the patient-related outcomes of a community pharmacy Minor Ailment Service (MAS) compared to usual pharmacist care (UC). METHODS: A cluster randomised controlled trial was conducted over six months in community pharmacy in the province of Valencia (Spain). Patients seeking care or requesting a product for a minor ailments considered in the study (dermatological problems, gastrointestinal disturbance, pain and upper respiratory tract related symptoms) were included. The intervention consisted of a standardised pharmacist-patient consultation guided by a web-based program using co-developed management protocols and patients' educational material. Patients were followed up by phone ten days later. Primary clinical outcomes were appropriate medical referral and modification of direct product request. Secondary outcomes were symptom resolution and reconsultation rates. RESULTS: A total of 808 patients (323 MAS and 485 UC) were recruited in 27 pharmacies of 21 municipalities. Patients visiting MAS pharmacies had higher odds for being referred to a physician (OR = 2.343, CI95% = [1.146-4.792]) and higher reconsultation rates (OR = 1.833, CI95% = [1.151-2.919]) compared to UC. No significant differences between groups were observed for modification of direct product request and symptom resolution. CONCLUSIONS: The use of management protocols through the MAS strengthened the identification of referral criteria such as red flags in patients suffering minor ailments. These patients with symptoms of minor ailments possibly due to more severe illness were to be referred and evaluated by physicians. Results reinforce that MAS increases safety for those patients consulting in community pharmacy for minor ailments. TRIAL REGISTRATION: Trial registration number: ISRCTN17235323. Retrospectively registered 07/05/2021, https://www.isrctn.com/ISRCTN17235323.

Medicines use review service in community pharmacies in Spain: REVISA project.

Background Community pharmacy services play an important role in controlling some factors related to medicine use and patients can benefit from these services to improve the adherence and knowledge of their medications, besides to reduce medicine-related problems. Objective The aim of the REVISA project is to carry out a study on preliminary implementation of the medicines use review service in Spanish community pharmacies. Setting Sixty-four community pharmacies from all regions of Spain. Method A preliminary implementation, cross-sectional multicentre study was conducted using a convenience sample of voluntary community pharmacies. A structured interview enabled to pharmacists to obtain a better understanding of patient's medicines use. Main outcome measure Medicines use review-related time and cost, satisfaction and willingness to pay. Results A total of 495 patients were enrolled. The mean age of the patients was 66.1 years, with the majority females (56.4%) and a mean consumption of 5.7 medicines. A total of 2811 medicines were evaluated and 550 referral recommendations were made (29.8% to Primary Care). The mean time employed by the pharmacists in the medicines use review service was 52.8 min (medicines use review-related cost of €17.27). Most patients expressed a high level of satisfaction with this service (98.5%) and a willingness to pay for it (84%). Conclusion Medicines use review service in community pharmacies in Spain can be delivered, that it appears to be acceptable to patients and that most patients said they would be willing to pay for it. This service may offer an opportunity to promote inter-professional collaboration between pharmacists and general practitioners.