A systematic review on the impact of pharmacist-provided services on patients' health outcomes in Arab countries

The Effects of Diverse Interventions on Diabetes Management Among Arabs With Diabetes: A Systematic Review

AIM

To identify, describe, and critically evaluate the effects of various interventions on diabetes management outcomes among Arabs with diabetes.

DESIGN

A systematic review.

DATA SOURCES

The search was conducted across three databases: PubMed, CINAHL and the Cochrane Collaboration in December 2023.

REVIEW METHODS

Screening involved randomised controlled trials and nonrandomised studies that focused on the effects of interventions on diabetes management among Arab with diabetes. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist guided the review process. Two researchers independently applied eligibility criteria. Data extraction captured key study details, and methodological quality was assessed using Downs and Black's checklist. This review is registered with the International Prospective Register of Systematic Reviews (PROSPERO; registration number CRD42024555668).

RESULTS

Thirty-five articles were reviewed, yielding 65 outcomes. Effective interventions included personalised care, patient-centred education and direct patient contact through lifestyle modifications, advice, feedback, motivational conversations and calls. These approaches improved haemoglobin A1c, fasting blood glucose, physical activity and medication adherence. Conversely, nonpersonalised remote monitoring and social media interventions showed no significant improvements. Notably, tailored nutritional and physical activity advice positively impacted body mass index and systolic blood pressure among Arab women with diabetes.

CONCLUSION

The findings underscore the effectiveness of personalised care and direct patient contact in optimising diabetes management among Arabs with diabetes.

IMPACT

This review highlights the importance of prioritising direct patient contact over remote methods such as social media in interventions on diabetes management among Arabs with diabetes. It emphasises the need for culturally sensitive approaches, particularly for women.

PATIENT OR PUBLIC CONTRIBUTION

No patient or public contribution, as this study constitutes a review of existing research.

Exploring the pharmacist role in insomnia management and care provision: A scoping review

BACKGROUND

Insomnia is a highly burdensome sleep disorder, with a global prevalence of approximately 30% in adults. Insomnia has negative effects on daily functioning and can play a pivotal role in the development and progression of comorbid mental and physical disease. Therefore, appropriate and timely management is essential. Pharmacists are at the forefront of the primary care workforce and given their expanding roles in care provision, would be able to alleviate the burden of insomnia in the community by delivering evidence-based management.

OBJECTIVE

To describe the current practice and potential roles of pharmacists in insomnia management.

METHODS

The Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews guidelines were followed in this scoping exercise. An extensive search of 5 databases (MEDLINE, Embase, Scopus, IPA, and CINAHL) was conducted, generating 1057 initial results. Titles, abstracts, and full-text articles were screened in a two-step process to identify relevant studies for review inclusion. Studies reporting on insomnia management by pharmacists in primary care settings were included in the review. Articles were reviewed and data extracted, analyzed, and grouped categorically based on study design.

RESULTS

Twenty-eight studies met inclusion criteria with 5 qualitative, 8 observational and 15 interventional studies. Over a third of the studies were conducted in Australia (n = 11). Insomnia management across these studies ranged from 1) screening/assessment services (n = 5), 2) pharmacological and nonpharmacological care provision (n = 16), and 3) sedative-hypnotic deprescribing services (n = 7). It was evident that pharmacological approaches remain the most common treatment modality adopted despite guidelines recommending cognitive behavioral therapy as first-line. The results show that with adequate training and education, pharmacists have the potential to provide insomnia screening, behavioral therapy, and pharmacological deprescribing services, improving overall insomnia management in primary care.

CONCLUSION

The outcomes of this review highlight a current gap in insomnia management practices carried out by pharmacists and provide evidence for expanded roles and improved care provision when pharmacists are upskilled with specialized training/education.

Effect of pharmacist care on clinical outcomes and therapy optimization in perioperative settings: A systematic review

PURPOSE

Integration of pharmacists into the perioperative practice has the potential to improve patients' clinical outcomes. The aim of this systematic review is to systematically investigate the evidence on the roles of pharmacists in perioperative settings and the effects of pharmacist interventions on clinical outcomes and therapy optimization.

METHODS

A protocol-led (CRD42023460812) systematic review was conducted using search of PubMed, Embase, CINAHL and Google Scholar databases. Studies that investigated the roles and impact of pharmacist-led interventions in the perioperative settings on clinical outcomes were included. Data were extracted and quality assessed independently by two reviewers using the DEPICT-2 (Descriptive Elements of Pharmacist Intervention Characterization Tool) and the Crowe Critical Appraisal Tool (CCAT), respectively. Studies were grouped according to the clinical area into 5 sections: (1) pain control and opioid consumption; (2) venous thromboembolism (VTE); (3) surgery-related gastrointestinal complications; (4) postoperative medication management; and (5) total parenteral nutritional.

RESULTS

Nineteen studies involving a total of 7,168 patients were included; most studies were conducted in gastrointestinal (n = 7) and orthopedics (n = 6) surgical units. Most included studies (n = 14) employed a multicomponent intervention including pharmaceutical care, education, guideline development, drug information services, and recommendations formulation. The processes of developing the implemented interventions and their structures were seldom reported. Positive impacts of pharmacist intervention on clinical outcomes included significant improvement in pain control and reductions in the incidence of VTE, surgery-related stress ulcer, nausea, and vomiting. There is inconsistency in the findings related to medication management (ie, achieving desired therapeutic ranges) and management of chronic conditions (hypertension and type 2 diabetes).

CONCLUSION

Whilst there is some evidence of positive impacts of pharmacist intervention on clinical outcomes and optimizing drug therapy, this evidence is generally of low quality and insufficient volume. While this review suggests that pharmacists have essential roles in improving the care of patients undergoing surgery, more research with rigorous designs is required.

A stepped wedge randomised controlled trial assessing the efficacy and patient acceptability of virtual clinical pharmacy in rural and remote Australian hospitals

BACKGROUND

Despite medication being the most common healthcare intervention and medication-related incidents being common in hospitals, many rural and remote hospitals in Australia lack onsite pharmacy services due to resource constraints. A Virtual Clinical Pharmacy Service (VCPS) staffed by two senior, rural generalist hospital pharmacists assigned to four hospitals each was implemented in rural and remote facilities to determine whether the VCPS increased adherence to National Safety and Quality Health Service Standards (NSQHS).

METHODS

A stepped-wedge randomised controlled trial was employed to sequentially implement a telehealth pharmacy service at one-month intervals in eight hospitals. The primary outcomes were patient-level medication reconciliation completion rates on admission and discharge. Secondary measures evaluated compliance with other NSQHS standards (including Best Possible Medication History, Medication Reconciliation and venous thromboembolism risk assessment), patient outcomes (including representation within 48 h, readmission within 28 days and length of stay), and detection of potential medication-related harms (including pharmacist identified medication related problems, reported medication errors and falls). Patients were invited to complete a patient-reported experience questionnaire. Data were collected from electronic medical records and analysed using mixed logistic regression models to estimate the effectiveness of the VCPS. Antimicrobial usage, falls, and medication errors were analysed at the facility level, while other data were analysed at the patient level.

RESULTS

Compared to control (n = 535), patients in the intervention period (n = 527) were more likely to have an admission medication reconciliation completed (Odds Ratio (OR) 11.16, 95% confidence interval (CI) 5.59-22.30, p < 0.001) in models adjusted for the study period. A similar improvement was observed for discharge medication reconciliation completion (OR 4.07, CI 2.38-6.95, p < 0.001), whereas a 33-fold improvement was seen in Best Possible Medication History completion (OR 33.27, CI 17.53-63.14, p < 0.001). The VCPS documented 879 medication related problems, with 61% of patients having at least one medication-related problem documented by a pharmacist. There was no change in length of stay, falls, readmission rates or reported medication error rates; however, the study was not powered to detect these changes. Patient feedback was positive and comparable to in-person care, with 95% (179/189) reporting their overall experience as 'good' or 'very good.' No unintended harms were reported.

CONCLUSIONS

The VCPS improved compliance with national standards for medication safety, had high patient acceptability and resulted in the detection of clinically relevant medication-related issues in rural and remote settings. The applicability of virtual pharmacy should be explored in further rural and remote locations in addition to other settings such as metropolitan locations with no onsite clinical pharmacists.

ETHICS NUMBER

GWHREC 2019/ETH13355.

TRIAL REGISTRATION

ANZCTR registration number ACTRN12619001757101. Registered on 11/12/2019. Published trial protocol: A stepped wedge trial of efficacy and scalability of a virtual clinical pharmacy service (VCPS) in rural and remote NSW health facilities.

Effectiveness of pharmacist-led antimicrobial stewardship programs in perioperative settings: A systematic review and meta-analysis

OBJECTIVE

We sought to characterize and evaluate the effectiveness of pharmacist-led AMS interventions in improving antimicrobial use and subsequent surgical site infections (SSI) in perioperative settings.

METHODS

A systematic review and meta-analysis was conducted by searching PubMed, Embase and CINAHL. Two independent reviewers extracted the data using the Descriptive Elements of Pharmacist Intervention Characterization Tool and undertook quality assessment using the Crowe Critical Appraisal. A meta-analysis was conducted using a random-effect model.

RESULTS

Eleven studies were included in this review. Pharmacists were found to have various roles in AMS, including educational sessions, ward rounds, audits and feedback, and guidelines development. The discussion of interventions lacked details on the development. A meta-analysis revealed that pharmacist-led AMS programs in perioperative settings was associated with a significant improvement in antibiotic selection (OR 4.29; 95 % CI 2.52-7.30), administration time (OR 4.93; 95 % CI 2.05-11.84), duration (OR 5.27; 95 % CI 1.58-17.55), and SSI (OR 0.51; 95 % CI 0.34-0.77).

CONCLUSION

Pharmacist-led AMS programs were effective in improving antimicrobial prescribing while reducing SSI; however most studies were of moderate quality. Studies lacked the utilization of theory to develop interventions, therefore, it is not clear whether theory-derived interventions are more effective than those without a theoretical element. High-quality, multicomponent, theory-derived, interventional studies using appropriate methodology and standardized data collection, are needed.

A stakeholders' perspective on enhancing community pharmacists' roles in controlling non-communicable diseases in the United Arab Emirates

Background

There is a global call for upscaling and optimising the role of community pharmacists (CPs) in the control of non-communicable diseases (NCDs). In the United Arab Emirates (UAE), where NCDs are classified as a public health pandemic, upscaling CPs contributions has become more critical. Several contextual, professional, and educational challenges constrain the role of CPs.

Objective

To synthesise the perspectives of key stakeholders in the UAE healthcare system and propose a roadmap for advancing the role of CP s in controlling NCDs in the UAE.

Methods

This research followed a qualitative design using the International Pharmaceutical Federation (FIP) framework for quality assurance of pharmacy profession development. Data were collected using semi-structured interviews with 28 experts and senior leaders, then analysed using the thematic analysis technique with the assistance of NVivo software.

Results

The analysis yielded three main themes that outlined the prospective roadmap: education, work environment, and policy. Some of the generated subthemes were establishing accredited NCD-specialised programmes, building a national framework for interprofessional education and collaboration, and upscaling the engagement of CPs in public health platforms and initiatives.

Conclusion

Improving the role of CPs in controlling the NCD pandemic in the UAE requires coherent and well-structured multidisciplinary endeavours from health policymakers, educational institutions, and all groups of healthcare professionals, including the CPs themselves.

Characteristics of the clinical pharmacist interventions at the National Center for Cancer Care and Research Hospital in Qatar

INTRODUCTION

Drug-related problems (DRPs) affect the health outcomes of patients during hospitalization. We sought to analyze the clinical pharmacist-documented interventions among hospitalized patients in the cancer hospital in Qatar.

METHODS

A retrospective analysis of electronically reported clinical pharmacist interventions of patients admitted to cancer units at Hamad Medical Corporation, Qatar was conducted. Extracted data was based on an overall 3-month follow-up period; March 1-31, 2018, July 15-August 15, 2018 and January 1-31, 2019. Categorical variables were expressed as frequencies and percentages, while continuous variables were expressed as mean ± standard deviation (SD).

RESULTS

A total of 281 cancer patients with 1354 interventions were included. The average age of the study participants was 47 years (SD ± 17.36). The majority of the study population was females (n = 154, 54.80%). The prevailing pharmacist intervention was the addition of a drug therapy (n = 305, 22.53%), followed by medication discontinuation (n = 288, 21.27%) and the addition of a prophylactic agent (n = 174, 12.85%). This pattern was similar across all subgroups (i.e., gender, age, ward), except for the urgent care unit, where an increase in medication dose was the third highest frequently identified intervention (n = 3, 0.22%). The two medication groups associated with the majority of interventions were the anti-infective and fluid/electrolyte agents. Most of the interventions documented were in the oncology ward (73.19%), while the urgent care unit had the least documented interventions (1.62%).

CONCLUSIONS

Our analysis showed that clinical pharmacists can effectively identify and prevent DRPs among hospitalized cancer patients.

Multifaceted pharmacist-led interventions in secondary care settings between countries of various income levels: a scoping review protocol

INTRODUCTION

Clinical pharmacy services often involve multifaceted pharmacist-led interventions. However, current pharmacy practice models vary across different countries. Despite the documented benefits of clinical pharmacy services, the characteristics of pharmacist-led interventions in different countries have not yet been adequately explored and described. Therefore, this protocol outlines the methodology for a proposed scoping review aiming to investigate various types of multifaceted pharmacist-led interventions and the outcomes used to evaluate their effectiveness within secondary care settings. Additionally, the scoping review will map the current evidence surrounding the characteristics of interventions and outcomes reported across various countries of socioeconomic status.

METHODS AND ANALYSIS

The scoping review will be conducted according to the JBI Methodology for Scoping Reviews and reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) Extension for Scoping Reviews. We will systematically search the following electronic databases: MEDLINE (Ovid), CINAHL (EbscoHost), Embase (embase.com), Scopus (scopus.com), Cochrane Library (cochranelibrary.com) and APA PsycInfo (Ovid). Additionally, the reference lists of identified reviews and included full texts will be searched for relevant papers. Grey literature sources, such as International Pharmaceutical Abstracts and the International Pharmaceutical Federation (FIP) website, will be searched. We will include primary studies published in the English language from January 2013 to December 2023, involving secondary care multifaceted pharmacist-led interventions. Two independent reviewers will screen studies against eligibility criteria and use a piloted data extraction form to extract relevant information. We will extract relevant data, complete a tabular summary from each included publication and analyse it.

ETHICS AND DISSEMINATION

Ethical approval is not required as we will be using data from publicly available literature sources. Findings will be disseminated in publications and presentations with relevant stakeholders. We aim to map available evidence across the breadth of studies that have reported multifaceted pharmacist-led interventions and their outcomes.

Evaluation of the Impact of a Pharmacist-Conducted Hypertension Clinic

Background

Hypertension can lead to cardiovascular and other health complications. Many hypertensive patients in the community may receive poor care and monitoring due to financial and other concerns. Pharmacists could support patients in improving their health outcomes. This research aims to assess the impact of pharmacist-led hypertensive clinics in a community pharmacy setting.

Methods

The study was an interventional exploratory design in a community pharmacy in Dubai, UAE. All eligible patients who consented were enrolled in the study, making it a population-based study. Patients' blood pressure (BP) was measured before starting the intervention and measured monthly for a minimum of 6 months of care. Measuring BP, physician referral for management of hypertension, lifestyle, diet, and medication counseling were the interventions provided by the researcher on a case-to-case basis as needed in each patient encounter. Toward the end of the study, a patient satisfaction survey was conducted. The survey form showed internal consistency, Cronbach's alpha = 0.895.

Results

About 30 patients were provided pharmacy services by a pharmacist for 613 months. All patients'' BP were monitored monthly. Patients showed reductions in their systolic and diastolic BP levels with the continued care of the pharmacist. (The mean systolic BP significantly decreased from 155 mmHg (standard deviation (SD) = 14.4, median = 151) at baseline to 128 mmHg (SD = 3.1, median = 129) with a P = 0.001. The mean diastolic BP showed a decrease from 95 mmHg (SD = 8.4, Median = 93) at baseline to 82 mmHg (SD = 1.2, Median = 81) with a P = 0.17. The participants showed a high level of patient satisfaction. Some were willing to pay for the pharmacist's professional service.

Conclusion

In conclusion, the study has shown the impact of pharmacist-led antihypertensive clinics in systolic BP control and achieving high patient satisfaction. The study generated insights into participant cooperation with pharmacist services and needs. More research on different outcomes is planned for future studies, including systematic pharmacotherapy work-up, patient medication adherence, and other clinical outcomes in the study population.

Prevalence, contributing factors, and interventions to reduce medication errors in outpatient and ambulatory settings: a systematic review

BACKGROUND

Medication errors are common events that compromise patient safety. Outpatient and ambulatory settings enhance access to healthcare which has been linked to favorable outcomes. While medication errors have been extensively researched in inpatient settings, there is dearth of literature from outpatient settings.

AIM

To synthesize the peer-reviewed literature on the prevalence, nature, contributory factors, and interventions to minimize medication errors in outpatient and ambulatory settings.

METHOD

A systematic review was conducted using Medline, Embase, CINAHL, and Google Scholar which were searched from 2011 to November 2021. Quality assessment was conducted using the quality assessment checklist for prevalence studies tool. Data related to contributory factors were synthesized according to Reason's accident causation model.

RESULTS

Twenty-four articles were included in the review. Medication errors were common in outpatient and ambulatory settings (23-92% of prescribed drugs). Prescribing errors were the most common type of errors reported (up to 91% of the prescribed drugs, high variations in the data), with dosing errors being most prevalent (up to 41% of the prescribed drugs). Latent conditions, largely due to inadequate knowledge, were common contributory factors followed by active failures. The seven studies that discussed interventions were of poor quality and none used a randomized design.

CONCLUSION

Medication errors (particularly prescribing errors and dosing errors) in outpatient settings are prevalent, although reported prevalence range is wide. Future research should be informed by behavioral theories and should use high quality designs. These interventions should encompass system-level strategies, multidisciplinary collaborations, effective integration of pharmacists, health information technology, and educational programs.

Patterns in counselling services provided at Saudi Ministry of Health medication counselling clinics - Reasons for referrals and subjects discussed: A cross-sectional study

Background

Pharmacists provide medication counselling services to improve patient knowledge and their adherence to prescription instructions, and to achieve the best possible health-related outcomes. Our study aim was to describe the patterns of the reasons for referral to counselling and the subjects discussed between pharmacists and patients, and the possible associations related to the susceptible patient groups (chronic and elderly), in Saudi Ministry of Health (MOH) medication counselling clinics.

Method

This was a descriptive cross-sectional study. An electronic data collection form was developed to document details about the medication counselling services that were provided to patients. The form consisted of three main areas: (1) patient demographics and counselling services characteristics; (2) reasons for referrals to the medication counselling clinics; and (3) the subjects that were discussed between pharmacists and patients in the counselling session. A comparison was conducted between chronic and non-chronic, and elderly and non-elderly patients.

Results

From May 2020 to December 2021, a total of 36,672 counselling service sessions were provided to 28,998 patients. The greatest proportion of reasons for referrals to counselling was that patients had chronic diseases (50.84%), patients were added a new medication (33.69%) or patients received multiple medications (polypharmacy) (22.71%). The most frequent subject discussed during counselling was general knowledge about medication (85.62%), the duration of therapy (68.42%) and the action that patients should take if they missed a dose of their medication (44.51%). Patients with chronic diseases showed a significantly greater frequency of referral to counselling compared to patients without chronic disease, due to polypharmacy, medication use during Ramadhan, adverse drug reactions (ADRs), dosing/interactions, high-alert medication and suspected nonadherence (P < 0.001). This led to a significantly greater frequency of discussions with patients with chronic conditions about their general medication knowledge, the duration of their therapy, missed doses, ADRs, medication reconciliation and medication use during Ramadhan (P < 0.001). Elderly patients recorded significantly more referrals to counselling related to chronic diseases and polypharmacy than their younger counterparts (P < 0.001); however, there was no significant difference between the elderly and non-elderly in the patterns of subjects discussed that were related to polypharmacy and chronic disease consequences. A significant spike was also reported in the frequency of delivery of counselling services to caregivers for the elderly (P < 0.001).

Conclusion

The current state of medication counselling services in Saudi MOH facilities indicates that chronic disease and polypharmacy are the most significant reasons for referral to counselling, and that the subjects discussed the most during counselling are general knowledge about medication, duration of therapy and missed doses. Patients with chronic diseases have a higher frequency of referral to counselling and discussion about polypharmacy and its consequences than those without chronic conditions. Elderly patients also show a high frequency of referral to counselling about chronic diseases and polypharmacy. Caregivers of elderly patients require more education to maximise counselling effectiveness as they attend the majority of elderly patient counselling sessions.

Disaster Preparedness Amongst Emergency Pharmacists for the FIFA World Cup Qatar 2022™: A Cross-Sectional Survey

Purpose

The aim of this study is to assess the level of preparedness of pharmacists working in the emergency department at Hamad Medical Corporation (HMC) for any emergency disasters that may take place during the FIFA World Cup Qatar 2022™ by evaluating their awareness (A), attitude (A), and readiness (R).

Methods

A cross-sectional quantitative observational study was conducted through a web-based survey. The survey was distributed among emergency pharmacists working in general hospitals under HMC. The questionnaire was composed of three major domains assessing awareness, attitude, readiness, as well as an additional domain to collect the participants' demographics. Student's t-test, analysis of variance, Pearson's correlation, and linear regression were used with an alpha level of 0.05.

Results

Most pharmacists working in the emergency departments at HMC had high levels of awareness (76.9%), attitude (92%), and readiness (53.8%) for any emergency disasters that may occur during the FIFA World Cup 2022. Nonetheless, almost half of the respondents reported moderate level of readiness for emergency events. Pharmacists with >10 years' practice experience had significantly higher AAR score compared to those with <5 years' experience (P = 0.002). Significant direct positive correlations were found among the 3 AAR parameters (P < 0.05). Attitude was found to be a significant predictor of readiness (P < 0.05). A model composed of attitude and awareness could predict 12% of readiness score.

Conclusion

Emergency pharmacists at HMC have high level of preparedness for any emergency disaster event during the World Cup. Future research should focus on the development of theory-based action framework for pharmacy departments during mass gathering events.

Prevalence and global trends of polypharmacy in patients with chronic kidney disease: A systematic review and meta-analysis

Background and objectives: Polypharmacy and chronic kidney disease (CKD) are becoming increasingly common due to an ageing population and the rise of multimorbidity. In line with the therapeutic guidelines, managing CKD and its complications necessitates prescribing multiple medications, which predisposes patients to polypharmacy. The aim of this systematic review and meta-analysis is to describe the prevalence of polypharmacy in patients with CKD and to explore the global trends of factors driving any apparent variability in prevalence estimates. Methods: PubMed, Scopus, the Cochrane Database of Systematic Reviews (CDSR), and Google Scholar were searched from 1999 to November 2021. Study selection, data extraction, and critical appraisal were conducted by two independent reviewers. The pooled prevalence of polypharmacy was estimated utilizing the random effects model using the default double arcsine transformation. Results: This review involved 14 studies comprising of 17 201 participants, a significant proportion of which were males (56.12%). The mean age of the review population was 61.96 (SD ± 11.51) years. The overall pooled prevalence of polypharmacy amongst patients with CKD was 69% (95% CI: 49%-86%) (I2 = 100%, p < 0.0001), with a proportionately higher prevalence in North America and Europe as compared to Asia. Conclusion: The results from this meta-analysis showed a high pooled prevalence estimates of polypharmacy amongst patient cohorts with CKD. The exact interventions that are likely to significantly mitigate its effect remain uncertain and will need exploration by future prospective and systematic studies. Systematic Review Registration: [https://www.crd.york.ac.uk/prospero/], identifier [CRD42022306572].

An umbrella review of systematic reviews on contributory factors to medication errors in health-care settings

INTRODUCTION

Medication errors are common events that compromise patient safety and are prevalent in all health-care settings. This umbrella review aims to systematically evaluate the evidence on contributory factors to medication errors in health-care settings in terms of the nature of these factors, methodologies and theories used to identify and classify them, and the terminologies and definitions used to describe them.

AREAS COVERED

Medline, Cumulative Index to Nursing and Allied Health Literature, Embase, and Google Scholar were searched from inception to March 2022. The data extraction form was derived from the Joanna Briggs Institute (JBI) Reviewers' Manual, and critical appraisal was conducted using the JBI quality assessment tool. A narrative approach to data synthesis was adopted.

EXPERT OPINION

Twenty-seven systematic reviews were included, most of which focused on a specific health-care setting or clinical area. Decision-making mistakes such as non-consideration of patient risk factors most commonly led to error, followed by organizational and environmental factors (e.g. understaffing and distractions). Only 10 studies had a pre-specified methodology to classify contributory factors, among which the use of theory, specifically Reason's theory was commonly used. None of the reviews evaluated the effectiveness of interventions in preventing errors. The collated contributory factors identified in this umbrella review can inform holistic theory-based intervention development.