Evaluating the Prevalence of Burnout Among Health Care Professionals Related to Electronic Health Record Use: Systematic Review and Meta-Analysis

Background: Burnout among health care professionals is a significant concern, with detrimental effects on health care service quality and patient outcomes. The use of the electronic health record (EHR) system has been identified as a significant contributor to burnout among health care professionals. Objective: This systematic review and meta-analysis aims to assess the prevalence of burnout among health care professionals associated with the use of the EHR system, thereby providing evidence to improve health information systems and develop strategies to measure and mitigate burnout. Methods: We conducted a comprehensive search of the PubMed, Embase, and Web of Science databases for English-language peer-reviewed articles published between January 1, 2009, and December 31, 2022. Two independent reviewers applied inclusion and exclusion criteria, and study quality was assessed using the Joanna Briggs Institute checklist and the Newcastle-Ottawa Scale. Meta-analyses were performed using R (version 4.1.3; R Foundation for Statistical Computing), with EndNote X7 (Clarivate) for reference management. Results: The review included 32 cross-sectional studies and 5 case-control studies with a total of 66,556 participants, mainly physicians and registered nurses. The pooled prevalence of burnout among health care professionals in cross-sectional


Introduction
The integration of electronic health record (EHR) into health care systems marks the beginning of a new era in medical information management, with significant potential benefits for patient care, clinical decision-making, and administrative efficiency [1,2].EHR systems are central to the modern health care infrastructure [3].Along with these benefits, however, the widespread adoption of EHR systems has raised concerns about the well-being of health care professionals [4,5].Unintended consequences, such as burnout among health care professionals, technology-related errors, and increased safety risks, have been associated with EHR use [4,6,7].In addition, a notable part of the problems with EHR systems in the United States is the need to provide additional documentation for insurance companies [8].
Within the realm of EHR use, burnout among health care professionals, characterized by emotional exhaustion, depersonalization, and a diminished sense of personal accomplishment, has emerged as a critical concern [9,10].Burnout among health care professionals has become a pressing public health concern [11][12][13].Some studies have reported an average burnout prevalence of 44% [2], with rates exceeding 80% in some specific settings and departments [4,5] such as primary care and emergency departments.This pervasive problem affects not only health care professionals but also patients, with negative consequences such as reduced quality of care and increased medical errors and psychological problems [14][15][16][17].The estimated annual cost of burnout among health care professionals due to medical negligence and staff turnover exceeds US $4 billion [18].
The phenomenon of burnout among health care professionals goes beyond individual distress and has significant implications for patient safety, quality of care, and overall health system performance [14,15,19].Understanding the prevalence and underlying factors of EHR-related burnout among health care professionals is critical to developing effective interventions and policy adaptations.These interventions are essential to mitigate this burden and ensure the long-term sustainability of EHR implementation in health care [19,20].The increase in EHR-related burnout among health care professionals reflects a multifaceted interplay of factors, including increased documentation requirements, cumbersome user interfaces, and the rapid pace of technological development [9,16,18].This systematic review and meta-analysis aims to provide a comprehensive assessment of the existing literature on EHR-related provider burnout.It seeks to capture the full extent of burnout, identify its causes, and provide evidence-based support and recommendations to alleviate this pervasive problem.In addition, we hypothesize that specific features of EHR systems, such as user interface design or increased documentation requirements, may contribute to provider burnout.We hope that this work will serve as a guide for health care organizations, policy makers, and EHR developers in developing interventions and technological improvements that prioritize the well-being of health care professionals.In doing so, we can promote a sustainable and resilient health care system while harnessing the potential benefits of EHR systems to improve patient care.

Study Guidelines
We focused on studies that directly measured burnout, as it is often considered in existing research to be a distinct emotional state, separate from depression or anxiety.This systematic review followed the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines [21] and was registered with PROSPERO (CRD42021281173).Details of the guidelines and registration can be found in Multimedia Appendices 1 and 2, respectively.

Definitions
Our definitions of burnout were based on the Maslach Burnout Inventory-Human Services Survey instrument (MBI-HSS) [13,22], which characterizes burnout with high emotional exhaustion as a score ≥27, high depersonalization as >10, and low personal accomplishment as <33.Across the included studies, burnout was defined inconsistently, with definitions ranging from any one of the 3 items to all 3 items.In cases where the same study examined multiple definitions of burnout, we used the most common definition (high emotional exhaustion, high depersonalization, and low personal accomplishment) for the meta-analysis.For alternative definitions, such as those from the Stanford Physician Wellness Survey [23] or mini-Z [24], only outcomes explicitly described as burnout were documented.We categorized studies according to the measurement tool and definition of burnout.

Search Strategy
We systematically searched PubMed, Embase, and Web of Science to identify relevant peer-reviewed English language studies published between January 1, 2009, and December 31, 2022.We used several search terms to capture EHR systems, including "electronic health record" and its abbreviation "EHR," as well as "electronic medical record (EMR)" and "computerized physician order entry (CPOE)."To capture the phenomenon of burnout, we used terms such as "burnout," "alert fatigue," and "exhaustion."In defining our study participants, we considered a spectrum of health care professionals, including "doctor," "clinician," "physician," "surgeon," "medical staff," and "health care provider."On June 30, 2023, the researchers conducted a literature search in databases such as PubMed, Embase, and Web of Science, following the previously established search strategy.No papers were found that met the inclusion criteria for this review.
The terms were combined using Boolean logic and then filtered by publication date and language (English).A full description of the search strategy can be found in Multimedia Appendix 3. In addition, we carefully examined the references of each article and manually added 5 relevant references to our review list.Duplicate studies were systematically excluded from consideration.

Inclusion and Exclusion Criteria
Figure 1 shows the search and selection process.We applied strict inclusion and exclusion criteria to identify original and observational studies relevant to our research objectives.We included studies that examined general EHR use or specific supporting systems such as computerized physician order entry.We focused on studies that directly assessed burnout among health care professionals and individual psychological responses to EHR systems.Our review included the following types of research: cohort studies, case-control studies, and cross-sectional studies.EHR-related burnout was assessed using validated tools such as the MBI-HSS, the mini-Z, or other similar measures.The following publication types were excluded: abstracts, editorials, letters, reviews, commentaries, guidelines, and studies by non-health care professionals.In addition, studies were excluded if the necessary data could not be obtained from the corresponding author.We also excluded studies that repeated data already published in the literature.
Two reviewers independently screened all titles and abstracts to assess for relevance.Full texts of articles identified for further review were then assessed against the inclusion criteria.In cases of disagreement about the study eligibility of studies, a third reviewer was consulted for resolution.

Data Extraction and Synthesis
For the included studies, we extracted relevant information including study design, geographical region, study duration, medical specialties involved, sample size, and relevant outcomes.The main outcomes included the prevalence of burnout in cross-sectional studies, the odds ratio (OR) along with its 95% CI in case-control studies, and the factors influencing burnout.We also documented the specific tools or measures used to assess these outcomes.

Risk of Bias Assessment
Two reviewers assessed the integrity, confirmability, and quality of the cross-sectional studies using the Joanna Briggs Institute (JBI) checklist [25] and the Newcastle-Ottawa Scale (NOS) [26] for the included case-control studies.Details of these assessments can be found in Multimedia Appendices 4-6, respectively.

Statistical Analysis
Meta-analysis was performed using R software (version 4.1.3;R Foundation for Statistical Computing).Heterogeneity was XSL • FO RenderX calculated using the Cochran Q test, and statistical significance was set at P<.05.If there was no statistical heterogeneity (I 2 <50%), the fixed-effects model was used to pool results; otherwise (I 2 >50%) the random-effects model was used [27,28].We grouped the main outcomes according to the predictor and moderator factors described by the participants and derived from the outcome reports.Continuous variables were summarized using the mean and standardized mean difference, whereas rates were extracted for categorical variables.For cross-sectional studies, the effect size measure was the prevalence of burnout and its corresponding 95% CI.For case-control studies, the effect of EHR was assessed using the pooled OR and its 95% CI.Publication bias was analyzed using the Egger test [29] and the trim-fill funnel plot.A sensitivity analysis was performed for each omitted method to determine the robustness and reliability of the results.

Characteristics of the Included Studies
After reviewing a total of 2776 studies, 37 were selected for inclusion in our analysis (Figure 1) according to the predefined criteria and after elimination of duplicates.The baseline characteristics of the selected studies are summarized in Tables 1 and 2. For further details see Multimedia Appendix 7 [6,.
The studies included in our review covered the period from 2009 to 2022 and included regions in both Canada and the United States.They involved a total of 66,556 health care professionals.The sample sizes of these studies varied widely from 84 to 25,018 participants, and the response rates ranged from 8.9% to 73.0%.The primary measure used to assess burnout in the majority of studies was the MBI-HSS, which was used in 17 of 37 studies (46%).In addition, the mini-Z scale was used in 10 studies (27%).Notably, 2 studies using the MBI-HSS used cutoff definitions for burnout subcomponents that followed the standardized recommendations of the MBI-HSS.[65] a OR: odds ratio.
b EHR: electronic health record.

Quality of Included Studies
The quality of the cross-sectional studies was assessed using the JBI checklist.Of the cross-sectional studies reviewed, only 16 had a response rate of more than 50%.In addition, 24 studies provided a clear and precise description of their inclusion and exclusion criteria for participants.Additionally, 32 cross-sectional studies provided a detailed and thorough statistical analysis of their data and results.We used the NOS to assess the risk of bias and the overall quality of the case-control studies.In particular, one study failed to clarify its selection criteria for the control group and comparability with the exposed group, which resulted in a high risk of selection bias.Furthermore, none of the 5 case-control studies reported information on the nonresponse population, indicating a high risk of nonresponse bias.Overall, the risk of bias in the case-control studies was assessed as moderate.A full breakdown of the quality assessment for each study can be found in Multimedia Appendices 4 [6, and 5 [61][62][63][64][65].
In our meta-analysis, we examined 37 studies that focused on identifying the prevalence of burnout associated with EHR use, involving a total of 66,556 health care professionals.The internal heterogeneity of 37 cross-sectional studies was evident in all included cross-sectional studies (I 2 =98.3%).Using random-effects models, we calculated the combined overall prevalence of EHR-related burnout of 40.4% (95% CI 37.6%-43.2%).Subgroup analysis showed that studies using the MBI-HSS reported a higher pooled prevalence of burnout (41.4%) than those using the mini-Z (35.1%) but lower than those using other instruments (43.2%).However, these differences were not statistically significant (Figures 2 and 3).

Publication Bias
The Egger test and the funnel plot were used to estimate the publication bias in the included studies (t=1.35,P=.18), indicating no significant publication bias.The distribution of the points in the funnel plot is symmetric.There was no statistical difference in publication bias.The results are available in Multimedia Appendices 8 and 9.

Sensitivity Analysis
Sensitivity analysis was performed using the individual omission method.The results showed that no single study had a significant effect on the pooled prevalence of burnout.The results of the sensitivity analysis indicated that the meta-analysis was robust.

The Association Between Time Spent on the EHR and Burnout
Data from 5 case-control studies with 27,784 participants were available for the meta-analysis of the time spent on EHR and burnout prevalence.There was no significant within-study heterogeneity (I 2 =7.2%, P=.37), and a longer duration of EHR use was associated with a higher prevalence of burnout (OR 2.43, 95% CI 2.31-2.57)(Figure 4).Forest plot of the association between the time spent using EHR and the risk of burnout [61][62][63][64][65]. EHR: electronic health record; IV: inverse variance methods; OR: odds ratio; SE: standard error of the TE; TE: take the logarithm of the effect value.

Main Causes of Burnout and Proposed Solutions
We have summarized the factors contributing to burnout among health care professionals in relation to EHR use in Table 3.Among these, challenges related to the design and availability of EHR systems were identified as the most significant contributors, as evidenced by 32 studies.Complaints from EHR users focused on several key issues: disruption to workflow [33]; cumbersome data entry (copy and paste) [59]; reduced direct communication with patients [38]; and annoyance with redundant, repetitive, or irrelevant alerts [52].Poor EHR design has been shown to reduce work productivity and lead to prolonged EHR use [51,64].This prolonged use has a negative impact on work-life balance of health care professionals and increasing burnout [42,57,65,66].Workload factors, identified in 18 of the 32 studies, further exacerbate this problem.Specific aspects of workload that contribute to burnout include the number of hours worked per week [62][63][64], the frequency of night shifts [46,60], administrative documentation tasks [33,35,38,48,64], the volume of patient admissions [30,35,56], and the amount of information to manage in the EHR inbox [34,37,40].Together, these factors exacerbate provider fatigue and increase the risk of burnout.
EHR usability, recognized as a contributing factor to burnout, relates to issues of accessibility and functionality of the system.This includes instances where the system is frequently unavailable due to maintenance, updates, or technical failures, as well as situations where the system is not user-friendly and requires excessive time to navigate and use effectively, potentially leading to burnout among health care professionals.
The factors contributing to burnout identified in the reviewed studies fall into 3 main categories: EHR use, work environment and organizational support, and the personal factors.Table 4 provides a summary of strategies to address these contributing factors.For example, the burden of medical clerical tasks imposed by EHR systems suggests the need to employ assistants or scribes to reduce the workload of health care professionals [31,67].Evidence suggests that the EHR system itself can be improved by involving clinical staff in the design process [33], optimizing the user interface [39,64], minimizing the number of clicks required [52], and actively soliciting and incorporating user feedback [32].In addition, some practitioners may not fully use health information technology in their roles and may be frustrated with EHR systems or similar systems [32].To address this, health care organizations are advised to establish clear policies and procedures before implementing an EHR system and to provide ongoing health information technology education to reduce technology-related anxiety among users [32,52,68].Finally, comprehensive and systematic initiatives are essential to effectively reduce burnout.Health care professionals are encouraged to work together to advocate for legislative and regulatory changes that ensure reasonable working hours, mandatory breaks, and safeguards against burnout [36,42,43,58,62].
Moreover, research also suggests that sociodemographic characteristics, interpersonal dynamics, and the work environment have a significant impact on the prevalence of burnout.In particular, factors such as being female, younger, and less experienced correlate with higher rates of burnout [34,48,55].Conversely, high levels of satisfaction or positive perspectives on the use of EHR systems may reduce burnout [36,42,58].[36] Average additional 10 minutes spent on EHR after each visit; less efficient at completing EHR and inbox information Perception positive attitudes about the effect of EHR or satisfied with EHR Clinical full-time equivalents >0.9 and more incomplete messages in inbox Cross-sectional Tran et al [37] Managing in-basket messages generated by EHR; dissatisfaction with EHR EHR optimization; improve physician efficiency; and job satisfaction Female gender and dissatisfaction for clerical tasks Cross-sectional Marckini et al [38] Excessive data inputting in EHR; using EHR at home; frustrated with EHR Perception positive attitudes about the effect of EHR or satisfied with EHR Primary care specialties, female gender, and reporting poor or marginal time for documentation Cross-sectional Gardner et al [39] Using EHR outside working or at home; excessive data inputting in EHR; manag-Copy and paste used in EHR documentation; assist with inbox tasks and create 2 administrative "desktops" High volume of patient call messages in the system and lack of control over workload Cross-sectional Hilliard et al [40] ing  [61] >90 minutes on the EHR outside of the workday Report system to cover personal illness or emergency; access to mental health services; reduce EHR and clerical burden Working hours per week >70 hours Case-control Sharp et al [62] Using EHR outside working (>90 minutes/day); EHR adds to daily work frustration Reducing time spent on EHR and clerical tasks Clerical work time (>60 minutes/day) and poorer work-life integration Case-control Peccoralo et al [63] Using EHR outside working or at home; EHR adding to daily frustration Improve EHR usability; documentation practices optimization Insufficient time for documentation Case-control Harris et al [64] Extra time spent on EHR per week >6 hours

EHR proficiency training Dissatisfaction with work-life balance and female gender
Case-control Robertson et al [65] a EHR: electronic health record.

Working environment and organizational support
Regularly optimize and update the system based on user feedback Institutions introduce mechanisms for regular assessment of EHR efficacy Design and optimize the workflow to ensure that the EHR aligns with the health care professional's actual work, reducing unnecessary steps and improving work efficiency Establish a schedule, routine, and workflow Provide appropriate human resources, such as medical assistants, scribes, and improving teamwork to distribute workload among health care professionals Enhance peer, managerial, and technical support Establish clear policies and legislation to define the purpose, scope, and duration of EHR use, to delineate the responsibilities and obligations of health care professionals, and to reduce confusion and burnout

Personal
Counseling services and mindfulness meditation therapy help health care professionals better manage work stress and reduce their psychological distress Use of mental health resources and services Plan career paths and training programs and create an environment for career development and learning Encourage academic and career development a EHR: electronic health record.

Key Findings
This study explores the relationship between burnout and health care professionals.Our analysis revealed several key findings.First, the prevalence of burnout differs between assessment instruments, with the MBI-HSS indicating higher levels of burnout.However, this difference was not statistically significant.Second, there was a positive association between the average daily duration of EHR use and the risk of burnout.In particular, reducing the administrative burnout emerged as an effective strategy to reduce the risk of burnout [63].Third, positive perceptions of the EHR and constructive work attitudes were correlated with the reduction in burnout.
The MBI-HSS is valued for its extensive validation and widespread acceptance as an essential tool for assessing burnout.Our findings suggest that the MBI-HSS may report higher rates of burnout due to several factors: sensitivity to burnout constructs-unlike self-report measures, which may rely predominantly on respondents' respondents' subjective feelings, the MBI-HSS comprehensively assesses burnout across multiple dimensions: emotional exhaustion, depersonalization, and personal accomplishment.This multidimensional assessment provides a nuanced perception of burnout, encompassing both its physical and psychological facets.These include the following: standardized cut-off scores-the MBI-HSS delineates specific cut-off scores for its dimensions, establishing clear criteria for identifying significant levels of burnout.This standardization promotes a consistent classification framework for burnout, which may contribute to the higher prevalence rates reported.Comprehensive assessment-the multidimensional approach of the MBI-HSS allows for a comprehensive assessment of burnout, including emotional exhaustion, depersonalization, and personal accomplishment.This thorough assessment is able to uncover more precise and detailed manifestations of burnout, thereby increasing detection rates.Benchmark for comparison-the MBI-HSS is often used as a benchmark for validating alternative burnout measures, and differences in results when compared with other instruments do not necessarily indicate a variance in prevalence.Rather, these differences underscore the accuracy of the MBI-HSS and the comprehensive scope of its assessment.The use of different instruments underlines the heterogeneity observed in our study results.

Solutions
This study demonstrates a robust relationship between workload, time spent using EHR, and burnout.Through a systematic review, we outline several pragmatic recommendations aimed at mitigating these problems.

Reduce Documentation and EHR Workload
A key strategy for alleviating workload concerns is to adopt a rational task allocation and effective teamwork model.Previous research highlights the effectiveness of this approach in reducing workload pressures [33,53].By integrating medical assistants and scribes into the health care team, it is possible to distribute clerical tasks more evenly, thereby reducing the burden on health care professionals.This redistribution not only reduces workload but also increases overall operational efficiency [53,69,70].In addition, the provision of targeted training is critical to improving teamwork dynamics, communication skills, and workflow efficiency.Such training efforts aim to cultivate a competent team capable of optimizing and streamlining workflow processes.The ultimate goal is to minimize documentation and EHR-related workloads, thereby making a significant contribution to reducing burnout among health care professionals [58,63].

Optimizing EHR and Training Courses
Continuous refinement of EHR systems through improved design, functionality, and integration of predesigned templates and phrases effectively increases system efficiency.The elimination of redundant steps and interactions further improves the user experience [32,71].For example, customizing templates to include commonly used medical advice and alerts tailored to the specific needs of different departments significantly increases EHR efficiency [48,72].Numerous studies have highlighted the critical role of improving user interaction with the EHR system.Developing a user-friendly interface that minimizes unnecessary clicks and reduces redundant and irrelevant data entry has been shown to significantly improve the user experience.Such improvements also significantly reduce the cognitive burden on health care professionals, resulting in a more streamlined and efficient health care delivery process [32,39,42].In addition, comprehensive training and strong technical support are critical to improving the efficiency and effectiveness of EHR use.Systematic training aimed at promoting EHR proficiency among health care professionals can significantly improve operational efficiency and mitigate the effects of technology stress [46,58].Research emphasizes the importance of training health care professionals to enhance EHR use and tailoring templates to specific clinical workflows.

Artificial Intelligence-Based Solutions
The integration of artificial intelligence (AI) into EHR systems represents a significant frontier for improvement.Innovations in machine learning, natural language processing (NLP), and large language models (LLMs) are poised to significantly increase the intelligence and automation capabilities of EHR systems [73,74].Incorporating speech recognition and automated dictation or note-taking into hospital workflows can streamline the creation of medical documents, thereby increasing operational efficiency [75].NLP is characterized by its ability to efficiently organize both unstructured and semistructured textual records, thereby facilitating a reduction in paperwork [76,77].Recent research has highlighted the utility of LLMs, such as GPT-4, as powerful tools for medical documentation [78,79].The use of technologies such as GPT-4 as a linguistic assistant or the use of intelligent templates can significantly speed up the medical documentation process for health care professionals, while improving the accuracy of documentation [79].In addition, the researchers developed a data-driven method to generate recommendations for refining alert criteria through an explainable AI framework [80].This advancement directly addresses the issue of overalerting in clinical decision support systems, which has been identified as a potential contributor to XSL • FO RenderX burnout among health care professionals.By reducing unnecessary alerts, this approach promises to reduce the cognitive and operational workload of health care professionals, thereby improving both the quality of patient care and the work-life balance of health care staff.While AI technology could potentially help reduce burnout, it is important to recognize that the causes of burnout are complex and require further research.

Implications for Future Research
There is considerable evidence to support the need for comprehensive redesign of EHR systems to improve efficiency [32,51,53,81].However, the literature reveals a paucity of published empirical research quantifying EHR limitations, user fatigue and burnout.While some studies have indirectly demonstrated the poor usability of EHR by measuring pupillary reflex and cognitive fatigue [82,83], claims of inefficiency are primarily based on subjective perceptions of users.Thus, there is a need for more studies that objectively assess usability and user experience.Future research should aim to quantitatively assess the usability of EHR systems and their impact on the physical and mental well-being of health care professionals.
Furthermore, the incorporation of AI, specifically LLMs, into EHR systems is an important future research direction to reduce burnout among health care professionals.Such research could include, but is not limited to, (1) reducing the amount of time health care professionals spend on nonclinical tasks by automating administrative tasks, including data entry, scheduling, and patient history taking; (2) using LLMs to efficiently generate and review medical documentation to ensure high quality and consistency of documentation while saving time; (3) improving the interpretability and transparency of clinical decision support to provide clinicians with trustworthy decision support to reduce their cognitive load; and (4) ensuring the ethical use of AI to guarantee that AI systems are used ethically and that algorithms are unbiased.The integration of AI into EHR systems must comply with strict privacy regulations to protect patient privacy [84].Exploring the potential of AI could make a significant contribution to creating a more supportive and efficient health care ecosystem [73,79,85].

Limitations
This review has several limitations.First, it has a language bias by including only peer-reviewed literature published in English.This limitation may introduce information and selection bias by omitting non-English studies that may provide valuable insights or alternative viewpoints on the topic.Second, the internal heterogeneity of the included studies is remarkably high, with significant differences in methodology, participant demographics, and outcome measures between studies, which may bias the synthesis of findings.In addition, the geographical distribution of the selected studies is dominated by North American research, with only 1 study from Iran.This distribution may introduce regional bias, as health care practices and experiences in these areas may not accurately reflect global patterns.
In addition, the temporal scope of the study, covering the years 2020 to 2022, was significantly influenced by the COVID-19 pandemic.Data collected during this period may be subject to bias or inaccuracy due to the unprecedented impact of the pandemic on global health systems.Additionally, the pandemic introduced new stressors and challenges for health care professionals, which may have influenced the incidence and manifestation of their burnout.These factors should be carefully considered when interpreting the study results, as they may limit the generalizability and significance of the findings beyond the specific context and timeframe of the pandemic.

Conclusions
This review highlights the significant impact of the EHR and the workload of health care professionals on burnout and emphasizes the need for targeted solutions such as workflow optimization, improved training, and the use of medical scribes.It also identifies that the potential of AI to improve EHR efficiency is a promising direction.Despite these findings, there remains a critical need for empirical research to accurately quantify the challenges associated with EHR use and their impact on provider well-being.Future studies are encouraged to explore innovative solutions to foster a more supportive health care environment.

Figure 4 .
Figure 4. Forest plot of the association between the time spent using EHR and the risk of burnout[61][62][63][64][65].EHR: electronic health record; IV: inverse variance methods; OR: odds ratio; SE: standard error of the TE; TE: take the logarithm of the effect value.
b NICU: neonatal intensive care unit.c CPOE: computerized physician order entry.d HIT: health information technology.e CLOC: clinician logged-in outside clinic time.

Table 1 .
Characteristics of the cross-sectional studies.

Table 2 .
Characteristics of the case-control studies.

Table 3 .
The influencing factors of burnout for studies.

Table 4 .
Proposed solutions for burnout mentioned.