Quality Indicators for Major Depressive Disorder in Adults: A Review of Performance Measures by the American College of Physicians.

Major depressive disorder (MDD) is a severe mood disorder that affects at least 8.4% of the adult population in the United States. Characteristics of MDD include persistent sadness, diminished interest in daily activities, and a state of hopelessness. The illness may progress quickly and have devastating consequences if left untreated. Eight performance measures are available to evaluate screening, diagnosis, and successful management of MDD. However, many performance measures do not meet the criteria for validity, reliability, evidence, and meaningfulness.The American College of Physicians (ACP) embraces performance measurement as a means to externally validate the quality of care of practices, medical groups, and health plans and to drive reimbursement processes. However, a plethora of performance measures that provide low or no value to patient care have inundated physicians, practices, and systems and burdened them with collecting and reporting of data. The ACP's Performance Measurement Committee (PMC) reviews performance measures using a validated process to inform regulatory and accreditation bodies in an effort to recognize high-quality performance measures, address gaps and areas for improvement in performance measures, and help reduce reporting burden. Out of 8 performance measures, the PMC found only 1 measure (suicide risk assessment) that was valid at all levels of attribution. This paper presents a review of MDD performance measures and highlights opportunities to improve performance measures addressing MDD management.

Performance Measures for Physicians Providing Clinical Care Using Telemedicine: A Position Paper From the American College of Physicians.

There has been an exponential growth in the use of telemedicine services to provide clinical care, accelerated by the COVID-19 pandemic. Clinical care delivered via telemedicine has become a major and accepted method of health care delivery for many patients. There is an urgent need to understand quality of care in the telemedicine environment. This American College of Physicians position paper presents 6 recommendations to ensure the appropriate use of performance measures to evaluate quality of clinical care provided in the telemedicine environment.

Quality Indicators for Osteoporosis in Adults: A Review of Performance Measures by the American College of Physicians.

Primary osteoporosis is characterized by decreasing bone mass and density and reduced bone strength that leads to a higher risk for fracture, especially hip and spine fractures. The prevalence of osteoporosis in the United States is estimated at 12.6% for adults older than 50 years. Although it is most frequently diagnosed in White and Asian females, it still affects males and females of all ethnicities. Osteoporosis is considered a major health issue, which has prompted the development and use of several performance measures to assess and improve the effectiveness of screening, diagnosis, and treatment. These performance measures are often used in accountability, public reporting, and/or payment programs. However, the reliability, validity, evidence, attribution, and meaningfulness of performance measures have been questioned. The purpose of this paper is to present a review of current performance measures on osteoporosis and inform physicians, payers, and policymakers in their selection of performance measures for this condition. The Performance Measurement Committee identified 6 osteoporosis performance measures relevant to internal medicine physicians, only 1 of which was found valid at all levels of attribution. This paper also proposes a performance measure concept to address a performance gap for the initial approach to therapy for patients with a new diagnosis of osteoporosis based on the current American College of Physicians guideline.

Reducing Acute Hospitalizations at High-Performing CPC+ Primary Care Practice Sites: Strategies, Activities, and Facilitators.

PURPOSE: Despite evidence suggesting that high-quality primary care can prevent unnecessary hospitalizations, many primary care practices face challenges in achieving this goal, and there is little guidance identifying effective strategies for reducing hospitalization rates. We aimed to understand how practices in the Comprehensive Primary Care Plus (CPC+) program substantially reduced their acute hospitalization rate (AHR) over 2 years. METHODS: We used Bayesian analyses to identify the CPC+ practice sites having the highest probability of achieving a substantial reduction in the adjusted Medicare AHR between 2016 and 2018 (referred to here as AHR high performers). We then conducted telephone interviews with 64 respondents at 14 AHR high-performer sites and undertook within- and cross-case comparative analysis. RESULTS: The 14 AHR high performers experienced a 6% average decrease (range, 4% to 11%) in their Medicare AHR over the 2-year period. They credited various care delivery activities aligned with 3 strategies for reducing AHR: (1) improving and promoting prompt access to primary care, (2) identifying patients at high risk for hospitalization and addressing their needs with enhanced care management, and (3) expanding the breadth and depth of services offered at the practice site. They also identified facilitators of these strategies: enhanced payments through CPC+, prior primary care practice transformation experience, use of data to identify high-value activities for patient subgroups, teamwork, and organizational support for innovation. CONCLUSIONS: The AHR high performers observed that strengthening the local primary care infrastructure through practice-driven, targeted changes in access, care management, and comprehensiveness of care can meaningfully reduce acute hospitalizations. Other primary care practices taking on the challenging work of reducing hospitalizations can learn from CPC+ practices and may consider similar strategies, selecting activities that fit their context, personnel, patient population, and available resources.

A Cautionary Tale: Exploring Stakeholder Emotions During Curricular Change Using Group Concept Mapping.

PhenomenonCurricular change is essential but challenging. Change efforts often struggle and some fail due to well-articulated challenges as well as other barriers less understood. The curricular change literature characterizes the organizational and operational features of successful change yet virtually ignores stakeholder emotions. A deeper understanding of these emotional responses during the change process could enhance participant and organizational well-being and support change success. Approach In 2019, data were collected at one large North American medical school using group concept mapping methodology, an asynchronous mixed methods approach. We sought to generate themes characterizing the emotional responses of faculty, administrative staff, and students across multiple stakeholder groups participating in the new and traditional (legacy) curricula 27 months after curricular change initiation. Participants brainstormed, sorted, and rated statements on emotional responses. Rating participants rated each statement using a Likert scale from 1 (does not resonate) to 4 (very strongly resonates) according to this prompt: "This emotional response resonates with my emotional experience during the curricular change." Multidimensional scaling and hierarchical cluster analyses were used to generate emotional profiles and compare them across stakeholders. Findings Of 335 stakeholders invited, 123 contributed to brainstorming (36.7%), 153 completed rating (45.7%) and 33 completed sorting (9.9%). Participants generated six themes of emotional responses to curricular change: enthusiastic, apprehensive, overwhelmed, missed opportunities, uncertain, and abandoned. The enthusiastic theme overall had the highest mean statement ratings while the abandoned theme had the lowest. Demographic subgroup analysis revealed new curriculum students (Class of 2021) were most enthusiastic while legacy curriculum students (Class of 2020) were more likely to feel abandoned. Overall, faculty and administrative staff were more enthusiastic than students whereas students rated the five other themes higher than faculty and administrative staff. InsightsCurricular change is emotionally taxing. Students in both curricula experienced greater uncertainty, apprehension, sense of missed opportunities, and feeling overwhelmed than did faculty and administrative staff. Legacy curriculum students rated statements in the abandoned cluster highest while new curriculum students rated statements in the enthusiastic cluster highest. Given the ubiquity of curricular change which often includes a legacy cohort, medical schools embarking on this journey must carefully attend to the varied emotional responses of their different stakeholder groups. The very activities recommended by organizational change models used in medical education, such as communicating wins early and often, could alienate legacy students, creating emotional polarization. These findings suggest that tailored communication strategies are necessary during change implementation to optimize success.

Effects of the Million Hearts Model on Myocardial Infarctions, Strokes, and Medicare Spending: A Randomized Clinical Trial.

Importance: The Million Hearts Model paid health care organizations to assess and reduce cardiovascular disease (CVD) risk. Model effects on long-term outcomes are unknown. Objective: To estimate model effects on first-time myocardial infarctions (MIs) and strokes and Medicare spending over a period up to 5 years. Design, Setting, and Participants: This pragmatic cluster-randomized trial ran from 2017 to 2021, with organizations assigned to a model intervention group or standard care control group. Randomized organizations included 516 US-based primary care and specialty practices, health centers, and hospital-based outpatient clinics participating voluntarily. Of these organizations, 342 entered patients into the study population, which included Medicare fee-for-service beneficiaries aged 40 to 79 years with no previous MI or stroke and with high or medium CVD risk (a 10-year predicted probability of MI or stroke [ie, CVD risk score] ≥15%) in 2017-2018. Intervention: Organizations agreed to perform guideline-concordant care, including routine CVD risk assessment and cardiovascular care management for high-risk patients. The Centers for Medicare & Medicaid Services paid organizations to calculate CVD risk scores for Medicare fee-for-service beneficiaries. CMS further rewarded organizations for reducing risk among high-risk beneficiaries (CVD risk score ≥30%). Main Outcomes and Measures: Outcomes included first-time CVD events (MIs, strokes, and transient ischemic attacks) identified in Medicare claims, combined first-time CVD events from claims and CVD deaths (coronary heart disease or cerebrovascular disease deaths) identified using the National Death Index, and Medicare Parts A and B spending for CVD events and overall. Outcomes were measured through 2021. Results: High- and medium-risk model intervention beneficiaries (n = 130 578) and standard care control beneficiaries (n = 88 286) were similar in age (median age, 72-73 y), sex (58%-59% men), race (7%-8% Black), and baseline CVD risk score (median, 24%). The probability of a first-time CVD event within 5 years was 0.3 percentage points lower for intervention beneficiaries than control beneficiaries (3.3% relative effect; adjusted hazard ratio [HR], 0.97 [90% CI, 0.93-1.00]; P = .09). The 5-year probability of combined first-time CVD events and CVD deaths was 0.4 percentage points lower in the intervention group (4.2% relative effect; HR, 0.96 [90% CI, 0.93-0.99]; P = .02). Medicare spending for CVD events was similar between the groups (effect estimate, -$1.83 per beneficiary per month [90% CI, -$3.97 to -$0.30]; P = .16), as was overall Medicare spending including model payments (effect estimate, $2.11 per beneficiary per month [90% CI, -$16.66 to $20.89]; P = .85). Conclusions and Relevance: The Million Hearts Model, which encouraged and paid for CVD risk assessment and reduction, reduced first-time MIs and strokes. Results support guidelines to use risk scores for CVD primary prevention. Trial Registration: ClinicalTrials.gov Identifier: NCT04047147.

Strategies for overcoming therapeutic inertia in type 2 diabetes: A systematic review and meta-analysis.

AIMS: To systematically investigate the effect of interventions to overcome therapeutic inertia on glycaemic control in individuals with type 2 diabetes. MATERIALS AND METHODS: We electronically searched for randomized controlled trials or quasi-experimental studies published between January 1, 2004 and December 31, 2019 evaluating the effect of interventions on glycated haemoglobin (HbA1c) control. Characteristics of included studies and HbA1c difference between intervention and control arms (main outcome) were extracted. Interventions were grouped as: care management and patient education; nurse or certified diabetes educator (CDE); pharmacist; or physician-based. RESULTS: Thirty-six studies including 22 243 individuals were combined in nonlinear random-effects meta-regressions; the median (range) duration of intervention was 1 year (0.9 to 36 months). Compared to the control arm, HbA1c reduction ranged from: -17.7 mmol/mol (-1.62%) to -4.4 mmol/mol (-0.40%) for nurse- or CDE-based interventions; -13.1 mmol/mol (-1.20%) to 3.3 mmol/mol (0.30%) for care management and patient education interventions; -9.8 mmol/mol (-0.90%) to -6.6 mmol/mol (-0.60%) for pharmacist-based interventions; and -4.4 mmol/mol (-0.40%) to 2.8 mmol/mol (0.26%) for physician-based interventions. Across the included studies, a reduction in HbA1c was observed only during the first year (6 months: -4.2 mmol/mol, 95% confidence interval [CI] -6.2, -2.2 [-0.38%, 95% CI -0.56, -0.20]; 1 year: -1.6 mmol/mol, 95% CI -3.3, 0.1 [-0.15%, 95% CI -0.30, 0.01]) and in individuals with preintervention HbA1c >75 mmol/mol (9%). CONCLUSIONS: The most effective approaches to mitigating therapeutic inertia and improving HbA1c were those that empower nonphysician providers such as pharmacists, nurses and diabetes educators to initiate and intensify treatment independently, supported by appropriate guidelines.

A National Research Strategy to Reduce Firearm-Related Injury and Death: Recommendations from the Health Policy Research Subcommittee of the Society of General Internal Medicine (SGIM).

Injury due to firearms is a serious health issue in the USA, leading to nearly 40,000 deaths annually and many more non-fatal injuries. Despite the significant impact on morbidity and mortality, relatively little research funding is dedicated to understanding the impact of firearm-related injury and to developing strategies to mitigate harm. In part, research has been stymied by decades-old language in federal legislation that was interpreted as prohibiting federal funding for firearm injury-related research. This paper, prepared by members of the Society of General Internal Medicine (SGIM), calls for support for research that seeks to understand the nature of firearm-related injury and resources to develop effective approaches to prevent it. We outline recommendations to develop evidence to inform policymakers and the medical and public health communities. These recommendations include (1) development of a shared national research agenda to address firearm-related injury and death; (2) allocation of federal funds specifically for research related to firearm injury; (3) support for the career development of researchers studying firearm-related injury; and (4) facilitating access to comprehensive data sources needed for developing evidence.

Simulation-based mastery learning compared to standard education for discussing diagnostic uncertainty with patients in the emergency department: a randomized controlled trial.

BACKGROUND: Diagnostic uncertainty occurs frequently in emergency medical care, with more than one-third of patients leaving the emergency department (ED) without a clear diagnosis. Despite this frequency, ED providers are not adequately trained on how to discuss diagnostic uncertainty with these patients, who often leave the ED confused and concerned. To address this training need, we developed the Uncertainty Communication Education Module (UCEM) to teach physicians how to discuss diagnostic uncertainty. The purpose of the study is to evaluate the effectiveness of the UCEM in improving physician communications. METHODS: The trial is a multicenter, two-arm randomized controlled trial designed to teach communication skills using simulation-based mastery learning (SBML). Resident emergency physicians from two training programs will be randomly assigned to immediate or delayed receipt of the two-part UCEM intervention after completing a baseline standardized patient encounter. The two UCEM components are: 1) a web-based interactive module, and 2) a smart-phone-based game. Both formats teach and reinforce communication skills for patient cases involving diagnostic uncertainty. Following baseline testing, participants in the immediate intervention arm will complete a remote deliberate practice session via a video platform and subsequently return for a second study visit to assess if they have achieved mastery. Participants in the delayed intervention arm will receive access to UCEM and remote deliberate practice after the second study visit. The primary outcome of interest is the proportion of residents in the immediate intervention arm who achieve mastery at the second study visit. DISCUSSION: Patients' understanding of the care they received has implications for care quality, safety, and patient satisfaction, especially when they are discharged without a definitive diagnosis. Developing a patient-centered diagnostic uncertainty communication strategy will improve safety of acute care discharges. Although use of SBML is a resource intensive educational approach, this trial has been deliberately designed to have a low-resource, scalable intervention that would allow for widespread dissemination and uptake. TRIAL REGISTRATION: The trial was registered at clinicaltrials.gov (NCT04021771). Registration date: July 16, 2019.

Use of Group Concept Mapping to Identify Patient Domains of Uncertainty That Contribute to Emergency Department Use.

INTRODUCTION: Prior research suggests that uncertainty related to symptoms is a driver of emergency department (ED) use, and that patients often leave the ED with uncertainty not being addressed. Our objective was to engage patients to identify domains that contribute to feelings of uncertainty and decisions to use the ED. METHODS: We used Group Concept Mapping, a quasi-qualitative/quasi-quantitative method, to elicit patients' views on how uncertainty related to experiencing symptoms contributes to decisions to access the ED. Purposive sampling was used to recruit participants who either sought treatment at the ED twice within a 30-day period, or visited both the ED and a primary care provider at least once within the past year. RESULTS: Thirty-four participants engaged in two rounds of Group Concept Mapping during which participants participated in structured brainstorming of ideas, followed by ranking and clustering of ideas into domains. The first round generated 47 idea statements reflecting uncertainty about consequences, severity, emergency room services, primary care options, finances, and psychologic concerns. The second round generated 52 idea statements reflecting uncertainty about self-management, causation, diagnosis and treatment plan, trust in the provider and institution, accessibility, and alternative care options. DISCUSSION: Factors that contribute to uncertainty and decision-making about ED use are both intrinsic (ie, cause, symptom severity) and extrinsic (ie, finances, accessibility). These domains can inform approaches to measure the uncertainty that patients experience, and to design and test interventions for nurses and other providers to help manage patient uncertainty during acute illness.

Identification of Approaches to Improve Patient Trust in Health Systems: A Group Concept Mapping Study.

EXECUTIVE SUMMARY: Higher levels of institutional trust have been associated with increased preventive healthcare use, greater adherence to treatment plans, and improved overall self-rated health status. However, little attention has been paid to understanding approaches to improve patient institutional trust. This study used group concept mapping to elicit patient perspectives on ways to improve patient trust. Eighteen insured individuals living in Delaware County, Pennsylvania, participated in the concept mapping sessions. Participants first brainstormed in a group setting to develop a list of ideas about how systems could improve trust, then each participant sorted the ideas into thematic domains and rated the statements based on both importance and feasibility. Four primary domains for improving institutional trust emerged: privacy, patient-provider relationship, respect for patients, and health system guidelines. Multiple action items to improve patient trust of the system were provided for each domain, and participants rated the "privacy" domain as the most feasible and important to address.We suggest that future local efforts to build institutional trust implement processes to improve the protection of patient privacy, support patient-provider relationships, and engender respect for patients, and that institutions develop system-level guidelines to support these principles. Next steps involve exploring the importance of these domains across other populations and developing and testing targeted interventions.

Developing Data to Support Effective Coordination of Nonprofit Hospital Community Benefit Investments.

EXECUTIVE SUMMARY: Nonprofit hospitals achieve tax exemption through community benefit investments. The objective of this study was to characterize urban and suburban nonprofit hospitals' community benefit expenditures and to estimate regional per capita community benefit spending relative to community need. Community benefit expenditures, both overall and by subtype, were compared for urban versus suburban nonprofit hospitals in a large metropolitan area, the greater Philadelphia region. Estimated zip code-level per capita expenditures were mapped in the urban core area. We found that urban hospitals report higher overall community benefit expenditures than suburban hospitals yet invest less in community health improvement services, both proportionally and absolutely, despite spending similar proportions on charity care. There is an overlap in hospital-identified community benefit service areas in the urban core, but the degree of overlap is not related to community poverty levels. There is significant variation in zip code-level per capita community benefit expenditures, which does not correlate with community need. Community benefit investments offer the potential to improve community health, yet without regional coordination, the ability to maximize the potential of these investments is limited. This study's findings highlight the need to implement policies that increase transparency, accountability, and regional coordination of community benefit spending.

A Content Analysis of Nonprofit Hospital Community Health Needs Assessments and Community Benefit Implementation Strategies in Philadelphia.

CONTEXT: Nonprofit hospitals are mandated to perform a community health needs assessment, develop an implementation strategy to address community needs, and invest in improving community health through community benefit investments in order to maintain the tax exemptions afforded nonprofit hospitals. OBJECTIVE: We sought to describe the regional health needs identified across community health needs assessments and the portfolio of implementation strategies reported to address those needs. DESIGN: The study provides a content analysis of community health needs assessments and implementation strategies for nonprofit hospitals in one urban region. SETTING: The study focused on nonprofit hospitals in Philadelphia, Pennsylvania. MAIN OUTCOME MEASURES: Community benefit documents were coded to characterize health needs and intervention activities using the 4 health factor categories of the County Health Rankings framework: clinical care, health behaviors, social and economic factors, and physical environment. RESULTS: Hospitals predominantly identified health needs related to access to care, especially mental health and dental care, and insurance coverage and costs of care. In many instances, there is little alignment between needs identified through the community health needs assessments and the reported implementation strategies. Specifically, dental care, behavioral health, substance abuse, social factors, and health care and prescription drug costs were all cited as important community needs but were infrequently targeted by implementation strategies. CONCLUSIONS: Nonprofit hospital community health needs assessments in Philadelphia predominantly identify needs related to access to care and to some extent health behaviors. There is incomplete alignment between the needs identified in hospital assessments and the needs targeted in implementation strategies, underscoring a need for regional coordination in community benefit investments. Improved regional coordination between hospitals serving the region may offer the opportunity to eliminate duplicative efforts and increase the amount of funds available to address unmet needs.

Patient Perceptions of Telehealth Primary Care Video Visits.

PURPOSE: Telehealth is a care delivery model that promises to increase the flexibility and reach of health services. Our objective is to describe patient experiences with video visits performed with their established primary care clinicians. METHODS: We constructed semistructured, in-depth qualitative interviews with adult patients following video visits with their primary care clinicians at a single academic medical center. Data were analyzed with a content analysis approach. RESULTS: Of 32 eligible patients, 19 were successfully interviewed. All patients reported overall satisfaction with video visits, with the majority interested in continuing to use video visits as an alternative to in-person visits. The primary benefits cited were convenience and decreased costs. Some patients felt more comfortable with video visits than office visits and expressed a preference for receiving future serious news via video visit, because they could be in their own supportive environment. Primary concerns with video visits were privacy, including the potential for work colleagues to overhear conversations, and questions about the ability of the clinician to perform an adequate physical examination. CONCLUSIONS: Primary care video visits are acceptable in a variety of situations. Patients identified convenience, efficiency, communication, privacy, and comfort as domains that are potentially important to consider when assessing video visits vs in-person encounters. Future studies should explore which patients and conditions are best suited for video visits.

A qualitative analysis of interprofessional healthcare team members' perceptions of patient barriers to healthcare engagement.

BACKGROUND: Healthcare systems increasingly engage interprofessional healthcare team members such as case managers, social workers, and community health workers to work directly with patients and improve population health. This study elicited perspectives of interprofessional healthcare team members regarding patient barriers to health and suggestions to address these barriers. METHODS: This is a qualitative study employing focus groups and semi-structured interviews with 39 interprofessional healthcare team members in Philadelphia to elicit perceptions of patients' needs and experiences with the health system, and suggestions for positioning health care systems to better serve patients. Themes were identified using a content analysis approach. RESULTS: Three focus groups and 21 interviews were conducted with 26 hospital-based and 13 ambulatory-based participants. Three domains emerged to characterize barriers to care: social determinants, health system factors, and patient trust in the health system. Social determinants included insurance and financial shortcomings, mental health and substance abuse issues, housing and transportation-related limitations, and unpredictability associated with living in poverty. Suggestions for addressing these barriers included increased financial assistance from the health system, and building a workforce to address these determinants directly. Health care system factors included poor care coordination, inadequate communication of hospital discharge instructions, and difficulty navigating complex systems. Suggestions for addressing these barriers included enhanced communication between care sites, patient-centered scheduling, and improved patient education especially in discharge planning. Finally, factors related to patient trust of the health system emerged. Participants reported that patients are often intimidated by the health system, mistrusting of physicians, and fearful of receiving a serious diagnosis or prognosis. A suggestion for mitigating these issues was increased visibility of the health system within communities to foster trust and help providers gain a better understanding of unique community needs. CONCLUSION: This work explored interprofessional healthcare team members' perceptions of patient barriers to healthcare engagement. Participants identified barriers related to social determinants of health, complex system organization, and patient mistrust of the health system. Participants offered concrete suggestions to address these barriers, with suggestions supporting current healthcare reform efforts that aim at addressing social determinants and improving health system coordination and adding new insight into how systems might work to improve patient and community trust.

Comparison of Emergency Department Wait Times in Adults with Sickle Cell Disease Versus Other Painful Etiologies.

Sickle cell disease is characterized by intermittent painful crises often requiring treatment in the emergency department (ED). Past examinations of time-to-provider (TTP) in the ED for patients with sickle cell disease demonstrated that these patients may have longer TTP than other patients. Here, we examine TTP for patients presenting for emergency care at a single institution, comparing patients with sickle cell disease to both the general population and to those with other painful conditions, with examination of both institutional and patient factors that might affect wait times. Our data demonstrated that at our institution patients with sickle cell disease have a slightly longer average TTP compared to the general ED population (+16 min.) and to patients with other painful conditions (+4 min.) However, when confounding factors were considered, there was no longer a significant difference between TTP of patients with sickle cell disease and the general population nor between patients with sickle cell disease and those with other painful conditions. Multivariate analyses demonstrated that gender, race, age, high utilizer status, fast track use, time of presentation, acuity and insurance type, were all independently associated with TTP, with acuity, time of presentation and use of fast track having the greatest influence. We concluded that the longer TTP observed in patients with sickle cell disease can at least partially be explained by institutional factors such as the use of fast track protocols. Further work to reduce TTP for sickle cell disease and other patients is needed to optimize care.

Genome-wide study of percent emphysema on computed tomography in the general population. The Multi-Ethnic Study of Atherosclerosis Lung/SNP Health Association Resource Study.

RATIONALE: Pulmonary emphysema overlaps partially with spirometrically defined chronic obstructive pulmonary disease and is heritable, with moderately high familial clustering. OBJECTIVES: To complete a genome-wide association study (GWAS) for the percentage of emphysema-like lung on computed tomography in the Multi-Ethnic Study of Atherosclerosis (MESA) Lung/SNP Health Association Resource (SHARe) Study, a large, population-based cohort in the United States. METHODS: We determined percent emphysema and upper-lower lobe ratio in emphysema defined by lung regions less than -950 HU on cardiac scans. Genetic analyses were reported combined across four race/ethnic groups: non-Hispanic white (n = 2,587), African American (n = 2,510), Hispanic (n = 2,113), and Chinese (n = 704) and stratified by race and ethnicity. MEASUREMENTS AND MAIN RESULTS: Among 7,914 participants, we identified regions at genome-wide significance for percent emphysema in or near SNRPF (rs7957346; P = 2.2 × 10(-8)) and PPT2 (rs10947233; P = 3.2 × 10(-8)), both of which replicated in an additional 6,023 individuals of European ancestry. Both single-nucleotide polymorphisms were previously implicated as genes influencing lung function, and analyses including lung function revealed independent associations for percent emphysema. Among Hispanics, we identified a genetic locus for upper-lower lobe ratio near the α-mannosidase-related gene MAN2B1 (rs10411619; P = 1.1 × 10(-9); minor allele frequency [MAF], 4.4%). Among Chinese, we identified single-nucleotide polymorphisms associated with upper-lower lobe ratio near DHX15 (rs7698250; P = 1.8 × 10(-10); MAF, 2.7%) and MGAT5B (rs7221059; P = 2.7 × 10(-8); MAF, 2.6%), which acts on α-linked mannose. Among African Americans, a locus near a third α-mannosidase-related gene, MAN1C1 (rs12130495; P = 9.9 × 10(-6); MAF, 13.3%) was associated with percent emphysema. CONCLUSIONS: Our results suggest that some genes previously identified as influencing lung function are independently associated with emphysema rather than lung function, and that genes related to α-mannosidase may influence risk of emphysema.

Genetic ancestry and the relationship of cigarette smoking to lung function and per cent emphysema in four race/ethnic groups: a cross-sectional study.

BACKGROUND: Cigarette smoking is the major cause of chronic obstructive pulmonary disease and emphysema. Recent studies suggest that susceptibility to cigarette smoke may vary by race/ethnicity; however, they were generally small and relied on self-reported race/ethnicity. OBJECTIVE: To test the hypothesis that relationships of smoking to lung function and per cent emphysema differ by genetic ancestry and self-reported race/ethnicity among Caucasians, African-Americans, Hispanics and Chinese-Americans. DESIGN: Cross-sectional population-based study of adults age 45-84 years in the USA. MEASUREMENTS: Principal components of genetic ancestry and continental ancestry estimated from one million genome-wide single nucleotide polymorphisms; pack-years of smoking; spirometry measured for 3344 participants; and per cent emphysema on computed tomography for 8224 participants. RESULTS: The prevalence of ever-smoking was: Caucasians, 57.6%; African-Americans, 56.4%; Hispanics, 46.7%; and Chinese-Americans, 26.8%. Every 10 pack-years was associated with -0.73% (95% CI -0.90% to -0.56%) decrement in the forced expiratory volume in 1 s to forced vital capacity (FEV1 to FVC) and a 0.23% (95% CI 0.08% to 0.38%) increase in per cent emphysema. There was no evidence that relationships of pack-years to the FEV1 to FVC, airflow obstruction and per cent emphysema varied by genetic ancestry (all p>0.10), self-reported race/ethnicity (all p>0.10) or, among African-Americans, African ancestry. There were small differences in relationships of pack-years to the FEV1 among male Chinese-Americans and to the FEV1 to FVC ratio with African and Native American ancestry among male Hispanics only. CONCLUSIONS: In this large cohort, there was little to no evidence that the associations of smoking to lung function and per cent emphysema differed by genetic ancestry or self-reported race/ethnicity.

Optimizing clinical guidelines to address antimicrobial-resistant infections: A conceptual framework reflecting stakeholder perspectives.

Objectives: Clinical guidelines or guidance is an important tool for preventing and treating antimicrobial-resistant (AMR) infections. We sought to understand and support the effective use of guidelines and guidance for AMR infections. Methods: Key informant interviews and a stakeholder meeting on the development and use of guidelines and guidance for management of AMR infections; the interview findings and meeting discussion informed a conceptual framework for AMR infection clinical guidelines. Participants: Interview participants included experts with experience in guidelines development and physician and pharmacist hospital leaders and antibiotic stewardship program leaders. Stakeholder meeting participants included federal and nonfederal participants involved in research, policy, and practice related to prevention and management of AMR infections. Results: Participants described challenges related to timeliness of guidelines, methodologic limitations of the development process, and issues with usability across a range of clinical settings. These findings, and participants' suggestions for mitigating the challenges identified, informed a conceptual framework for AMR infection clinical guidelines. The framework components include (1) science and evidence, (2) guideline and guidance development and dissemination, and (3) implementation and real-world practice. These components are supported by engaged stakeholders whose leadership and resources help to improve patient and population AMR infection prevention and management. Conclusions: Use of guidelines and guidance documents for management of AMR infections can be supported through (1) a robust body of scientific evidence to inform guidelines and guidance; (2) approaches and tools to support timely, transparent guidelines that are relevant and actionable for all clinical audiences; and (3) tools to implement guidelines and guidance effectively.