Faculty Bibliography

Background: Warfarin is efficacious in reducing thromboembolic risks but its use presents challenges to both patients and physicians including the need for monitoring, diet modification, and attention to drug-related interactions. Novel anticoagulants have circumvented many of these issues. Although prior research includes physician consideration of patients' perspective as important in the choice of anticoagulants, patient perceptions about anticoagulant use is unknown.
Method(s): We sought to identify patient perceptions about anticoagulant use in the Geriatrics Warfarin Clinic in Bellevue Hospital, a well-known, large safety net institution in New York City. We formulated a semi-structured telephone interview guide based on prior literature. Two geriatrics fellows (JK, NT) conducted interviews with role switches between interviewer and scribe every 3 interviews. We reviewed interview notes and identified codes. Both fellows independently analyzed all interviews and codes and categorized codes into themes. Any discrepancies were resolved by consensus discussion.
Result(s): Interviews were 10-15 minutes each. Respondents' mean age was 80.4 years (Standard deviation: 8.1); 7 were women (39%). Eight interviews were in English, five (28%) required a language interpreter and five were by proxy at patient request. Thematic saturation was reached at 18 patient interviews revealing six themes. These were: resignation about current warfarin use (n=12); lack of knowledge of alternative anticoagulation (n=16); perceived need for monitoring and efficacy checks (n=6); concerns about side effect profile (n=7); primary physician's recommendation (n=7) and dietary restrictions (n=4). Preference for warfarin use was driven by ability to know its therapeutic level and many patients expressed hesitance in switching with no monitoring procedure.
Conclusion(s): Patients' use of warfarin was generally well accepted. The primary concern was need for dietary modification. Of those patients that appeared neutral or accepting of alternative anticoagulation, the main discussion points were the drug's efficacy, side effect profile, and their physician's recommendation. This study provides useful information on guiding shared decision-making conversations about anticoagulation choice, especially in a patient demographic of predominantly low socioeconomic status individuals

Background: Deconditioning from prolonged bedrest during hospitalization predisposes older patients to loss of mobility and the need for additional rehabilitation post-discharge. Despite recognition of the harms of prolonged bedrest and evidence that resistance training (RT) reverses deconditioning, few interventions have provided such exercise for hospitalized older adults. We evaluated the safety and feasibility of a novel exercise device used in a high-intensity RT routine in older age inpatients.
Method(s): In collaboration with the NYU Grossman School of Medicine Center for Healthcare Innovation and Delivery Science we developed a lightweight, portable RT device, which attaches to a hospital bed footboard and allows for over 20 exercises in 4 categories: upper-body, lower-body, back and core. We recruited and trained willing patients to use this device with a goal of completing 7 exercises per workout. We included inpatients (age > 70) on a general medical unit with a PT/OT order. Those having exercise limiting orthopedic or neurologic disability, and acute cardiopulmonary limitations were excluded. Each workout included exercises from each category, 10-20 isometric 3-second holds per exercise, and minimal rest. Patients were: (1) evaluated on their ability to complete each workout; (2) surveyed on their experience with the device; and (3) monitored for adverse events.
Result(s): 11 patients were trained using the device for an average of 2.0 total sessions per hospitalization (mean age: 80.9 years, range: 71-101; 54.5% female). Reasons for fewer sessions included early discharge, delirium, and contact precautions. Patients completed 89.3% of the exercises they performed. We noted no adverse events. 72.7% stated they would use the device on their own and 90.9% believed there is not enough exercise performed in hospitals.
Conclusion(s): This pilot study provides evidence of the safety and feasibility of a novel RT device to prevent inpatient deconditioning. Patients were eager and able to participate in RT. We did not observe fear of safety or views of high intensity RT as inappropriate for older hospitalized patients. Whether use of RT will change discharge-related outcomes requires further study

Background: Emergency department (ED) visits among older adults are common near the end of life, especially among those with advanced illness. Palliative care has been shown to reduce ED visits and to increase quality of life among these patients, but recruitment into these programs is often challenging.
Objective(s): To understand the barriers to eligibility and recruitment into a multi-site randomized controlled trial investigating two modes of community-based palliative care delivery for patients in the ED who are discharged home.
Method(s): Research coordinators (RC) monitored factors that prevented eligibility and enrollment into Emergency Medicine Palliative Care Access, a multi-site trial comparing the effectiveness of nurse-led telephonic case management to facilitated specialty, outpatient palliative care. RCs screened electronic health records to identify and recruit eligible patients and their caregivers. Reasons for ineligibility were documented for patients who met the disease qualifier, as well as reasons for non-participation among eligible patients.
Result(s): Among the 7,091 patients who met the age and disease qualifier, 4,292 (60.5%) were deemed ineligible due to hospital admission. Other common reasons for ineligibility included previous palliative care (919 [13%]) or residence in a nursing facility (462 [6.5%]). Of the 695 patients who were eligible, 298 were enrolled, yielding an enrollment rate of 43% (range of 9% to 80% across all sites). Of the 397 eligible patients who did not participate, 180 (45.3%) refused due to barriers related to illness severity. Patients also commonly refused due to misconceptions/stigma related to palliative care (118 [29.7%]). One-hundred fifteen patients (29%) refused due to the mode of palliative care delivery.
Conclusion(s): Hospital admission from the ED is common among this population, which proved to be our most significant barrier to eligibility. Enrollment rates varied widely by site, likely due to site-specific barriers. Eligible patients often refused participation due to the nature of their illness, misconceptions about palliative care, and concerns about being able to attend clinic visits if assigned to the outpatient arm

BACKGROUND:Evidence shows community health workers (CHWs) can effectively deliver proven behavior-change strategies to prevent type 2 diabetes mellitus (diabetes) and enhance preventive care efforts in primary care for minority and low-income populations. However, operational details to integrate CHWs into primary care practice remain less well known. OBJECTIVE:To examine clinicians' perceptions about working with CHWs for diabetes prevention in safety-net primary care. SETTING/METHODS:Clinicians are primary care physicians and nurses at two New York City safety-net hospitals participating in CHORD (Community Health Outreach to Reduce Diabetes). CHORD is a cluster-randomized trial testing a CHW intervention to prevent diabetes. DESIGN/METHODS:Guided by the Consolidated Framework for Implementation Research, we studied how features of the CHW model and organizational context of the primary care practices influenced clinicians' perspectives about the acceptability, appropriateness, and feasibility of a diabetes-prevention CHW program. Data were collected pre-intervention using semi-structured interviews (n = 18) and a 20-item survey (n = 54). APPROACH/METHODS:Both survey and interview questions covered clinicians' perspectives on diabetes prevention, attitudes and beliefs about CHWs' role, expectations in working with CHWs, and use of clinic- and community-based diabetes- prevention resources. Survey responses were descriptively analyzed. Interviews were coded using a mix of deductive and inductive approaches for thematic analysis. KEY RESULTS/RESULTS:Eighty-seven percent of survey respondents agreed CHWs could help in preventing diabetes; 83% reported interest in working with CHWs. Ninety-one percent were aware of clinic-based prevention resources; only 11% were aware of community resources. Clinicians supported CHWs' cultural competency and neighborhood reach, but expressed concerns about the adequacy of CHWs' training; public and professional emphasis on diabetes treatment over prevention; and added workload and communication with CHWs. CONCLUSIONS:Clinicians found CHWs appropriate for diabetes prevention in safety-net settings. However, disseminating high-quality evidence about CHWs' effectiveness and operations is needed to overcome concerns about integrating CHWs in primary care.

Although it is well accepted that air pollution exposure exacerbates preexisting airway disease, it has not been firmly established that long-term pollution exposure increases the risk of new-onset asthma or chronic obstruction pulmonary disease (COPD). This Workshop brought together experts on mechanistic, epidemiological, and clinical aspects of airway disease to review current knowledge regarding whether air pollution is a causal factor in the development of asthma and/or COPD. Speakers presented recent evidence in their respective areas of expertise related to air pollution and new airway disease incidence, followed by interactive discussions. A writing committee summarized their collective findings. The Epidemiology Group found that long-term exposure to air pollution, especially metrics of traffic-related air pollution such as nitrogen dioxide and black carbon, is associated with onset of childhood asthma. However, the evidence for a causal role in adult-onset asthma or COPD remains insufficient. The Mechanistic Group concluded that air pollution exposure can cause airway remodeling, which can lead to asthma or COPD, as well as asthma-like phenotypes that worsen with long-term exposure to air pollution, especially fine particulate matter and ozone. The Clinical Group concluded that air pollution is a plausible contributor to the onset of both asthma and COPD. Available evidence indicates that long-term exposure to air pollution is a cause of childhood asthma, but the evidence for a similar determination for adult asthma or COPD remains insufficient. Further research is needed to elucidate the exact biological mechanism underlying incident childhood asthma, and the specific air pollutant that causes it.

Health and housing consortia in New York City offer a model for bridging the divide between the health care and housing sectors. While staff in these sectors often recognize the need to better integrate their services, there are few models for doing so. In this article we describe the formation of a health and housing consortium in the Bronx, New York City, as well as the successful replication of its model in Brooklyn. While each consortium has some features specific to its service area, the primary goal of both is the same: to provide a neutral space for health care and housing organizations to collaborate in what is otherwise often competitive and fragmented territory. In addition, the work of both consortia coalesces around training and resource development, cross-sector communication, and research and advocacy. We provide examples of the Bronx Consortium's activities in each of these core areas, highlight tangible results to date, and offer recommendations for people interested in undertaking similar efforts.

BACKGROUND:The 6-min walk test (6MWT) is a commonly used clinical assessment of exercise capacity in patients with cardiopulmonary or neuromuscular disease, but normal values are lacking for young adults, who are frequent subjects of testing. METHODS:In a two-center study, 272 young adults, ages 18-50, underwent American Thoracic Society protocolized 6-min walk testing, and 56 underwent repeat testing. A linear regression model was developed based on anthropomorphic data. This model was compared to existing prediction equations. RESULTS:Median 6MWD for the cohort was 637 m (IQR 584-686 m) and was not significantly impacted by age. This is in contrast to existing equations extrapolated from older subjects that predict increasing 6MWD in younger subjects. We found weak correlation of 6MWD with height, weight, BMI, and resting heart rate. Heart rate at completion correlated most strongly with 6MWD (rho 0.53 p < 0.0001). Repeat 6MWD was surprisingly variable, with a median difference between tests of 32.5 ± 31.9 m. Established reference equations performed poorly in this population, largely because age has much less effect on 6MWD in this group than in older adults. CONCLUSIONS:Established reference equations should be reconfigured to include data from young adults, as age has minimal effect on 6MWD in this population. Heart rate response may be a valuable measure of effort in normal subjects. Six-minute walk distance, as with pulmonary function and exercise testing, should have predictive equations across the spectrum of age to allow for accurate assessment of exercise limitation.

BACKGROUND:Elderly patients with Traumatic Brain Injury (TBI) are frequently transferred to designated Trauma Centers (TC). We hypothesized that TC transfer is associated with improved outcomes. METHODS:Retrospective study utilizing the National Trauma Databank. Demographics, injury and outcomes data were abstracted. Patients were dichotomized by transfer to a designated level I/II TC vs. not. Multivariate regression was used to derive the adjusted primary outcome, mortality, and secondary outcomes, complications and discharge disposition. RESULTS:19,664 patients were included, with a mean age of 78.1 years. 70% were transferred to a level I/II TC. Transferred patients had a higher ISS (12 vs. 10, p < 0.001). Mortality was significantly lower in patients transferred to level I/II TCs (5.6% vs. 6.2%, Adjusted Odds Ratio (AOR) 0.84, p = 0.011), as was the likelihood of discharge to skilled nursing facilities (26.4% vs. 30.2%, AOR 0.80, p < 0.001). CONCLUSIONS:Elderly patients with mild TBI transferred to level I/II TCs have improved outcomes. Which patients with mild TBI require level I/II TC care should be examined prospectively.

BACKGROUND:We sought to evaluate the role of trauma center designation in the association of race and insurance status with disposition to rehabilitation centers among elderly patients with Traumatic Brain Injury (TBI). METHODS:The National Trauma Data Bank (2014-2015) was used to identify elderly (age ≥ 65) patients with isolated moderate to severe blunt TBI who survived to discharge. Race, insurance status, and outcomes were stratified by trauma center designation and compared. RESULTS:3,292 patients met the inclusion criteria. Black patients were 1.5 times less likely (AOR 0.64, p = 0.01) and Latino patients were 1.7 times less likely (AOR 0.58, p = 0 0.007) to be discharged to rehabilitation centers as compared with White patients. Asian patients at Level I hospitals were more likely to be discharged to rehabilitation centers if they had private vs. non-private insurance (42.9% versus 12.7%, p = 0.01). CONCLUSION/CONCLUSIONS:Black and Latino patients were less likely to be discharged to rehabilitation centers compared to White patients. The etiology of these disparities deserves further study.

OBJECTIVE:Conceptualisations of 'food deserts' (areas lacking healthful food/drink) and 'food swamps' (areas overwhelm by less-healthful fare) may be both inaccurate and incomplete. Our objective was to more accurately and completely characterise food/drink availability in urban areas. DESIGN/METHODS:Cross-sectional assessment of select healthful and less-healthful food/drink offerings from storefront businesses (stores, restaurants) and non-storefront businesses (street vendors). SETTING/METHODS:Two areas of New York City: the Bronx (higher-poverty, mostly minority) and the Upper East Side (UES; wealthier, predominantly white). PARTICIPANTS/METHODS:All businesses on 63 street segments in the Bronx (n 662) and on 46 street segments in the UES (n 330). RESULTS:Greater percentages of businesses offered any, any healthful, and only less-healthful food/drink in the Bronx (42·0 %, 37·5 %, 4·4 %, respectively) than in the UES (30 %, 27·9 %, 2·1 %, respectively). Differences were driven mostly by businesses (e.g. newsstands, gyms, laundromats) not primarily focused on selling food/drink - 'other storefront businesses' (OSBs). OSBs accounted for 36·0 % of all food/drink-offering businesses in the Bronx (more numerous than restaurants or so-called 'food stores') and 18·2 % in the UES (more numerous than 'food stores'). Differences also related to street vendors in both the Bronx and the UES. If street vendors and OSBs were not captured, the missed percentages of street segments offering food/drink would be 14·5 % in the Bronx and 21·9 % in the UES. CONCLUSIONS:Of businesses offering food/drink in communities, OSBs and street vendors can represent substantial percentages. Focusing on only 'food stores' and restaurants may miss or mischaracterise 'food deserts', 'food swamps', and food/drink-source disparities between communities.