Faculty Bibliography

Recent scholarship suggests that the genomes of those around us affect our own phenotypes. Much of the empirical evidence for such "metagenomic" effects comes from animal studies, where the socio-genetic environment can be easily manipulated. Among humans, it is more difficult to identify such effects given the nonrandom distribution of genes and environments. Here we leverage the as-if-random distribution of grade-mates' genomes conditional on school-level variation in a nationally representative sample. Specifically, we evaluate whether one's peers' genetic propensity to smoke affects one's own smoking behavior net of one's own genotype. Results show that peer genetic propensity to smoke has a substantial effect on an individual's smoking outcome. This is true not only when the peer group includes direct friends, and therefore where the individual plays an active role in shaping the metagenomic context but also when the peer group includes all grade-mates and thus in cases where the individual does not select the metagenomic environment. We explore these effects further and show that a small minority with high genetic risk to smoke ('bad apples') can greatly affect the smoking behavior of an entire grade. The methodology used in this paper offers a potential solution to many of the challenges inherent in estimating peer effects in nonexperimental settings and can be utilized to study a wide range of outcomes with a genetic basis. On a policy level, our results suggest that efforts to reduce adolescent smoking should take into account metagenomic effects, especially bad apples, within social networks.

BACKGROUND:Mineralocorticoid receptor antagonists (MRA) are an underutilized therapy for heart failure with a reduced ejection fraction (HFrEF), but the current impact of hospitalization on MRA use is not well characterized. The objective of this study was to describe contemporary MRA prescription for heart failure patients before and after the full scope of hospitalizations and the association between MRA discharge prescription and post-hospitalization outcomes. METHODS:We conducted a retrospective cohort study at an academic hospital system in 2013-2016. Among 1500 included hospitalizations of 1009 unique patients with HFrEF and without MRA contraindication, the mean age was 71.9 ± 13.6 years and 443 (29.5%) were female. We compared MRA prescription before and after hospitalizations with McNemar's test and between patients with principal and secondary diagnoses of HFrEF with the chi-square test, and association of MRA discharge prescription with 30-day and 180-day mortality and readmissions using generalized estimating equations. RESULTS:MRA prescriptions increased from 303 (20.2%) to 375 (25.0%) at discharge (+4.8%, p < 0.0001). More patients with principal diagnosis of HFrEF compared to those hospitalized for other reasons received MRA (34.9% versus 21.3%, p < 0.0001) and had them initiated (21.8% versus 9.7%, p < 0.0001). MRA prescription at discharge was not associated with mortality or readmission at 30 and 180 days, and there was no interaction with principal/secondary diagnosis. CONCLUSIONS:Among hospitalized HFrEF patients, 75% did not receive MRA before or after hospitalization, and nearly 90% of eligible patients did not have MRA initiated. As we found no signal for short-term harm after discharge, hospitalization may represent an opportunity to initiate guideline-directed heart failure therapy.

BACKGROUND:Hepatitis C virus (HCV) is a major public health problem in correctional settings. HCV treatment is often not possible in U.S. jails due to short lengths of stay. Linkage to care is crucial in these settings, but competing priorities complicate community healthcare engagement and retention after incarceration. METHODS:We conducted a single arm clinical trial of a combined transitional care coordination (TCC) and patient navigation intervention and assessed the linkage rate and factors associated with linkage to HCV care after incarceration. RESULTS:During the intervention, 84 participants returned to the community after their index incarceration. Most participants were male and Hispanic, with a history of mental illness and a mean age of 45 years. Of those who returned to the community, 26 (31%) linked to HCV care within a median of 20.5 days; 17 (20%) initiated HCV treatment, 15 (18%) completed treatment, 9 (11%) had a follow-up lab drawn to confirm sustained virologic response (SVR), and 7 (8%) had a documented SVR. Among those with follow-up labs the known SVR rate was (7/9) 78%. Expressing a preference to be linked to the participant's existing health system, being on methadone prior to incarceration, and feeling that family or a loved one were concerned about the participant's wellbeing were associated with linkage to HCV care. Reporting drinking alcohol to intoxication prior to incarceration was negatively associated with linkage to HCV care. CONCLUSION/CONCLUSIONS:We demonstrate that an integrated strategy with combined TCC and patient navigation may be effective in achieving timely linkage to HCV care. Additional multicomponent interventions aimed at treatment of substance use disorders and increasing social support could lead to further improvement. TRIAL REGISTRATION/BACKGROUND:Clinicaltrials.gov NCT04036760 July 30th, 2019 (retrospectively registered).

BACKGROUND:Increasingly, patients with limited English proficiency are accessing home health care services in the United States. Few studies have examined how language barriers influence provider role implementation or workload in the home health care setting. OBJECTIVES/OBJECTIVE:To explore home health care professionals' perspectives about how workload changes from managing language barriers influence quality and safety in home health care. DESIGN/METHODS:A qualitative secondary data analysis using a summative content analysis approach was used to analyze existing semi-structured interview data. SETTING/METHODS:A large urban home health care agency located on the East Coast of the United States. PARTICIPANTS/METHODS:Thirty five home health care providers [31 registered nurses, 3 physical therapists, 1 occupational therapist]. RESULTS:A total of 142 discrete incidents emerged from the analysis. Overall, home health care providers experienced distinct shifts in how they implemented their roles that added to their workload and time spent with Limited English Proficiency patients and family members. Providers were concerned about interpretation accuracy and perceived it as potentially posing risks to patient safety. Changes in work patterns, therefore, sought to maximize patient safety. CONCLUSIONS:Home health care providers decision-making about how they adapt practice when faced with a language barrier is a sequence of actions based on awareness of the patient's language preference and if they spoke another language. Subsequent choices showed proactive behaviors to manage increased workload shaped by their perceived risk of the threats posed by the quality of interpreter services. Future research should develop quantitative models examining differences in workload when caring for limited English proficiency versus English speaking patients as well as the relationship between visit length and patient outcomes to determine optimal quality models.

AIMS/OBJECTIVE:To conduct a needs assessment of public hospitals in Mexico to determine workforce specific capacity building needs in the care of older people. BACKGROUND:The older population in Mexico is growing rapidly. The healthcare system and workforce may not be prepared to handle the needs of older people, especially those with chronic illnesses who are also disadvantaged socioeconomically. Determining workforce and system needs is important to strategically develop capacity. METHODS:A needs assessment using a pragmatic qualitative approach structured this study. Semi-structured interviews and focus groups were conducted with healthcare professionals at five public hospitals in Mexico. Directed content analysis techniques analysed the data. RESULTS:Ninety-two healthcare professionals participated in the study. Three themes emerged, including geriatric service delivery, social changes and human resources for health. Participants reported a lack of gerontology knowledge and related clinical skills deficits to provide care for hospitalised elders and expressed emotional distress related to the lack of resources in their institutions. All healthcare professionals expressed strong concern at the social toll the ageing population had on families. The support of government organisations emerged as a facilitator for adoption of geriatric care principles. CONCLUSIONS:This qualitative study uncovered important data to inform the implementation of quality improvement and capacity building models for older people care in Mexico. There appears to be strong potential for a culturally appropriate translation of high-income country older people care models within the Mexican healthcare context. IMPLICATIONS FOR PRACTICE/CONCLUSIONS:Findings suggests there is a need to increase geriatric capacity building among helathcare professionals in Mexico. This will be an important step in improving care for hospitalised older people.

BACKGROUND AND PURPOSE/OBJECTIVE:There is no reliable and valid version of the Practice Environment Scale of the Nursing Work Index-Revised (PES-NWI-R) in Arabic. The purpose of this study was to describe the systematic instrument translation and validation of the PES-NWI-R. METHODS:Using the Content Validity Indexing-based approach, 32 expert nurses from four countries in the Eastern Mediterranean Region (Jordan, Oman, Saudi Arabia, and United Arab Emirates) participated in the validation of this translation. RESULTS:The content validity index score of the overall scale was excellent (0.87 for the relevancy, and 0.95 for the quality of Arabic translation). CONCLUSION/CONCLUSIONS:Our study supported the content validity of the Arabic version of the instrument which provided the first valid Arabic translation of the instrument.

CONTEXT/BACKGROUND:Metyrapone and ketoconazole, frequently used steroidogenesis inhibitors for treatment of Cushing syndrome, can be associated with side effects and limited efficacy. Osilodrostat is a CYP11B1 and CYP11B2 inhibitor, with unknown effects on other steroidogenic enzymes. OBJECTIVE:To compare the effects of osilodrostat, metyrapone, and ketoconazole on adrenal steroidogenesis, and pituitary adenoma cells in vitro. METHODS:HAC15 cells, 17 primary human adrenocortical cell cultures, and pituitary adenoma cells were incubated with osilodrostat, metyrapone, or ketoconazole (0.01 to 10 µM). Cortisol and ACTH were measured using chemiluminescence immunoassays, and steroid profiles by liquid chromatography-mass spectrometry. RESULTS:In HAC15 cells, osilodrostat inhibited cortisol production more potently (IC50: 0.035 µM) than metyrapone (0.068 µM; P < 0.0001), and ketoconazole (0.621 µM; P < 0.0001). IC50 values of osilodrostat and metyrapone for basal cortisol production varied with a 25- and 18-fold difference, respectively, with comparable potency. Aldosterone production was inhibited more potently by osilodrostat vs metyrapone and ketoconazole. Osilodrostat and metyrapone treatment resulted in strong inhibition of corticosterone and cortisol, 11-deoxycortisol accumulation, and modest effects on adrenal androgens. No pituitary-directed effects of osilodrostat were observed. CONCLUSIONS:Under our study conditions, osilodrostat is a potent cortisol production inhibitor in human adrenocortical cells, comparable with metyrapone. All steroidogenesis inhibitors showed large variability in sensitivity between primary adrenocortical cultures. Osilodrostat might inhibit CYP11B1 and CYP11B2, in some conditions to a lesser extent CYP17A1 activity, and a proximal step in the steroidogenesis. Osilodrostat is a promising treatment option for Cushing syndrome, and in vivo differences with metyrapone are potentially driven by pharmacokinetic differences.

Background: The transition from medical student to intern presents a major patient safety concern. Our institution implemented an immersive First Night OnCall (FNOC) simulation to support transitioning trainees and cultivate a culture of safety.
Objective(s): Engage pediatric interns in a pediatric focused FNOC simulation to ensure readiness to recognize and address common safety issues in practice.
Method(s): Interns were asked to recognize patient safety hazards in a simulated patient room and participate in case based safety discussions. Interns then participated in GOSCEs (Group Observed Standardized Clinical Encounters). GOSCEs tasked trainees to obtain informed consent, evaluate a decompensating patient, recognize a mislabeled culture bottle, and give an effective patient handoff. Faculty debriefed all activities. Learners completed pre and post program assessments and a program evaluation.
Result(s): Twenty incoming interns completed FNOC. Only 11% reported any prior formal training in patient safety. Interns recognized 46% of the environmental patient safety hazards. Out of the 5 GOSCE groups, 3 called a rapid response team, 3 noted the label error for the culture bottle, and 3 obtained complete informed consent. After FNOC, 92% of interns reported increased comfort (4 or 5 on 1-5 scale) in speaking to a supervisor, escalating a situation, and reporting a medical error. All interns agreed that the case based safety discussions and the patient safety room increased readiness for internship. Almost all of the interns (85%) agreed or strongly agreed that FNOC was an effective way to learn patient safety, a good approach to improve readiness, fun, and engaging.
Conclusion(s): Incoming interns are not consistently able to demonstrate common safety practices. Engaging, immersive, simulation based experiences like FNOC may reduce this variability, while simultaneously instilling aspirational institutional norms, promoting a culture of safety, and providing a framework for effective on-boarding strategies for new trainees.
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PURPOSE/UNASSIGNED:Housing status can become compromised in the wake of financial hardship for some patients with cancer and become a source of disparity. This qualitative study describes the types of housing issues experienced by patients with cancer and survivors of cancer in New York City. METHODS/UNASSIGNED:Semistructured interviews were conducted with a volunteer sample of 21 patients with cancer or survivors of cancer treated in New York City who reported housing needs in the period after diagnosis through survivorship. Nine supplemental interviews were conducted with cancer and housing key informants. Conventional content analysis was conducted on transcripts to create a codebook describing types of housing needs. RESULTS/UNASSIGNED:Patients and survivors most commonly had breast (n = 9) and blood (n = 4) cancers and ranged from recently diagnosed to many years posttreatment. Twenty-nine distinct housing-related issues were identified, which were grouped into the following six major categories: housing costs (eg, rent, mortgage), home loss, doubled up or unstable housing, housing conditions, accessibility (eg, stairs, proximity to amenities), and safety. Issues were often interrelated. Housing needs sometimes predated cancer diagnosis. Other issues newly emerged in the wake of cancer-related physical limitations and disruption to finances. Needs ranged in severity and caused patients and survivors considerable burden during a difficult period of poor health and financial strain. CONCLUSION/UNASSIGNED:This study contributes depth to current understandings of housing needs among patients with cancer and survivors by providing detailed disaggregated descriptions. We recommend increasing availability of services responsive to these needs and exploring promising options such as patient navigation and legal services. Findings also highlight the importance of creative solutions addressing ecologic-level factors such as housing affordability.