Faculty Bibliography

BACKGROUND:This study examined the association between incident pulmonary tuberculosis (TB) and social and behavioral characteristics in Almaty Oblast, Kazakhstan from 2012 to 2013. METHODS:We used a matched case-control design to estimate the role of factors for acquiring pulmonary TB. Totally 324 individuals were recruited from Sep 2012 to Mar 2013. Participants included 110 TB index cases with newly detected pulmonary TB. Each case was matched with one household and one community control. A total of 107 household and 107 community controls were included to the study. Adjusted odds ratios measuring associations between TB and risk factors were calculated by using a conditional multiple logistic regression analysis. RESULTS:TB cases were more likely to be younger, recent smokers and have diabetes, when compared to household controls. Between TB cases and community controls, TB was significantly associated with age, non-married family status, living in a rented home, recent smoker, and having diabetes. Comparing TB cases with community controls, we found that foreign birth was marginally associated with incident TB case status. CONCLUSION/CONCLUSIONS:Our findings confirm the role of modifiable risk factors for TB in Kazakhstan; highlighting the importance of developing interventions addressing social determinants and proximate risk factors for high TB burden regions.

The aim of the current systematic review is to examine the relationship between trauma and HIV risk behaviors among both forced and unforced migrant populations from low and middle income countries (LMIC). We conducted a review of studies published from 1995 to 2014. Data were extracted related to (1) the relationship between trauma and HIV risk behaviors, (2) methodological approach, (3) assessment methods, and (4) differences noted between forced and unforced migrants. A total of 340 records were retrieved with 24 studies meeting inclusion criteria. Our review demonstrated an overall relationship between trauma and HIV risk behaviors among migrant populations in LMIC, specifically with sexual violence and sexual risk behavior. However, findings from 10 studies were not in full support of the relationship. Findings from the review suggest that additional research using more rigorous methods is critically needed to understand the nature of the relationship experienced by this key-affected population.

CONTEXT/BACKGROUND:As endorsed by the palliative care "Measuring What Matters" initiative, capturing patients' direct assessment of their care is essential for ongoing quality reporting and improvement. Fostering an environment where seriously ill patients feel heard and understood is of crucial importance to modern health care. OBJECTIVES/OBJECTIVE:To describe the development and performance of a self-report field measure for seriously ill patients to report how well they feel heard and understood in the hospital environment. METHODS:As part of a larger ongoing cohort study of inpatient palliative care, we developed and administered the following point-of-care item: "Over the past two days, how much have you felt heard and understood by the doctors, nurses and hospital staff?" (completely, quite a bit, moderately, slightly, not at all). Participants completed the measure before and the day after palliative care consultation. For the postconsultation version, we changed the time frame from "past two days" to "today." RESULTS:One hundred sixty patients with advanced cancer completed the preconsultation assessment, and 87% of them completed the postconsultation version. Responses encompassed full use of the ordinal scale, did not exhibit ceiling or floor effects, and showed improvement from preassessment to postassessment. The item was quick to administer and easy for patients to complete. CONCLUSION/CONCLUSIONS:The "Heard & Understood" item is a promising self-report quality measure for the inpatient palliative care setting.

This Article argues that recent calls for antitrust enforcement to protect health insurers from hospital and physician consolidation are incomplete. The principal obstacle to effective competition in health care is not that one or the other party has too much bargaining power, but that they have been buying and selling the wrong things. Vigorous antitrust enforcement will benefit health care consumers only if it accounts for the competitive distortions caused by the sector's long history of government regulation. Because of regulation, what pass for products in health care are typically small process steps and isolated components that can be assigned a billing code, even if they do little to help patients. Instead of further entrenching weakly competitive parties engaged in artificial commerce, antitrust enforcers and regulators should work together to promote the sale of fully assembled products and services that can be warranted to consumers for performance and safety. As better products emerge through innovation and market entry, competition may finally succeed at lowering medical costs, increasing access to treatment, and improving quality of care.

OBJECTIVE:To describe the litigation experience in a state with strict tort reform of a large public university health system that has committed to transparency with patients and families in resolving medical errors. DATA SOURCES/STUDY SETTING/METHODS:Secondary data collected from The University of Texas System, which self-insures approximately 6,000 physicians at six health campuses across the state. We obtained internal case management data for all medical malpractice claims closed during 1 year before and 6 recent years following the enactment of state tort reform legislation. STUDY DESIGN/METHODS:We retrospectively reviewed information about malpractice claimants, malpractice claims, and the process and outcome of dispute resolution. DATA COLLECTION/EXTRACTION METHODS/METHODS:We accessed an internal case management database, supplemented by both electronic and paper records compiled by the university's Office of General Counsel. PRINCIPAL FINDINGS/RESULTS:Closed claims dropped from 244 in 2001-2002 to an annual mean of 96 in 2009-2015, closures following lawsuits from 136 in 2001-2002 to an annual mean of 28 in 2009-2015, and paid claims from 60 in 2001 to an annual mean of 20 in 2009-2015. Patterns of resolution suggest efforts by the university to provide some compensation to injured patients in cases that were no longer economically viable for plaintiffs' lawyers to litigate. The percentage of payments relating to cases in which lawsuits had been filed decreased from 82 percent in 2001-2002 to 47 percent in 2009-2012 and again to 29 percent in 2012-2015, although most paid claimants were represented by attorneys. Unrepresented patients received payment in 13 cases closed in 2009-2012 (22 percent of payments; mean amount $60,566) and in 24 cases closed in 2012-2015 (41 percent of payments; mean amount $109,410). Even after tort reform, however, claims that resulted in payment remained slow to resolve, which was worsened for claimants subject to Medicare secondary payer rules. Strict confidentiality became a more common condition of settlement, although restrictions were subsequently relaxed in order to further transparency and improve patient safety. CONCLUSIONS:Malpractice litigation risk diminished substantially for a public university health system in Texas following legal changes that reduced rights to sue and available damages. Health systems operating in a low-tort environment should work with policy makers, plaintiffs' attorneys, and patient groups to assist unrepresented patients, facilitate early mediation, limit nondisclosure obligations following settlement, and expedite the resolution of Medicare liens.

IMPORTANCE/OBJECTIVE:Patient safety experts believe that patients/family members should be involved in adverse event review. However, it is unclear how aware patients/family members are about the causes of adverse events they experienced. OBJECTIVE:To determine whether patients/family members interviewed could identify at least one contributing factor for the event they experienced. Secondary objectives included understanding the way patients/family members became aware of adverse events, the types of contributing factors patients/family members identified for different types of adverse events, and recommendations provided by patients/family members to address the contributing factors. DESIGN/METHODS:We interviewed patients/family members using semistructured interviews to understand their perceptions about why these adverse events occurred. The adverse events occurred between 1991 and 2014. SETTING/METHODS:Participants described adverse events that occurred in various types of health care organizations (i.e., hospitals, ambulatory facilities/clinics, and dental clinics). PARTICIPANTS/METHODS:We interviewed 72 patients and family members who each described a unique adverse event. Eligibility requirements were that patients/family members spoke English or Spanish and were aware of an adverse event that happened to them or a loved one. INTERVENTION(S) FOR CLINICAL TRIALS OR EXPOSURE(S) FOR OBSERVATIONAL STUDIES: N/A. MAIN OUTCOME(S) AND MEASURE(S)/UNASSIGNED:The main outcome was determining whether patients/family members could identify at least one contributing factor they perceived as related to the adverse event they described. RESULTS:Each participant identified at least one contributing factor and on average identified 3.67 contributing factors for their event. The most frequently mentioned contributing factors were Staff Qualifications/Knowledge (79 percent), Safety Policies/Procedures (74 percent), and Communication (64 percent). Participants knew about the contributing factors from personal observation only (32 percent), personal reasoning (11 percent), personal research (7 percent), record review (either their own medical records or reports they received in their own investigation; 6 percent), and being told by a physician (5 percent). Finally, patients/family members were able to provide recommendations that address each of the nine contributing factors we examined. CONCLUSIONS AND RELEVANCE/CONCLUSIONS:Patients/family members identified contributing factors related to their adverse event. Given that these contributing factors might not be known to health care organizations because most participants stated that they were not involved in the analysis process, opportunities for organizational learning from patients are potentially being missed. Health care organizations should interview patients/family about the event that harmed them to help ensure a full understanding of the causes of the event.

Tracing the evolution of political conversations about health care spending and their relationship to the formation of policy is a valuable exercise. Health care spending is about science and ethics, markets and government, freedom and community. By the late 1980s the unique upward trajectory of post-Medicare U.S. health care spending had been established, recessions and tax cuts were eroding federal and state budgets, and efforts to harness market forces to serve policy goals were accelerating. From the initial writings on "managed competition," through the failed Clinton health reform effort in the early 1990s, to the passage of the Affordable Care Act in 2010, the policy narrative of health spending acquired a superficial consistency. On closer examination, however, it becomes apparent that the cost problem has been repeatedly reframed in political discourse even during this relatively brief period. The clearest transition has been from a narrative centered on rationing necessary care to one committed to reducing wasteful care - although the role of accumulated law and regulation in perpetuating waste remains largely unrecognized and the recently articulated commitment to population health seems an imperfect proxy for explicitly developing social solidarity with respect to health and health care in the United States.

Coefficient omega and alpha are both measures of the composite reliability for a set of items. Unlike coefficient alpha, coefficient omega remains unbiased with congeneric items with uncorrelated errors. Despite this ability, coefficient omega is not as widely used and cited in the literature as coefficient alpha. Reasons for coefficient omega's underutilization include a limited knowledge of its statistical properties. However, consistent efforts to understand the statistical properties of coefficient omega can help improve its utilization in research efforts. Here, six approaches for estimating confidence intervals for coefficient omega with unidimensional congeneric items were evaluated through a Monte Carlo simulation. The evaluations were made through simulation conditions that mimic realistic conditions that investigators are likely to face in applied work, including items that are not normally distributed and small sample size(s). Overall, the normal theory bootstrap confidence interval had the best performance across all simulation conditions that included sample sizes less than 100. However, most methods had sound coverage with sample sizes of 100 or more.

OBJECTIVE:Dementia is a debilitating illness with a disproportionate burden in patients with type 2 diabetes (T2D). Among the contributors, genetic variation at the apolipoprotein E locus (APOE) is posited to convey a strong effect. This study compared and contrasted the association of APOE with cognitive performance and cerebral structure in the setting of T2D. RESEARCH DESIGN AND METHODS:European Americans from the Diabetes Heart Study (DHS) MIND (n = 754) and African Americans from the African American (AA)-DHS MIND (n = 517) were examined. The cognitive battery assessed executive function, memory, and global cognition, and brain MRI was performed. RESULTS:In European Americans and African Americans, the APOE E4 risk haplotype group was associated with poorer performance on the modified Mini-Mental Status Examination (P < 0.017), a measure of global cognition. In contrast to the literature, the APOE E2 haplotype group, which was overrepresented in these participants with T2D, was associated with poorer Rey Auditory Verbal Learning Test performance (P < 0.032). Nominal associations between APOE haplotype groups and MRI-determined cerebral structure were observed. CONCLUSIONS:Compared with APOE E3 carriers, E2 and E4 carriers performed worse in the cognitive domains of memory and global cognition. Identification of genetic contributors remains critical to understanding new pathways to prevent and treat dementia in the setting of T2D.

BACKGROUND:Two apolipoprotein L1 gene (APOL1) renal-risk variants in donors and African American (AA) recipient race are associated with worse allograft survival in deceased-donor kidney transplantation (DDKT) from AA donors. To detect other factors impacting allograft survival from deceased AA kidney donors, APOL1 renal-risk variants were genotyped in additional AA kidney donors. METHODS:The APOL1 genotypes were linked to outcomes in 478 newly analyzed DDKTs in the Scientific Registry of Transplant Recipients. Multivariate analyses accounting for recipient age, sex, race, panel-reactive antibody level, HLA match, cold ischemia time, donor age, and expanded criteria donation were performed. These 478 transplantations and 675 DDKTs from a prior report were jointly analyzed. RESULTS:Fully adjusted analyses limited to the new 478 DDKTs replicated shorter renal allograft survival in recipients of APOL1 2-renal-risk-variant kidneys (hazard ratio [HR], 2.00; P = 0.03). Combined analysis of 1153 DDKTs from AA donors revealed donor APOL1 high-risk genotype (HR, 2.05; P = 3 × 10), older donor age (HR, 1.18; P = 0.05), and younger recipient age (HR, 0.70; P = 0.001) adversely impacted allograft survival. Although prolonged allograft survival was seen in many recipients of APOL1 2-renal-risk-variant kidneys, follow-up serum creatinine concentrations were higher than that in recipients of 0/1 APOL1 renal-risk-variant kidneys. A competing risk analysis revealed that APOL1 impacted renal allograft survival, but not recipient survival. Interactions between donor age and APOL1 genotype on renal allograft survival were nonsignificant. CONCLUSIONS:Shorter renal allograft survival is reproducibly observed after DDKT from APOL1 2-renal-risk-variant donors. Younger recipient age and older donor age have independent adverse effects on renal allograft survival.