Faculty Bibliography

OBJECTIVE:Inpatient discharge education is often suboptimal. Measures of parents' perceived comprehension of discharge instructions are included in national metrics given linkage to morbidity; few studies compare parents' perceived and actual comprehension. We (1) compared parent perceived and actual comprehension of discharge instructions and (2) assessed associations between plan complexity and parent health literacy with overestimation of comprehension (perceive comprehension but lack actual comprehension). METHODS:Prospective cohort study of English/Spanish-speaking parents (n=192) of inpatients ≤12 years old and discharged on ≥1 daily medication from an urban public hospital. We used McNemar's tests to compare parent perceived (agree/strongly agree on 5-point Likert scale) and actual comprehension (concordance of parent report with medical record) of instructions (domains: medications, appointments, return precautions, and restrictions). Generalized estimating equations were performed to assess associations between low parent health literacy (Newest Vital Sign score ≤3) and plan complexity with overestimation of comprehension. RESULTS:Medication side effects were the domain with lowest perceived comprehension (80%), while >95% of parents perceived comprehension for other domains. Actual comprehension varied by domain (41-87%) and was lower than perceived comprehension. Most (84%) parents overestimated comprehension in ≥1 domain. Plan complexity (adjusted odds ratio [aOR] 3.6 [95% CI 2.9-4.7]) and low health literacy (aOR 1.9 [1.3-2.6]) were associated with overestimation of comprehension. CONCLUSIONS:Parental perceived comprehension of discharge instructions overestimated actual comprehension in most domains. Plan complexity and low health literacy were associated with overestimation of comprehension. Future interventions should incorporate assessment of actual comprehension and standardization of discharge instructions.

BACKGROUND:Optical coherence tomography (OCT) studies have demonstrated differences between people with schizophrenia and controls. Many questions remain including the agreement between scanners. The current study seeks to determine inter-device agreement of OCT data in schizophrenia compared to controls and to explore the relations between OCT and visual function measures. METHODS:Participants in this pilot study were 12 individuals with schizophrenia spectrum disorders and 12 age- and sex-matched controls. Spectralis and Cirrus OCT machines were used to obtain retinal nerve fiber layer (RNFL) thickness and macular volume. Cirrus was used to obtain ganglion cell layer + inner plexiform layer (GCL + IPL) thickness. Visual function was assessed with low-contrast visual acuity and the King-Devick test of rapid number naming. RESULTS:There was excellent relative agreement in OCT measurements between the two machines, but poor absolute agreement, for both patients and controls. On both machines, people with schizophrenia showed decreased macular volume but no difference in RNFL thickness compared to controls. No between-group difference in GCL + IPL thickness was found on Cirrus. Controls showed significant associations between King-Devick performance and RNFL thickness and macular volume, and between low-contrast visual acuity and GCL + IPL thickness. Patients did not show significant associations between OCT measurements and visual function. CONCLUSIONS:Good relative agreement suggests that the offset between machines remains constant and should not affect comparisons between groups. Decreased macular volume in individuals with schizophrenia on both machines supports findings of prior studies and provides further evidence that similar results may be found irrespective of OCT device.

PURPOSE/OBJECTIVE:Despite known benefits of cardiac rehabilitation (CR), early termination (failure to complete >1 mo of CR) attenuates these benefits. We analyzed whether early termination varied by referral indication in the context of recent growth in patients referred for heart failure with reduced ejection fraction (HFrEF). METHODS:We reviewed records from 1111 consecutive patients enrolled in the NYU Langone Health Rusk CR program (2013-2017). Sessions attended, demographics, and comorbidities were abstracted, as well as primary referral indication: HFrEF or ischemic heart disease (IHD; including post-coronary revascularization, post-acute myocardial infarction, or chronic stable angina). We compared rates of early termination between HFrEF and IHD, and used multivariable logistic regression to determine whether differences persisted after adjusting for relevant characteristics (age, race, ethnicity, body mass index, smoking, hypertension, chronic obstructive pulmonary disease, and depression). RESULTS:Mean patient age was 64 yr, 31% were female, and 28% were nonwhite. Most referrals (85%) were for IHD; 15% were for HFrEF. Early termination occurred in 206 patients (18%) and was more common in HFrEF (26%) than in IHD (17%) (P < .01). After multivariable adjustment, patients with HFrEF remained at higher risk of early termination than patients with IHD (unadjusted OR = 1.73, 95% CI, 1.17-2.54; adjusted OR = 1.53, 95% CI, 1.01-2.31). CONCLUSIONS:Nearly 1 in 5 patients in our program terminated CR within 1 mo, with HFrEF patients at higher risk than IHD patients. While broad efforts at preventing early termination are warranted, particular attention may be required in patients with HFrEF.

Directed acyclic graphs (DAGs), a prominent tool for expressing assumptions in epidemiologic research, are most useful when the hypothetical data generating structure is correctly encoded. Understanding a study's data generating structure and translating that data structure into a DAG can be challenging, but these skills are often glossed over in training. Campbell and Stanley's framework for causal inference has been extraordinarily influential in social science training programs but has received less attention in epidemiology. Their work, along with subsequent revisions and enhancements based on practical experience conducting empirical studies, presents a catalog of 37 threats to validity describing reasons empirical studies may fail to deliver causal effects. We interpret most of these threats to study validity as suggestions for common causal structures. Threats are organized into issues of statistical conclusion validity, internal validity, construct validity, or external validity. To assist epidemiologists in drawing the correct DAG for their application, we map the correspondence between threats to validity and epidemiologic concepts that can be represented with DAGs. Representing these threats as DAGs makes them amenable to formal analysis with d-separation rules and breaks down cross-disciplinary language barriers in communicating methodologic issues.

Rationale & Objectives/UNASSIGNED:Recent data demonstrate that center volume is not a factor in the outcomes of adult kidney transplant recipients. This study assessed whether center volume affects graft survival in pediatric patients who received a kidney transplant. Study Design/UNASSIGNED:Case-cohort study. Setting & Participants/UNASSIGNED:Kidney transplantation centers, recipients younger than 18 years. Results/UNASSIGNED: = 0.02. Although outcomes for deceased donor kidney recipients were similar in the 3 volume categories, outcomes in patients who received a living kidney donation were better in the high-volume centers. Low household income was associated with poorer outcomes. However, 3-year graft survival was similar in the 3 center volume categories in high and low mean household income states. Limitations/UNASSIGNED:Lack of information for complications and individual family household income of recipients. Conclusions/UNASSIGNED:Transplantation outcomes are worse in pediatric patients treated at lower-volume centers. The difference was more pronounced for patients receiving living versus deceased donor kidneys. The distribution of household income in pediatric transplant recipients may also be a factor that contributes to lower 3-year graft survival in low-volume centers.

Background and Objectives: To rapidly develop, implement, and evaluate emergency department (ED) clinical protocols for initiation of buprenorphine (E

As the technology for ectogenesis continues to advance, the ethical implications of such developments should be thoroughly and proactively explored. The possibility of full ectogenesis remains hypothetical at present, and myriad concerns regarding the safety and efficacy of the technology must be evaluated and addressed, while pressing moral considerations should be fully deliberated. However, it is conceivable that the technology may become sufficiently well established in the future and that eventually full ectogenesis might be deemed ethically acceptable as a reproductive alternative to gestation within a human womb under certain circumstances. If the safety and efficacy of full ectogenesis are established, if ethical dilemmas are sufficiently well addressed, and if the technology is offered as a reproductive option to cisgender heterosexual individuals or couples desiring to become parents, there is a moral obligation grounded in social justice to ensure that full ectogenesis be made available to individuals or couples identifying as members of sexual- or gender-minority groups who likewise seek to pursue parenthood. We examine the history of access to current family-building options, including assisted reproductive technology, surrogacy and adoption, for these populations and conclude that in the absence of robust empirical evidence suggesting an increased risk of harm to children of individuals and couples who identify as members of sexual- or gender-minority groups, equitable access to ectogenesis as a pathway to parenthood for sexual and gender minorities must be assured as a matter of reproductive justice.

Beta amyloid (Aβ) accumulation is the earliest pathological marker of Alzheimer's disease (AD), but early AD pathology also affects white matter (WM) integrity. We performed a cross-sectional study including 44 subjects (23 healthy controls and 21 mild cognitive impairment or early AD patients) who underwent simultaneous PET-MR using 18F-Florbetapir, and were categorized into 3 groups based on Aβ burden: Aβ- [mean mSUVr ≤1.00], Aβi [1.00 < mSUVr <1.17], Aβ+ [mSUVr ≥1.17]. Intergroup comparisons of diffusion MRI metrics revealed significant differences across multiple WM tracts. Aβi group displayed more restricted diffusion (higher fractional anisotropy, radial kurtosis, axonal water fraction, and lower radial diffusivity) than both Aβ- and Aβ+ groups. This nonmonotonic trend was confirmed by significant continuous correlations between mSUVr and diffusion metrics going in opposite direction for 2 cohorts: pooled Aβ-/Aβi and pooled Aβi/Aβ+. The transient period of increased diffusion restriction may be due to inflammation that accompanies rising Aβ burden. In the later stages of Aβ accumulation, neurodegeneration is the predominant factor affecting diffusion.

PURPOSE:Cohort participants usually have lower mortality rates than nonparticipants, but it is unclear if this survival advantage decreases or increases as cohort studies age. METHODS:We used a 1975 private census of Washington County, Maryland, to compare mortality among cohort participants to nonparticipants for three cohorts, Campaign Against Cancer and Stroke (CLUE I), Campaign Against Cancer and Heart Disease (CLUE II), and Atherosclerosis Risk In Communities (ARIC) initiated in 1974, 1989, and 1986, respectively. We analyzed mortality risk using time-truncated Cox regression models. RESULTS:Participants had lower mortality risk in the first 10 years of follow-up compared with nonparticipants (fully adjusted average hazard ratio [95% confidence intervals] were 0.72 [0.68, 0.77] in CLUE I, 0.69 [0.65, 0.73] in CLUE II, and 0.74 [0.63, 0.86] in ARIC), which persisted over 20 years of follow-up (0.81 [0.78, 0.84] in CLUE I, 0.87 [0.84, 0.91] in CLUE II, and 0.90 [0.83, 0.97] in ARIC). This lower average hazard for mortality among participants compared with nonparticipants attenuated with longer follow-up (0.99 [0.96, 1.01] after 30+ years in CLUE I, 1.02 [0.99, 1.05] after 30 years in CLUE II, and 0.95 [0.89, 1.00] after 30+ years in ARIC). In ARIC, participants who did not attend visits had higher mortality, but those who did attend visits had similar mortality to the community. CONCLUSIONS:Our results suggest the volunteer selection for mortality in long-standing epidemiologic cohort studies often diminishes as the cohort ages.