Searched for: school:SOM
Department/Unit:Population Health
The Introduction of a Supermarket via Tax-Credits in a Low-Income Area: The Influence on Purchasing and Consumption
Elbel, Brian; Mijanovich, Tod; Kiszko, Kamila; Abrams, Courtney; Cantor, Jonathan; Dixon, L Beth
Purpose . Interest and funding continue to grow for bringing supermarkets to underserved areas, yet little is known about their impact. Design . A quasi-experimental study was used to determine the impact of a new supermarket opening as a result of tax and zoning incentives. Setting . The study took place in the South Bronx, New York City, New York. SUBJECTS: Studied were residents of two South Bronx neighborhoods deemed high need. Measures . Food purchasing and consumption were examined via surveys and 24-hour dietary recalls before and at two points after the supermarket opened (1-5, 13-17 months). Analysis . Data were analyzed using difference-in-difference models controlling for gender, race and ethnicity, age, education, marital status, and self-reported income. Ordinary least squares and logistic regression models were estimated for continuous and binary outcomes, respectively. Results . At baseline, 94% to 97% of consumers shopped at a supermarket. There was a 2% increase in this behavior in the intervention community (p < .05) not seen in the comparison community. One year later there was a 7% net increase in eating at home (p < .1) and a 20% decrease in drinking sugary beverages (p < .05), but no appreciable change in fruit/vegetable consumption or overall dietary quality. Conclusion . The new supermarket did not result in substantial or broad changes in purchasing patterns or nutritional quality of food consumed, though smaller, positive changes were observed over a 1-year period. Future work should examine different contexts and a broader set of outcomes, including economic development.
PMID: 26389982
ISSN: 2168-6602
CID: 2451902
"Against Medical Advice" Discharges Among HIV-Infected Patients: Health and Health Services Outcomes
Alfandre, David; Yang, Jingyan; Harwood, Katherine; Gordon, Peter; Lekas, Helen-Maria; Chang, Steven J; Yin, Michael T
Nurses are often first to identify and manage a patient leaving against medical advice (AMA), and so they are critical contributors to the development of strategies to address this problem. We studied AMA discharge in order to help develop useful interventions. We performed a cross-sectional analysis of 55,938 discharges from a single urban hospital for the years 2002-2003 and 2012-2013. AMA discharge rates were higher for HIV-infected patients than for patients with alcohol-related disorders or sickle cell anemia in both time periods, even after adjustment for age, race, sex, insurance status, and household income. For HIV infection, 25% of AMA discharges occurred in patients with multiple AMA discharges and 30-day readmission rates were higher after an AMA discharge: odds ratio 1.57 (95% confidence interval 1.01 to 2.43, p = .046). Team-based and nursing interventions that incorporate the treatment-based values and preferences of HIV-infected patients with prior AMA discharges may improve linkage to care and reduce readmissions.
PMID: 27815018
ISSN: 1552-6917
CID: 2330472
Feasibility of Treating Hepatitis C in a Transient Jail Population
MacDonald, Ross; Akiyama, Matthew J; Kopolow, Aimee; Rosner, Zachary; McGahee, Wendy; Joseph, Rodrigue; Jaffer, Mohamed; Venters, Homer
Jails represent a critical component of the public health response to HCV elimination. We report on outcomes of 104 patients receiving HCV treatment from January 1, 2014 to June 30, 2016 in a large urban jail setting. Our data demonstrate that treatment in jails is feasible, but many barriers remain.
PMCID:5569928
PMID: 28852680
ISSN: 2328-8957
CID: 4533002
Using repeated measures to correct correlated measurement errors through orthogonal decomposition
Yu, Chang; Zhang, Sanguo; Friedenreich, Christine; Matthews, Charles E
In a physical activity study, the 7-day physical activity log viewed as an alloyed gold standard was used to correct the measurement error in the physical activity questionnaire. Due to correlations between the errors in the two measurements, the usual regression calibration may result to a biased estimate of the calibration factor. We propose a method of removing the correlation through orthogonal decomposition of the errors, then the usual regression calibration can be applied. Simulation studies show that our method can effectively correct the bias.
PMCID:6428444
PMID: 30906107
ISSN: 0361-0926
CID: 5162872
Vascular Access Placement Order and Outcomes in Hemodialysis Patients: A Longitudinal Study
Murea, Mariana; Brown, W Mark; Divers, Jasmin; Moossavi, Shahriar; Robinson, Todd W; Bagwell, Benjamin; Burkart, John M; Freedman, Barry I
BACKGROUND:Arteriovenous accesses (AVA) in patients performing hemodialysis (HD) are labeled "permanent" for AV fistulas (AVF) or grafts (AVG) and "temporary" for tunneled central venous catheters (TCVC). Durability and outcomes of permanent vascular accesses based on the sequence in which they were placed or used receives little attention. This study analyzed longitudinal transitions between TCVC-based and AVA-based HD outcomes according to the order of placement. METHODS:All 391 patients initiating chronic HD via a TCVC between 2012 and 2013 at 12 outpatient academic dialysis units were included in this study. Chronological distributions of HD vascular accesses were recorded over a mean (SD) of 2.8 (0.9) years and sequentially grouped into periods for TCVC-delivered and AVA-delivered (AVF or AVG) HD. Primary AVA failure and cumulative access survival were evaluated based on access placement sequence and type, adjusting for age. RESULTS:In total, 92.3% (361/391) of patients underwent 497 AVA placement surgeries. Analyzing the initial 3 surgeries, primary AVF failure rates increased with each successive fistula placement (p = 0.008). Among the 82.9% (324/391) of TCVC patients successfully converted to an AVA, 30.9% returned to a TCVC, followed by a 58.0% conversion rate to another AVA. Annual per-patient vascular access transition rates were 2.02 (0.09) HD periods using a TCVC and 0.54 (0.03) HD periods using an AVA. Comparing the first AVA used with the second, cumulative access survivals were 701.0 (370.0) vs. 426.5 (275.0) days, respectively. Excluding those never converting to an AVF or AVG, 169 (52.2%) subsequently converted from a TCVC to a permanent access and received HD via AVA for ≥80% of treatments. CONCLUSIONS:HD vascular access outcomes differ based on the sequence of placement. In spite of frequent AVA placements, only half of patients effectively achieved a "permanent" vascular access and used an AVA for the majority of HD treatments.
PMID: 28930719
ISSN: 1421-9670
CID: 4318632
Executive Function Buffers the Association between Early Math and Later Academic Skills
Ribner, Andrew D; Willoughby, Michael T; Blair, Clancy B
Extensive evidence has suggested that early academic skills are a robust indicator of later academic achievement; however, there is mixed evidence of the effectiveness of intervention on academic skills in early years to improve later outcomes. As such, it is clear there are other contributing factors to the development of academic skills. The present study tests the role of executive function (EF) (a construct made up of skills complicit in the achievement of goal-directed tasks) in predicting 5th grade math and reading ability above and beyond math and reading ability prior to school entry, and net of other cognitive covariates including processing speed, vocabulary, and IQ. Using a longitudinal dataset of N = 1292 participants representative of rural areas in two distinctive geographical parts of the United States, the present investigation finds EF at age 5 strongly predicts 5th grade academic skills, as do cognitive covariates. Additionally, investigation of an interaction between early math ability and EF reveals the magnitude of the association between early math and later math varies as a function of early EF, such that participants who have high levels of EF can "catch up" to peers who perform better on assessments of early math ability. These results suggest EF is pivotal to the development of academic skills throughout elementary school. Implications for further research and practice are discussed.
PMCID:5448237
PMID: 28611712
ISSN: 1664-1078
CID: 2614362
Receptor for advanced glycation end-products and World Trade Center particulate induced lung function loss: A case-cohort study and murine model of acute particulate exposure
Caraher, Erin J; Kwon, Sophia; Haider, Syed H; Crowley, George; Lee, Audrey; Ebrahim, Minah; Zhang, Liqun; Chen, Lung-Chi; Gordon, Terry; Liu, Mengling; Prezant, David J; Schmidt, Ann Marie; Nolan, Anna
World Trade Center-particulate matter(WTC-PM) exposure and metabolic-risk are associated with WTC-Lung Injury(WTC-LI). The receptor for advanced glycation end-products (RAGE) is most highly expressed in the lung, mediates metabolic risk, and single-nucleotide polymorphisms at the AGER-locus predict forced expiratory volume(FEV). Our objectives were to test the hypotheses that RAGE is a biomarker of WTC-LI in the FDNY-cohort and that loss of RAGE in a murine model would protect against acute PM-induced lung disease. We know from previous work that early intense exposure at the time of the WTC collapse was most predictive of WTC-LI therefore we utilized a murine model of intense acute PM-exposure to determine if loss of RAGE is protective and to identify signaling/cytokine intermediates. This study builds on a continuing effort to identify serum biomarkers that predict the development of WTC-LI. A case-cohort design was used to analyze a focused cohort of male never-smokers with normal pre-9/11 lung function. Odds of developing WTC-LI increased by 1.2, 1.8 and 1.0 in firefighters with soluble RAGE (sRAGE)>/=97pg/mL, CRP>/=2.4mg/L, and MMP-9=397ng/mL, respectively, assessed in a multivariate logistic regression model (ROCAUC of 0.72). Wild type(WT) and RAGE-deficient(Ager-/-) mice were exposed to PM or PBS-control by oropharyngeal aspiration. Lung function, airway hyperreactivity, bronchoalveolar lavage, histology, transcription factors and plasma/BAL cytokines were quantified. WT-PM mice had decreased FEV and compliance, and increased airway resistance and methacholine reactivity after 24-hours. Decreased IFN-gamma and increased LPA were observed in WT-PM mice; similar findings have been reported for firefighters who eventually develop WTC-LI. In the murine model, lack of RAGE was protective from loss of lung function and airway hyperreactivity and was associated with modulation of MAP kinases. We conclude that in a multivariate adjusted model increased sRAGE is associated with WTC-LI. In our murine model, absence of RAGE mitigated acute deleterious effects of PM and may be a biologically plausible mediator of PM-related lung disease.
PMCID:5604982
PMID: 28926576
ISSN: 1932-6203
CID: 2706992
Apolipoprotein L1 risk variants associate with prevalent atherosclerotic disease in African American systemic lupus erythematosus patients
Blazer, Ashira; Wang, Binhuan; Simpson, Danny; Kirchhoff, Tomas; Heffron, Sean; Clancy, Robert M; Heguy, Adriana; Ray, Karina; Snuderl, Matija; Buyon, Jill P
OBJECTIVE: Atherosclerosis is exaggerated in African American (AA) systemic lupus erythematosus (SLE) patients, with doubled cardiovascular disease (CVD) risk compared to White patients. The extent to which common Apolipoprotein L1 (APOL1) risk alleles (RA) contribute to this trend is unknown. This retrospective cohort study assessed prevalent atherosclerotic disease across APOL1 genotypes in AA SLE patients. METHODS: One hundred thirteen AA SLE subjects were APOL1-genotyped and stratified as having: zero risk alleles, one risk allele, or two risk alleles. Chart review assessed CVD manifestations including abdominal aortic aneurysm, angina, carotid artery disease, coronary artery disease, myocardial infarction, peripheral vascular disease, stroke, and vascular calcifications. Associations between the genotypes and a composite endpoint defined as one or more CVD manifestations were calculated using logistic regression. Symptomatic atherosclerotic disease, excluding incidental vascular calcifications, was also assessed. RESULTS: The 0-risk-allele, 1-risk-allele and 2-risk-allele groups, respectively, comprised 34%, 53%, and 13% of the cohort. Respectively, 13.2%, 41.7%, and 60.0% of the 0-risk allele, 1-risk-allele, and 2-risk-allele groups met the composite endpoint of atherosclerotic CVD (p = 0.001). Adjusting for risk factors-including smoking, ESRD, BMI >25 and hypertension-we observed an association between carrying one or more RA and atherosclerotic CVD (OR = 7.1; p = 0.002). For symptomatic disease, the OR was 3.5 (p = 0.02). In a time-to-event analysis, the proportion of subjects free from the composite primary endpoint, symptomatic atherosclerotic CVD, was higher in the 0-risk-allele group compared to the 1-risk-allele and 2-risk-allele groups (chi2 = 6.5; p = 0.04). CONCLUSIONS: Taken together, the APOL1 RAs associate with prevalent atherosclerotic CVD in this cohort of AA SLE patients, perhaps reflecting a potentiating effect of SLE on APOL1-related cardiovascular phenotypes.
PMCID:5574561
PMID: 28850570
ISSN: 1932-6203
CID: 2679052
Pre-Migration Trauma Exposure and Mental Health Functioning among Central American Migrants Arriving at the US Border
Keller, Allen; Joscelyne, Amy; Granski, Megan; Rosenfeld, Barry
In recent years, increasing numbers of families and individuals have arrived at the U.S. border from Central America, in particular, from Honduras, El Salvador, and Guatemala. This study sought to examine pre-migration trauma exposure and current mental health functioning of migrant families arriving at the U.S. border from the Northern Triangle region, with specific attention to the reasons offered for leaving their home country and the frequency with which migrant families appear to satisfy legal criteria for asylum We interviewed 234 adults in McAllen, Texas, using a structured interview and standardized questionnaires to assess exposure to trauma prior to migration, reasons for leaving their home country and symptoms of posttraumatic stress and depression. We found that 191 participants (83%) cited violence as a reason for fleeing their country, 119 individuals (69%) did not report the events to the police out of fear of gang-related retaliation or police corruption, and 90% (n = 204) reported being afraid to return to their native country. Based on self-report symptom checklists, 32% of the sample met diagnostic criteria for PTSD (n = 51), 24% for depression (n = 36), and 17% for both disorders (n = 25). Examining these data against the criteria for asylum in the U.S., we found that 70% of the overall sample (n = 159) met criteria for asylum, including 80% of those from El Salvador, 74% from Honduras, and 41% from Guatemala. These findings suggest that the majority of Central American migrants arriving at the U.S. border have significant mental health symptoms in response to violence and persecution, and warrant careful consideration for asylum status.
PMCID:5224987
PMID: 28072836
ISSN: 1932-6203
CID: 2400692
New Promising Strategies in Oncofertility
Hudson, Janella N; Stanley, Nathanael B; Nahata, Leena; Bowman-Curci, Meghan; Quinn, Gwendolyn P
INTRODUCTION/BACKGROUND:Approximately 70,000 adolescent and young adults (AYA) are diagnosed with cancer each year. While advancements in treatment have led to improved prognosis and survival for patients, these same treatments can adversely affect AYA reproductive capacity. Localized treatments such as surgery and radiation therapy may affect fertility by removing or damaging reproductive organs, and systemic therapies such as chemotherapy can be toxic to gonads, (ovaries and testicles), thus affecting fertility and/or endocrine function. This can be traumatic for AYA with cancer as survivors often express desire to have genetic children and report feelings of regret or depression as a result of infertility caused by cancer treatments. AREAS COVERED/UNASSIGNED:Emerging technologies in the field of assisted reproductive technology offer new promise for preserving the reproductive capacity of AYA cancer patients prior to treatment as well as providing alternatives for survivors. The following review revisits contemporary approaches to fertility preservation as well newly developing technologies. EXPERT COMMENTARY/UNASSIGNED:There are several advances in ART that hold promise for patients and survivors. However there are challenges that inhibit uptake including poor communication between providers and patients about risks and fertility preservation options; high costs; and lack of insurance coverage for fertility preservation services.
PMCID:5612405
PMID: 28959743
ISSN: 2380-9000
CID: 2903372