A5073646359- Air Quality and Health Impacts
- Intraocular Surgery and Lenses
- Air Quality Monitoring and Forecasting
- Corneal surgery and disorders
- Ophthalmology and Visual Impairment Studies
- Health disparities and outcomes
- Noise Effects and Management
- Climate Change and Health Impacts
- Health, Environment, Cognitive Aging
- Effects and risks of endocrine disrupting chemicals
- COVID-19 epidemiological studies
- Atmospheric chemistry and aerosols
- Food Security and Health in Diverse Populations
- Global Cancer Incidence and Screening
- Data-Driven Disease Surveillance
- COVID-19 and healthcare impacts
- Retinal and Macular Surgery
- Urban Transport and Accessibility
- Smoking Behavior and Cessation
- Global Health Care Issues
- Vehicle emissions and performance
- Statistical Methods and Bayesian Inference
- Birth, Development, and Health
- Toxic Organic Pollutants Impact
- Ocular Infections and Treatments
Medical University of South Carolina
2016-2025
MUSC Hollings Cancer Center
2024
Emory University
2012-2014
Georgia College & State University
2009-2012
University of Georgia
2008-2012
Monash University
2010-2011
Australian Regenerative Medicine Institute
2009
University of South Australia
2000
Princess of Wales Community Hospital
1985-1997
Alexandra Hospital
1989-1996
The response to the COVID-19 pandemic became increasingly politicized in U.S., and political affiliation of state leaders may contribute policies affecting spread disease. This study examines differences infection, death, testing by governor party across 50 U.S. states District Columbia.A longitudinal analysis was conducted December 2020 examining incidence, testing, test positivity rates from March 15, through 2020. A Bayesian negative binomial model fit estimate daily risk ratios posterior...
Socially vulnerable communities may be at higher risk for COVID-19 outbreaks in the US. However, no prior studies examined temporal trends and differential effects of social vulnerability on incidence death rates. Therefore, we among counties with high low to quantify disparities over time.We conducted a longitudinal analysis examining rates from March 15 December 31, 2020, each US county using data USAFacts. We classified Social Vulnerability Index (SVI), percentile-based measure Centers...
Importance For patients with head and neck squamous cell carcinoma (HNSCC), initiation of postoperative radiation therapy (PORT) within 6 weeks surgery is recommended by the National Comprehensive Cancer Network Guidelines Commission on Cancer. Although individual-level measures socioeconomic status are associated receipt timely, guideline-adherent PORT, role neighborhood-level disadvantage has not been examined. Objective To characterize association delays in receiving PORT. Design,...
The multifocal posterior chamber intraocular lens was implanted in 46 eyes of 38 patients as part the first clinical trial this target-type implant. No major complications were reported. Visual acuity results for distance and near vision excellent, with best case visual acuities better than 20/40 over 95% three months.
Opacification of the posterior capsule occurs most commonly from Elschnig pearl migration or fibrosis. The physical contact a chamber lens, particularly one with reverse optic, has been postulated to decrease rate capsular opacification by creating barrier migration. This randomized prospective clinical study comparing 3M style 34S convex-plano optic and 34R plano-convex (reverse) lens demonstrated statistically significant reduction in pearls at year lenses (18.2% versus 7.6%, P = .03). No...
War destroys health facilities and displaces workers. It has a devastating impact on population health, especially in vulnerable populations. We assess the geographical distribution of war healthcare delivery by comparing pre-November 2020 November to June 2021 status Tigray region Ethiopia. Data were collected from February 2021, during an active civil imposed communication blackout Tigray. Primary data verified multiple sources. include information facility type, geocoding (fully...
Development of exposure metrics that capture features the multipollutant environment are needed to investigate health effects pollutant mixtures. This is a complex problem requires development new methodologies. Present self-organizing map (SOM) framework for creating ambient air quality classifications group days with similar profiles. Eight years day-level data from Atlanta, GA, ten pollutants collected at central monitor location were classified using SOM into set day types based on their...
Phthalates and their replacements have been implicated as developmental toxicants. Young children may be exposed to phthalates/replacements when using skin care products (SCPs).
Exposure metrics that identify spatial contrasts in multipollutant air quality are needed to better understand geographies and health effects from pollution. Our aim is improve understanding of: (1) long-term distributions of multiple pollutants; (2) demographic characteristics populations residing within areas differing quality.We obtained average concentrations for ten pollutants (p=10) across a 12 km grid (n=253) covering Atlanta, Georgia 2002-2008. We apply self-organizing map (SOM) our...
Silicone wristbands can assess multipollutant exposures in a non-invasive and minimally burdensome manner, which may be suitable for use among pregnant women. We investigated silicone as passive environmental samplers the New Hampshire Birth Cohort Study, prospective pregnancy cohort. used to exposure broad range of organic chemicals, identified profiles using self-organizing maps (SOMs), assessed temporal consistency determinants during pregnancy. Participants (n=255) wore one week at 12...
Background: We evaluated air emissions of industrial compounds, many which have carcinogenic or endocrine disrupting properties, in relation to breast cancer incidence. Methods: Using the United States Environmental Protection Agency’s Toxics Release Inventory, we quantified 28 compounds near Sister Study participants’ residences during 10 years leading up study enrollment (2003-2006; n=46,150). used Cox proportional hazards regression estimate adjusted hazard ratios (HR) and 95% confidence...
Hypertensive disorders of pregnancy (HDP) and chronic hypertension (CHTN) are related to maternal infant morbidity mortality. We aimed assess HDP CHTN prevalence changes before (January 2015-February 2020) during the COVID-19 pandemic (March 2020-December 2021) in South Carolina (SC). SC live births (2015-2021) were included (194,841 non-Hispanic White [NHW]); 108,195 Black [NHB]; 25,560 Hispanic; 16,346 other race/ethnicity). Linked birth certificate hospitalization/ED data was used....
<h3>Introduction</h3> Bronchodilator response (BDR) is a measurement of acute bronchodilation in to short-acting β2-agonists, with heritability between 10 and 40%. Identifying genetic variants associated BDR may lead better understanding its complex pathophysiology. <h3>Methods</h3> We performed genome-wide association study (GWAS) six adult cohorts participants European ancestry (EA) African (AA) including community ascertained on the basis obstructive pulmonary disease. Validation analysis...
AIMS/BACKGROUND--Simultaneous bilateral extracapsular cataract extraction (SBCE) is not routinely performed in the developed world. This study investigated safety and efficacy of this procedure as UK. METHODS--A review 319 consecutive patients (638 eyes) who underwent SBCE with posterior chamber intraocular lens implantation presented. RESULTS--The incidence intraoperative complications was 7.7%. These included capsule rupture (0.8%) vitreous loss (0.3%). Postoperative were seen 8.7%...
The purpose of this study was to examine the association between neighborhood social deprivation and individual-level characteristics on breast cancer staging in African American white patients. We established a retrospective cohort patients with diagnosed from 1996 2015 using South Carolina Central Cancer Registry. abstracted sociodemographic clinical variables registry linked these data county-level composite that captured conditions—the index (SDI). Data were analyzed chi-square tests,...
Objective We aim to investigate the impact of neighborhood‐level social vulnerability on otolaryngology care for children with obstructive sleep‐disordered breathing (SDB). Study Design Retrospective cohort study. Setting A tertiary children’s hospital. Methods Children aged 2 17 years SDB were included. Residential addresses geocoded geographic information systems, and spatial overlays used assign census tract–level index (SVI) scores each participant. Multivariable logistic regression...
Preterm delivery (PTD) complications are a major cause of childhood morbidity and mortality. We aimed to assess trends in PTD small for gestational age (SGA) whether varied between race–ethnic groups South Carolina (SC). utilized 2015–2021 SC vital records linked hospitalization emergency department records. was defined as clinically estimated gestation less than (<) 37 weeks (wks.) with subgroup analyses < 34 wks. 28 SGA infants weighing below the 10th percentile age. This...