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"Yang, Jeff"
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Secret identities : the Asian American superhero anthology
\"Top Asian American writers, artists, and comics professionals have come together to create twenty-six original stories centered around Asian American superheroes--stories set in a shadow history of our country, exploring ordinary Asian American life from a decidely extraordinary perspective\"--P. [4] of cover.
Burden and Cost of Outpatient Hemorrhoids in the United States Employer-Insured Population, 2014
2019
Although hemorrhoids are a common indication for seeking health care, there are no contemporary estimates of burden and cost. We examined data from an administrative claims database to estimate health care use and aggregate costs.
We conducted a cross-sectional study using the MarketScan Commercial Claims and Encounters Database for 2014. The analysis included 18.9 million individuals who were aged 18-64 and continuously enrolled with prescription coverage. Outpatient hemorrhoid claims were captured using the International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis codes in the first position, as well as Common Procedural Terminology codes. Prescription medications were identified using National Drug Codes. Annual prevalence and costs were determined by summing gross payments for prescription medications, physician encounters, and facility costs. We used validated weights to standardize annual cost estimates to the US employer-insured population.
In 2014, we identified 227,638 individuals with at least one outpatient hemorrhoid-related claim (annual prevalence, 1.2%). Among those, 119,120 had prescription medication claims, 136,125 had physician claims, and 28,663 had facility claims. After standardizing, we estimated that 1.4 million individuals in the US employer-insured population sought care for hemorrhoids in 2014 for a total annual cost of $770 million. This included $322 million in physician claims, $361 million in outpatient facility claims, and $88 million in prescription medication claims.
The estimated economic burden of hemorrhoids in the employer-insured population approaches $800 million annually. Given the substantial and rising burden and cost, expanded research attention should be directed to hemorrhoidal etiology, prevention, and treatment.
Journal Article
Rising Mortality From Alcohol-Associated Liver Disease in the United States in the 21st Century
2020
In contrast with other developed nations, life expectancy is decreasing in the United States, in part due to increasing mortality from alcohol-associated liver disease (ALD). Up-to-date estimates of ALD mortality are necessary for setting public health priorities to reverse this concerning trend. We therefore aimed to assess current (2017) estimates of ALD mortality and temporal trends from 1999 to 2017.
Using national data from the Centers for Disease Control and Prevention, we analyzed stratified ALD mortality rates between 1999 and 2017. We determined the age-adjusted death rates, stratified by sex and categorized by age, race/ethnicity, urbanization, and census region. We also identified statistically significant changes in the annual rate difference (ARD), annual percentage change (APC), and average APC in ALD mortality.
In 2017, mortality from ALD was higher than any other year since 1999 with age-adjusted rates of 13.1 per 100,000 (95% confidence interval [CI] 12.9-13.3) in men and 5.6 per 100,000 (95% CI 5.4-5.7) in women. Mortality was highest among men and women who were middle aged, Native American, and from rural areas. Since 2006, ALD mortality has increased in almost every age group and race with the exception of non-Hispanic black men. Absolute increases in mortality rates have been particularly pronounced in Native American women (2005-2017 ARD 0.8, 95% CI 0.6-0.9), non-Hispanic/white men (2006-2017 ARD 0.4, 95% CI 0.3-0.4), and non-Hispanic/white women (2013-2017 ARD 0.4, 95% CI 0.3-0.5).
Mortality from ALD is increasing over time in most demographic groups. Increased effort is needed to develop targeted public health strategies to address high and increasing ALD mortality.
Journal Article
Utilization of Colonoscopy Following Treatment Initiation in U.S. Commercially Insured Patients With Inflammatory Bowel Disease, 2013-2019
by
Pate, Virginia
,
Kappelman, Michael D
,
Yang, Jeff Y
in
Adult
,
Clinical Research
,
Colitis, Ulcerative
2023
Abstract
Background
Evaluation of mucosal healing with colonoscopy is recommended for inflammatory bowel disease (IBD) management; however, little is known about real-world use of treat-to-target monitoring following IBD treatment initiation. We aimed to estimate the proportion of U.S. commercially insured IBD patients who receive colonoscopy in the 3 to 15 months after initiating treatment.
Methods
We identified IBD patients, 18 to 64 years of age, in the IBM MarketScan Commercial Claims and Encounters database as those with ≥3 IBD diagnoses prior to initiation of biologic, small molecule, or immunomodulatory treatment. We excluded patients with prior colectomy and with rheumatologic and other indications for these therapies. Colonoscopies were identified using International Classification of Diseases–Ninth Revision, International Classification of Diseases–Tenth Revision, and Current Procedural Terminology procedure codes. We used Kaplan-Meier methods to estimate the proportion of newly treated IBD patients who received colonoscopy in the 3 to 6 months, 3 to 12 months, and 3 to 15 months following treatment initiation, and stratified trends by year, patient age and sex, and region.
Results
From 2013 to 2019, we identified 39 734 initiators of IBD medications (51.9% female, mean age 39.4 years). We observed similar colonoscopy incidence among ulcerative colitis patients (3-6 months: 14.2% [95% confidence interval (CI), 13.6%-14.8%]; 3-12 months: 37.7% [95% CI, 36.8%-38.6%]; 3-15 months: 46.1% [95% CI, 45.2%-47.1%]) and Crohn’s disease patients (3-6 months: 11.2% [95% CI, 10.8%-11.6%]; 3-12 months: 32.2% [95% CI, 31.5%-32.9%]; 3-15 months: CD: 40.1% [95% CI, 39.3%-40.8%]). Overall colonoscopy use was slightly higher among women, patients in the Northeast, and those initiating newer biologic therapies.
Conclusions
Fewer than half of newly treated IBD patients underwent colonoscopy within 3 to 15 months of initiating new treatment, suggesting low uptake of treat-to-target endoscopic disease monitoring in real-world practice.
Lay Summary
Among 39 734 newly treated, commercially insured inflammatory bowel disease patients in the United States, fewer than half (42%) received colonoscopy in the 3 to 15 months following treatment initiation, suggesting low uptake of STRIDE (Selecting Therapeutic Targets in Inflammatory Bowel Disease)-recommended treat-to-target endoscopic disease activity monitoring in real-world practice.
Journal Article
Utilization of Treat-to-Target Monitoring Colonoscopy after Treatment Initiation in the US-Based Study of a Prospective Adult Research Cohort with Inflammatory Bowel Disease (SPARC IBD)
by
Hudgens, Michael G.
,
Lewis, James D.
,
Lund, Jennifer L.
in
Adalimumab - therapeutic use
,
Adult
,
Colitis, Ulcerative - drug therapy
2023
Endoscopic healing has been associated with improved long-term clinical outcomes in inflammatory bowel disease (IBD) and is a recommended target for treatment. Evidence is limited regarding real-world uptake and patterns of treat-to-target monitoring to assess endoscopic healing after treatment initiation. We aimed to estimate the proportion of patients in the Study of a Prospective Adult Research Cohort with IBD (SPARC IBD) who received colonoscopy in the 3-15 months after starting a new IBD treatment.
We identified SPARC IBD patients who initiated a new biologic (infliximab, adalimumab, certolizumab pegol, golimumab, vedolizumab, and ustekinumab) or tofacitinib. We estimated the proportion of patients who received colonoscopies in the 3-15 months after IBD treatment initiation and described use by patient subgroups.
Among 1,708 eligible initiations from 2017 to 2022, the most common medications were ustekinumab (32%), infliximab (22%), vedolizumab (20%), and adalimumab (16%). The median patient age was 38 years, with 66% Crohn's disease; 55% were female, and 12% were non-White. In the 3-15 months after medication initiation, 49.3% (95% confidence interval 46.2%-52.5%) of initiations were followed by a colonoscopy. Colonoscopy use was similar between ulcerative colitis and Crohn's disease, but was higher among male patients, those older than 40 years, and those who received colonoscopy within 3 months of initiation. Colonoscopy use varied between study sites, from 26.6% (15.0%-38.3%) to 63.2% (54.5%-72.0%).
Approximately half of SPARC IBD patients received colonoscopy in the 3-15 months after initiation to a new IBD treatment, suggesting a low uptake of treat-to-target colonoscopy for the assessment of mucosal healing in real-world clinical practice. The variation in colonoscopy use between study sites suggests a lack of consensus and a need for more robust evidence around whether or not the practice of routine monitoring colonoscopy is associated with improved patient outcomes.
Journal Article
Effect of a Cationic Surfactant on Microemulsion Globules and Drug Release from Hydrogel Contact Lenses
by
Zhu, Yuli
,
Yang, Arthur
,
Wang, Nam Sun
in
Bioavailability
,
cationic surfactant
,
Contact lenses
2019
The present study evaluates the in vitro release of diclofenac sodium (DFNa) from contact lenses based on poly-2-hydroxyethyl methacrylate (pHEMA) hydrogels containing an embedded microemulsion to extend release duration. The oil (ethyl butyrate)-in-water microemulsion systems are prepared with two non-ionic surfactants, Brij 97 or Tween 80, together with a long-alkyl chain cationic surfactant, cetalkonium chloride (CKC). Without CKC, Brij 97 or Tween 80-based microemulsions showed average droplet sizes of 12 nm and 18 nm, respectively. The addition of CKC decreased the average droplet sizes to 2–5 nm for both non-ionic surfactants. Such significant reduction in the average droplet size corresponds to an increase in the DFNa release duration as revealed by the in vitro experiments. Contact lens characterization showed that important properties such as optical transparency and water content of Brij 97-based contact lenses with cationic microemulsions was excellent. However, the optical transparency of the corresponding Tween 80 based contact lenses was unsatisfactory. The results indicate that cationic microemulsion-laden contact lenses can benefit from combinatory effects of microemulsions and cationic surfactant at low CKC weight percentage, e.g., with the release of 70% of the drug in 45, 10, and 7 h for B97-CKC-0.45%, CKC-0.45%, and control lenses, respectively. However, the microemulsion effect on extending DFNa release became negligible at the highest CKC weight percentage (1.8%).
Journal Article
Emergency physician ultrasound diagnosis of pneumoperitoneum in intraoperative patients with peritoneal insufflation
2025
To determine the accuracy of emergency physicians (EPs) in diagnosing pneumoperitoneum with POCUS, and if the volume of pneumoperitoneum affects accuracy.
POCUS clips were obtained from patients undergoing intraperitoneal insufflation for an elective laparoscopic procedure. Video clips of the right upper quadrant and epigastric regions were obtained prior to insufflation and then after 500 ml, 1000 ml, and 1500 ml of insufflation. These clips were randomized and reviewed by three blinded ultrasound-trained EPs. For each clip they determined whether pneumoperitoneum was present or not.
EPs chose correctly 71 % of the time. Overall sensitivity for detecting pneumoperitoneum was 66 % with a specificity of 85 %. Sensitivity for detecting small, medium, and large volumes of air was 53 %, 70 %, and 73 % respectively. The AUC for pneumoperitoneum overall was 0.753. The AUC for detecting small, medium, and large volumes of air was 0.688, 0.773, and 0.789 respectively. There was substantial agreement between EPs with a kappa of 0.658.
POCUS for pneumoperitoneum had moderate sensitivity, high specificity and moderate accuracy. The sensitivities increased with increasing volumes of air. This data suggests that POCUS has similar sensitivity to CXR for pneumoperitoneum.
Journal Article
Drug-induced liver injury associated with lopinavir-ritonavir in patients with COVID-19: a disproportionality analysis of U.S. food and drug administration adverse event reporting system (FAERS) data
by
Kinlaw, Alan C
,
Li, Xiaotong
,
Wang, Tiansheng
in
Antiretroviral drugs
,
Antiviral drugs
,
Chloroquine
2021
Background Liver injury has been documented independently in novel coronavirus disease 2019 (COVID-19) patients and patients treated with lopinavir-ritonavir. Objective to investigate the drug-induced liver injury associated with lopinavir-ritonavir among the patients with COVID-19. Methods We conducted a disproportionality analysis of US Food and Drug Administration Adverse Event Reporting System (FAERS) between 2020Q1 and 2021Q1 to evaluate the association between lopinavir-ritonavir and risk of drug-induced liver injury (or severe drug-induced liver injury) and calculated their reporting odds ratios (RORs) with 95% confidence intervals (CIs). Results A total of 3,425 cases of drug-induced liver injury were reported in 19,782 patients with COVID-19. The ROR for drug-induced liver injury was 2.99 (2.59–3.46), 3.16 (2.68–3.73), and 5.39 (4.63–6.26) when comparing lopinavir-ritonavir with all other drugs, hydroxychloroquine/chloroquine only, and remdesivir, respectively. For severe drug-induced liver injury, RORs for lopinavir-ritonavir provided evidence of an association compared with all other drugs (3.98; 3.15–5.05), compared with hydroxychloroquine/chloroquine only (5.33; 4.09–6.94), and compared with remdesivir (3.85; 3.03–4.89). Conclusions In the FAERS, we observed a disproportional signal for drug-induced liver injury associated with lopinavir-ritonavir in patients with COVID-19.
Journal Article