Yu-Che Lee

Dr. Yu-Che Lee

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Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2023 in Annals of the American Thoracic Society
Verified
Journal Article
Closed access
YLYu-Che Lee
Yu-Che Lee
KCKo-Yun Chang
Ko-Yun Chang
MMMehdi Mirsaeidi
Mehdi Mirsaeidi
Rationale: Chronic respiratory diseases, the third leading cause of death worldwide, have been associated with significant morbidity, mortality, and increased economic burden that make a profound impact on individuals and communities. However, limited research has delineated complex relationships between specific sociodemographic disparities and chronic respiratory disease outcomes among U.S. counties. Objectives: To assess the association of county-level sociodemographic vulnerabilities with chronic respiratory disease mortality in the United States. Methods: Chronic respiratory disease mortality data among U.S. counties for 2014–2018 was obtained from the CDC WONDER (Centers for Disease Control and Prevention Wide-ranging Online Data for Epidemiologic Research) database. The social vulnerability index (SVI), including subindices of socioeconomic status, household composition and disability, minority status and language, and housing type and transportation, is a composite, percentile-based measure developed by the CDC to evaluate county-level sociodemographic vulnerabilities to disasters. We examined county-level sociodemographic characteristics from the SVI and classified the percentile rank into quartiles, with a higher quartile indicating greater vulnerability. The associations between chronic respiratory disease mortality and overall SVI, its four subindices, and each county characteristic were analyzed by negative binomial regression. Results: From 2014 to 2018, the age-adjusted mortality per 1,000,000 population attributed to chronic lower respiratory disease was 406.4 (95% confidence interval [CI], 405.5–407.3); chronic obstructive pulmonary disease (COPD), 393.7 (392.8–394.6); asthma, 10.0 (9.9–10.2); interstitial lung disease (ILD), 50.5 (50.1–50.8); idiopathic pulmonary fibrosis (IPF), 37.0 (36.7–37.3); and sarcoidosis, 5.3 (5.2–5.4). Counties in the higher quartile of overall SVI were significantly associated with greater disease mortality (chronic lower respiratory disease, incidence rate ratios: fourth vs. first quartile, 1.43 [95% CI, 1.39–1.48]; COPD, 1.44 [1.39–1.49]; asthma, 2.06 [1.71–2.48]; ILD, 1.07 [1.02–1.13]; IPF, 1.14 [1.06–1.22]; sarcoidosis, 2.01 [1.44–2.81]). In addition, higher mortality was also found in counties in the higher quartile of each subindex and most sociodemographic characteristics. Conclusions: Chronic respiratory disease mortalities were significantly associated with county-level sociodemographic determinants as measured by the SVI in the United States. These findings suggested sociodemographic determinants may add a considerable barrier to establishing health equity. Multidegree public health strategies and clinical interventions addressing inequitable outcomes of chronic respiratory disease should be developed and targeted in areas with greater social vulnerability and disadvantage.

15 May 2025 in Blood Advances
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Journal Article
Open access
JSJunmin Song
Junmin Song
YCYu-Cheng Chang
Yu-Cheng Chang
SOSoravis Osataphan
Soravis Osataphan
YLYu-Che Lee
Yu-Che Lee
KCKo-Yun Chang
Ko-Yun Chang
RPRushad Patell
Rushad Patell
Glucagon-like peptide 1 receptor agonists (GLP1-RA) are antidiabetic agents recently approved for weight loss. Obesity is an established risk factor for venous thromboembolism (VTE). Moreover, preclinical studies have shown that GLP1-RA may attenuate thromboxane-induced platelet activation. Therefore, we hypothesized that GLP1-RA use may reduce the risk of VTE. We performed a target trial emulation (TTE) using a population-based database of electronic health records to evaluate whether GLP1-RA use is associated with a reduction in VTE in patients with type 2 diabetes mellitus (T2DM) compared with dipeptidyl peptidase-4 inhibitors (DPP4i). Patients who were newly initiated on GLP1-RA were propensity score matched to patients who were newly initiated on DPP4i. We evaluated the primary outcome, composite VTE, identified using ICD-10 (International Classification of Diseases, Tenth Revision) codes, within 12 months of the initiation of GLP1-RA or DPP4i. The study cohort comprised 540 258 patients with 270 129 individuals receiving either GLP1-RA or DPP4i. Over 12 months of follow-up, patients who received GLP1-RA had a lower incidence of VTE compared with patients who received DPP4i (6.1 vs 7.6 events per 1000 patient-years; hazard ratio [HR], 0.78; 95% confidence interval [CI], 0.73-0.83). This was similar for pulmonary embolism (2.9 vs 3.8 events per 1000 patient-years; HR, 0.74; 95% CI, 0.68-0.82) and deep vein thrombosis (3.9 vs 4.7 events per 1000 patient-years; HR, 0.81; 95% CI, 0.75-0.88). In this propensity score-matched, TTE study, patients with T2DM who received a GLP1-RA had a lower risk of VTE at 1 year compared with patients who received DPP4i.

7 February 2022 in Sleep Medicine
Verified
Journal Article
Closed access
YLYu-Che Lee
Yu-Che Lee
KCKo-Yun Chang
Ko-Yun Chang
MMM. Jeffery Mador
M. Jeffery Mador

29 November 2021 in JAMA Network Open
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Journal Article
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YLYu-Che Lee
Yu-Che Lee
KCKo-Yun Chang
Ko-Yun Chang
SSSanjay Sethi
Sanjay Sethi
Chronic lower respiratory disease (CLRD) is defined by the Centers for Disease Control and Prevention (CDC) and the World Health Organization as encompassing 4 major diseases: chronic obstructive pulmonary disease (COPD), chronic bronchitis, emphysema, and asthma.1-3 In the United States, approximately 14.8 million people have been diagnosed with COPD and more than 25 million people have asthma.4,5 According to the CDC, CLRD has resulted in 47.8 deaths per 100 000 population, making it the fourth leading cause of death in 2019.6 As a major public health issue, CLRD imposes a considerable burden on individuals, families, and societies. In 2008, the direct cost for health care expenditures related to CLRD was estimated at $53.7 billion and the indirect cost due to lost productivity was estimated at $14.3 billion.4

1 June 2021 in International Journal of Chronic Obstructive Pulmonary Disease
Verified
Journal Article
Open access
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KCKo-Yun Chang
Ko-Yun Chang
PWPi-Chu Wu
Pi-Chu Wu
CLChing-Hsiao Lee
Ching-Hsiao Lee
YLYu-Che Lee
Yu-Che Lee
HCHui-Chen Chen
Hui-Chen Chen
MWMing-Feng Wu
Ming-Feng Wu
Purpose: Little is known about the features and implications of Pseudomonas aeruginosa (PA) and Acinetobacter baumannii complex (ABC) isolates discovered in patients with chronic obstructive pulmonary disease (COPD) and community-acquired pneumonia (CAP) requiring invasive mechanical ventilation and admission to an intensive care unit. Thus, our study aimed to investigate the clinical characteristics and antimicrobial susceptibilities of PA and ABC isolates cultured from endotracheal aspirates (EAs) in such population. Patients and Methods: In this retrospective, cross-sectional study, clinical data from medical records were reviewed and collected for analysis. Results: Of the 262 participants, 17.2% (45/262), 11.5% (30/262), and 27.1% (71/262) had PA, ABC, and any of the two isolates discovered from EA cultures, respectively. Patients with PA isolates were associated with poorer lung function (the Global Initiative for Chronic Obstructive Lung Disease (GOLD) III+IV versus GOLD I+II, odds ratio (OR)=2.39, p= 0.022) and a lower body mass index (per increase of 1 kg/m2, OR= 0.93, p= 0.106) while the former was an independent predictor. Moreover, both subjects with ABC isolates and those with any of these two microorganisms were independently associated with a lower serum albumin level (per increase of 1 g/dL, OR= 0.44, p=0.009 and OR= 0.59, p=0.023, respectively). Participants with PA isolates were more likely to have failed weaning (62.2% versus 44.7%, p= 0.048) and death (28.9% versus 12.4%, p= 0.010) than those without PA isolates. The majority of the PA and ABC isolates were susceptible and resistant to all the tested antimicrobials, respectively, except that tigecycline had a reliable activity against ABC. Conclusion: Our findings provide important information to help intensivists make better treatment decisions in critically ill patients with COPD and CAP.

Verified
Journal Article
Open access
PDF file
YLYu-Che Lee
Yu-Che Lee
KCKo-Yun Chang
Ko-Yun Chang
MMMehdi Mirsaeidi
Mehdi Mirsaeidi
Background: Sarcoidosis is associated with significant morbidity and rising health care utilization, which contribute to the health care burden and disease outcome. In the United States (US), evaluation of sarcoidosis mortality by individual states has not been investigated. Methods: We examined sarcoidosis mortality data for 1999–2018 from the Centers for Disease Control and Prevention (CDC). America’s Health Rankings (AHR) assesses the nation’s health on a state-by-state basis to determine state health rankings. The numbers of certified Sarcoidosis Clinics within the US were obtained from World Association for Sarcoidosis and Other Granulomatous Disorders (WASOG) and Foundation for Sarcoidosis Research (FSR). The associations between sarcoidosis mortality and state health disparities were calculated by linear regression analyses. Results: From 1999 to 2018, the mean age-adjusted mortality rate (AAMR) in all populations, African Americans and European Americans were 2.9, 14.8, and 1.4 per 1,000,000 population, respectively. South Carolina had the highest AAMR for all populations (6.6/1,000,000) and African Americans (20.8/1,000,000). Both Utah and Vermont had the highest AAMR for European Americans (2.6/1,000,000). New York State and South Atlantic had the largest numbers of FSR-WASOG Sarcoidosis Clinics (6 and 13, respectively). States with better health rankings were significantly associated with lower AAMR in all population (R2 = 0.170, p = 0.003) but with higher AAMR in European Americans (R2 = 0.223, p < 0.001). Conclusions: There are significant variations in sarcoidosis mortality within the US. Sarcoidosis mortality was strongly associated with state health disparities. The current study suggests sarcoidosis mortality could be an indicator to reflect the state-level health care disparities in the US.