Quan Chen

Dr. Quan Chen


Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

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

Representative Publications

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1 April 2019 in Journal of the American College of Surgeons
Verified
Journal Article
Open access
TGTong Gan
Tong Gan
HSHeather F. Sinner
Heather F. Sinner
SWSamuel C. Walling
Samuel C. Walling
QCQuan Chen
Quan Chen
BHBin Huang
Bin Huang
ABAvinash S. Bhakta
Avinash S. Bhakta
Kentucky ranks first in the US in cancer incidence and mortality. Compounded by high poverty levels and a high rate of medically uninsured, cancer rates are even worse in Appalachian Kentucky. Being one of the first states to adopt the Affordable Care Act (ACA) Medicaid expansion, insurance coverage markedly increased for Kentucky residents. The purpose of our study was to determine the impact of Medicaid expansion on colorectal cancer (CRC) screening, diagnosis, and survival in Kentucky. The Kentucky Cabinet for Health and Family Services and the Kentucky Cancer Registry were queried for individuals (≥20 years old) undergoing CRC screening (per US Preventative Services Task Force) or diagnosed with primary invasive CRC from January 1, 2011 to December 31, 2016. Colorectal cancer screening rates, incidence, and survival were compared before (2011 to 2013) and after (2014 to 2016) ACA implementation. Colorectal cancer screening was performed in 930,176 individuals, and 11,441 new CRCs were diagnosed from 2011 to 2016. Screening for CRC increased substantially for Medicaid patients after ACA implementation (+230%, p < 0.001), with a higher increase in screening among the Appalachian (+44%) compared with the non-Appalachian (+22%, p < 0.01) population. The incidence of CRC increased after ACA implementation in individuals with Medicaid coverage (+6.7%, p < 0.001). Additionally, the proportion of early stage CRC (stage I/II) increased by 9.3% for Appalachians (p = 0.09), while there was little change for non-Appalachians (-1.5%, p = 0.60). Colorectal cancer survival was improved after ACA implementation (hazard ratio 0.73, p < 0.01), particularly in the Appalachian population with Medicaid coverage. Implementation of Medicaid expansion led to a significant increase in CRC screening, CRC diagnoses, and overall survival in CRC patients with Medicaid, with an even more profound impact in the Appalachian population.

26 January 2015 in Frontiers in Public Health
Verified
Journal Article
Open access
PDF file
JHJames W. Holsinger
James W. Holsinger
ALAndrea L. Lewis
Andrea L. Lewis
QCQuan Chen
Quan Chen
The professional bachelor’s degree [Bachelor of Public Health (BPH) or Bachelor of Science (BS) in Public Health] provides a cadre of trained individuals to fill entry-level positions in American public health agencies. The traditional Bachelors of Arts or Science degrees with majors in public health produce an informed citizenry, but may not provide sufficient public health course content to enable graduates of such programs to effectively enter the public health workforce. The 2003 report of the Institute of Medicine (IOM) Committee on Educating Public Health Professionals for the twenty-first century anticipated that developing broad undergraduate public health education would result in a cadre of trained individuals to enter the public health workforce as well as provide a “public health perspective” to their worksite (1). The report also called training in public health an essential part of the education of an informed citizenry. These concepts have been the underlying themes on which undergraduate public health education has developed over the last decade. As a result, Riegelman and Albertine have stated: “undergraduate public health at 4-year institutions: it is here to stay” (2). The need for additional members of the public health workforce at all levels is expected to reach 250,000 by 2020 (3, 4). These estimates, made in 2008, have been confounded by the recession of 2008–2010 and by a projected retirement eligibility rate of 29% among public health practitioners (5). To meet the required workforce projections, the graduation rate from Association of Schools and Programs of Public Health (ASPPH) schools needs to triple (3, 4). Arnold and Schneider have postulated that public health undergraduates completing their degrees and entering the workforce have the potential of relieving the pressure on graduate programs by providing entry-level practitioners (6). Although bachelor’s degree prepared individuals may help to reduce the projected shortage of public health practitioners, the variety of bachelor’s degree programs and their variability may impede these efforts. A pilot review of programs at colleges and universities with established schools of public health was conducted to determine whether there were significant differences between bachelor’s degree programs at these institutions. It should be noted that a number of the new undergraduate programs are being developed in universities without schools of public health, including liberal arts and community colleges, and such institutions may not possess the breadth and depth of faculty expertise to produce entry-level public health practitioners, although they may certainly produce graduates that meet the recommendation for producing citizens well informed concerning public health issues. As a consequence, some institutions will produce the “educated citizen” (academic), while others will educate practitioners for the public health “workforce” (professional). Undergraduate degree programs with public health majors are based on the various public health core disciplines (administration, epidemiology, biostatistics, environmental health, and health behavior) as well as general public health. These academic majors may occur as either BA or BS degrees. The BPH degree is a professional degree functioning at the undergraduate equivalent of the Masters of Public Health (MPH). The Bachelor of Science in Public Health (BSPH), although technically an academic degree, functions as the undergraduate equivalent of the Master of Science in Public Health (MSPH). In an effort to gain a better understanding of the undergraduate public health degrees currently being offered at colleges and universities with established public health programs, a general, preliminary review of the course content of university-based undergraduate public health degree programs was conducted. Owing to its ready availability, a convenience sample from the U.S. News top 25 schools of public health was utilized as the study set (7). A total of 28 institutions’ websites (3 institutions tied for the 25th place) were searched for undergraduate degree curricula containing public health content. Of the 28 schools reviewed, 17 (60.7%) offered undergraduate public health programs, with 2 institutions offering public health majors in both BA and BS degree programs. Two institutions were not considered due to offering combined undergraduate and graduate programs. A total of 19 programs from 17 schools were considered, and 3 groups of degree programs emerged: public health majors in BA degree programs, public health majors in BS degree programs, and a combination of the 5 BSPH programs and the single BPH program, the latter 2 functioning as professional degree programs. The curriculum requirements listed on the websites for each of the 19 programs were reviewed by at least two authors to determine public health content. Public health content courses included general public health courses, courses in any of the five public health core disciplines, public health practicum requirements, student research projects, and any other courses considered by the program to contain public health content. This review demonstrated that the six BA degree programs contained an average total of 120 hours of coursework with public health content consisting of an average of 34.50 semester hours or 28.8% of the total degree hours. For the majors in the seven BS degree programs, the average total degree program hours was 120.86 with public health content representing an average of 35.86 semester hours or 29.7% of the total hours. The BPH/BSPH degree programs averaged a total of 120 semester hours with 51.83 semester hours of public health content representing 43.2% of the total. Thus, the BPH/BSPH programs contained a statistically significant 47% more public health content than BA and BS degree programs with...

4 March 2019 in The Journal of Rural Health
Verified
Journal Article
Closed access
PDF file
RVRobin C. Vanderpool
Robin C. Vanderpool
BHBin Huang
Bin Huang
YDYangyang Deng
Yangyang Deng
TBTodd Bear
Todd Bear
QCQuan Chen
Quan Chen
RIRonaldo Iachan
Ronaldo Iachan

13 December 2019 in Gut
Verified
Journal Article
Closed access
PDF file
AMAju Mathew
Aju Mathew
BBBasil Baby
Basil Baby
KWKevin Wang
Kevin Wang
BSBhawna Sirohi
Bhawna Sirohi
FLFeintong Lei
Feintong Lei
BHBin Huang
Bin Huang

1 November 2018 in Obstetrics & Gynecology
Verified
Journal Article
Closed access
JNJohn R. van Nagell
John R. van Nagell
BBBrian T. Burgess
Brian T. Burgess
RMRachel W. Miller
Rachel W. Miller
LBLauren Baldwin
Lauren Baldwin
CDChristopher P. DeSimone
Christopher P. DeSimone
Edward J. PavlikEdward J. Pavlik
Edward J. Pavlik
OBJECTIVE: To estimate the effect of ultrasound screening on stage at detection and long-term disease-specific survival of at-risk women with epithelial ovarian cancer. METHODS: Eligibility included all asymptomatic women 50 years of age or older and women 25 years of age or older with a documented family history of ovarian cancer. From 1987 to 2017, 46,101 women received annual ultrasound screening in a prospective cohort trial. Women with a persisting abnormal screen underwent tumor morphology indexing, serum biomarker analysis, and surgery. RESULTS: Seventy-one invasive epithelial ovarian cancers and 17 epithelial ovarian tumors of low malignant potential were detected. No women with a low malignant potential tumor experienced recurrent disease. Stage distribution for screen-detected invasive epithelial ovarian cancers was stage I—30 (42%), stage II—15 (21%), stage III—26 (37%), and stage IV—0 (0%). Follow-up varied from 9.2 months to 27 years (mean 7.9 years). Disease-specific survival at 5, 10, and 20 years for women with invasive epithelial ovarian cancer detected by screening was 86±4%, 68±7%, and 65±7%, respectively, vs 45±2%, 31±2%, and 19±3%, respectively, for unscreened women with clinically detected ovarian cancer from the same geographic area who were treated at the same institution by the same treatment protocols ( P <.001). Twenty-seven percent of screen-detected malignancies were type I and 73% were type II. The disease-specific survival of women with type I and type II screen-detected tumors was significantly higher than that of women with clinically detected type I and type II tumors and was related directly to earlier stage at detection. CONCLUSION: Annual ultrasound screening of at-risk asymptomatic women was associated with lower stage at detection and increased 5-, 10-, and 20-year disease-specific survival of women with both type I and type II epithelial ovarian cancer. CLINICAL TRIAL REGISTRATION: OnCore Clinical Trials Management System, NCI-2013-01954.

29 September 2021 in JCO Precision Oncology
Verified
Journal Article
Open access
BHBin Huang
Bin Huang
QCQuan Chen
Quan Chen
DADerek Allison
Derek Allison
RKRiham El Khouli
Riham El Khouli
KPKeng Hee Peh
Keng Hee Peh
Jill KolesarJill Kolesar
Jill Kolesar
PURPOSE: With the introduction of precision medicine, treatment options for non–small-cell lung cancer have improved dramatically; however, underutilization, especially in disadvantaged patients, like those living in rural Appalachian regions, is associated with poorer survival. Molecular tumor boards (MTBs) represent a strategy to increase precision medicine use. UK HealthCare at the University of Kentucky (UK) implemented a statewide MTB in January 2017. We wanted to test the impact of UK MTB review on overall survival in Appalachian and other regions in Kentucky.METHODS: We performed a case-control study of Kentucky patients newly diagnosed with non–small-cell lung cancer between 2017 and 2019. Cases were reviewed by the UK MTB and were compared with controls without UK MTB review. Controls were identified from the Kentucky Cancer Registry and propensity-matched to cases. The primary end point was the association between MTB review and overall patient survival.RESULTS: Overall, 956 patients were included, with 343 (39%) residing in an Appalachian region. Seventy-seven (8.1%) were reviewed by the MTB and classified as cases. Cox regression analysis showed that poorer survival outcome was associated with lack of MTB review (hazard ratio [HR] = 8.61; 95% CI, 3.83 to 19.31; P < .0001) and living in an Appalachian region (hazard ratio = 1.43; 95% CI, 1.17 to 1.75; P = .004). Among individuals with MTB review, survival outcomes were similar regardless of whether they lived in Appalachia or other parts of Kentucky.CONCLUSION: MTB review is an independent positive predictor of overall survival regardless of residence location. MTBs may help overcome some health disparities for disadvantaged populations.