Xiaowei Yan

Dr. Xiaowei Yan


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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7 November 2022 in Scientific Reports
Verified
Journal Article
Open access
PDF file
XYXiaowei Yan
Xiaowei Yan
SMSatish Mudiganti
Satish Mudiganti
HHHannah Husby
Hannah Husby
AHAndrew Hudnut
Andrew Hudnut
MGMadina Gbotoe
Madina Gbotoe
JJJ. B. Jones
J. B. Jones
Poorly controlled cardiometabolic biometric health gap measures [e.g.,uncontrolled blood pressure (BP), HbA1c, and low-density lipoprotein cholesterol (LDL-C)] are mediated by medication adherence and clinician-level therapeutic inertia (TI). The study of comparing relative contribution of these two factors to disease control is lacking. We conducted a retrospective cohort study using 7 years of longitudinal electronic health records (EHR) from primary care cardiometabolic patients who were 35 years or older. Cox-regression modeling was applied to estimate how baseline proportion of days covered (PDC) and TI were associated with cardiometabolic related health gap closure. 92,766 patients were included in the analysis, among which 89.9%, 85.8%, and 73.3% closed a BP, HbA1c, or LDL-C gap, respectively, with median days to gap closure ranging from 223 to 408 days. Patients who did not retrieve a medication were the least likely to achieve biometric control, particularly for LDL-C (HR = 0.58, 95% CI: 0.55–0.60). TI or uncertainty of TI was associated with a high risk of health gap persistence, particularly for LDL-C (HR ranges 0.46–0.48). Both poor medication adherence and TI are independently associated with persistent health gaps, and TI has a much higher impact on disease control compared to medication adherence, implying disease management strategies should prioritize reducing TI.

1 March 2024 in JAMA Health Forum
Verified
Journal Article
Open access
PDF file
ZWZachary Wagner
Zachary Wagner
AKAllison Kirkegaard
Allison Kirkegaard
LMLouis T. Mariano
Louis T. Mariano
JDJason N. Doctor
Jason N. Doctor
XYXiaowei Yan
Xiaowei Yan
KWKatherine E. Watkins
Katherine E. Watkins
Importance: Excess opioid prescribing after surgery can result in prolonged use and diversion. Email feedback based on social norms may reduce the number of pills prescribed.Objective: To assess the effectiveness of 2 social norm-based interventions on reducing guideline-discordant opioid prescribing after surgery.Design, Setting, and Participants: This cluster randomized clinical trial conducted at a large health care delivery system in northern California between October 2021 and October 2022 included general, obstetric/gynecologic, and orthopedic surgeons with patients aged 18 years or older discharged to home with an oral opioid prescription.Interventions: In 19 hospitals, 3 surgical specialties (general, orthopedic, and obstetric/gynecologic) were randomly assigned to a control group or 1 of 2 interventions. The guidelines intervention provided email feedback to surgeons on opioid prescribing relative to institutionally endorsed guidelines; the peer comparison intervention provided email feedback on opioid prescribing relative to that of peer surgeons. Emails were sent to surgeons with at least 2 guideline-discordant prescriptions in the previous month. The control group had no intervention.Main Outcome and Measures: The probability that a discharged patient was prescribed a quantity of opioids above the guideline for the respective procedure during the 12 intervention months.Results: There were 38 235 patients discharged from 640 surgeons during the 12-month intervention period. Control-group surgeons prescribed above guidelines 36.8% of the time during the intervention period compared with 27.5% and 25.4% among surgeons in the peer comparison and guidelines arms, respectively. In adjusted models, the peer comparison intervention reduced guideline-discordant prescribing by 5.8 percentage points (95% CI, −10.5 to −1.1; P = .03) and the guidelines intervention reduced it by 4.7 percentage points (95% CI, −9.4 to −0.1; P = .05). Effects were driven by surgeons who performed more surgeries and had more guideline-discordant prescribing at baseline. There was no significant difference between interventions.Conclusions and Relevance: In this cluster randomized clinical trial, email feedback based on either guidelines or peer comparison reduced opioid prescribing after surgery. Guideline-based feedback was as effective as peer comparison-based feedback. These interventions are simple, low-cost, and scalable, and may reduce downstream opioid misuse.Trial Registration: ClinicalTrials.gov NCT05070338

25 January 2024 in Clinical and Translational Gastroenterology
Verified
Journal Article
Open access
SLSu-Ying Liang
Su-Ying Liang
BOBrandon Oscarson
Brandon Oscarson
PKPragati Kenkare
Pragati Kenkare
XYXiaowei Yan
Xiaowei Yan
SMSatish Mudiganti
Satish Mudiganti
EHEdward S. Huang
Edward S. Huang
INTRODUCTION: Adenoma detection rate (ADR) is an accepted benchmark for screening colonoscopy. Factors driving ADR and its relationship with sessile serrated lesions detection rate (SSLDR) over time remain unclear. We aim to explore patient, physician, and procedural influences on ADR and SSLDR trends. METHODS: Using a large healthcare system in northern California from January 2010 to December 2020, a total of 146,818 screening colonoscopies performed by 33 endoscopists were included. ADR and SSLDR were calculated over time using natural language processing. Logistic regression was used to calculate the odd ratios of patient demographics, physician attributes, and procedural details over time. RESULTS: Between 2010 and 2020, ADR rose from 19.4% to 44.4%, whereas SSLDR increased from 1.6% to 11.6%. ADR increased by 2.7% per year (95% confidence interval 1.9%–3.4%), and SSLDR increased by 1.0% per year (95% confidence interval 0.8%–1.2%). Higher ADR was associated with older age, male sex, higher body mass index, current smoker, higher comorbidities, and high-risk colonoscopy. By contrast, SSLDR was associated with younger age, female sex, white race, and fewer comorbidities. Patient and procedure characteristics did not significantly change over time (P-interaction >0.05). Longer years in practice and male physician were associated with lower ADR and SSLDR in 2010, but significantly attenuated over time (P-interaction <0.05). DISCUSSION: Both ADR and SSLDR have increased over time. Patient and procedure factors did not significantly change over time. Male endoscopist and longer years in practice had lower initial ADR and SSLDR, but significantly lessened over time.

8 August 2022 in Population Health Management
Verified
Journal Article
Closed access
XYXiaowei Yan
Xiaowei Yan
CSCheryl D. Stults
Cheryl D. Stults
SDSien Deng
Sien Deng
SLSu-Ying Liang
Su-Ying Liang
EDEllis Dillon
Ellis Dillon
DFDominick L. Frosch
Dominick L. Frosch
Many studies have assessed the factors associated with overall video visit use during the COVID-19 pandemic, but little is known about who is most likely to continue to use video visits and why. The authors combined a survey with electronic health record data to identify factors affecting the continued use of video visit. In August 2020, a stratified random sample of 20,000 active patients from a large health care system were invited to complete an email survey on health care seeking preferences during the COVID. Weighted logistic regression models were applied, adjusting for sampling frame and response bias, to identify factors associated with video visit experience, and separately for preference of continued use of video visits. Actual video visit utilization was also estimated within 12 months after the survey. Three thousand three hundred fifty-one (17.2%) patients completed the survey. Of these, 1208 (36%) reported having at least 1 video visit in the past, lowest for African American (33%) and highest for Hispanic (41%). Of these, 38% would prefer a video visit in the future. The strongest predictors of future video visit use were comfort using video interactions (odds ratio [OR] = 5.30, 95% confidence interval [95% CI]: 3.57–7.85) and satisfaction with the overall quality (OR = 3.94, 95% CI: 2.66–5.86). Interestingly, despite a significantly higher satisfaction for Hispanic (40%–55%) and African American (40%–50%) compared with Asian (29%–39%), Hispanic (OR = 0.46, 95% CI: 0.12–0.88) and African American (OR = 0.54, 95% CI: 0.16–0.90) were less likely to prefer a future video visit. Disparity exists in the use of video visit. The association between patient satisfaction and continued video visit varies by race/ethnicity, which may change the future long-term video visit use among race/ethnicity groups.

31 December 2021 in Healthcare
Verified
Journal Article
Open access
PDF file
XYXiaowei Yan
Xiaowei Yan
Walter StewartWalter Stewart
Walter Stewart
HHHannah Husby
Hannah Husby
JDJake Delatorre-Reimer
Jake Delatorre-Reimer
SMSatish Mudiganti
Satish Mudiganti
James B. JonesJames B. Jones
James B. Jones
The objective of this study was to determine the strengths and limitations of using structured electronic health records (EHR) to identify and manage cardiometabolic (CM) health gaps. We used medication adherence measures derived from dispense data to attribute related therapeutic care gaps (i.e., no action to close health gaps) to patient- (i.e., failure to retrieve medication or low adherence) or clinician-related (i.e., failure to initiate/titrate medication) behavior. We illustrated how such data can be used to manage health and care gaps for blood pressure (BP), low-density lipoprotein cholesterol (LDL-C), and HbA1c for 240,582 Sutter Health primary care patients. Prevalence of health gaps was 44% for patients with hypertension, 33% with hyperlipidemia, and 57% with diabetes. Failure to retrieve medication was common; this patient-related care gap was highly associated with health gaps (odds ratios (OR): 1.23–1.76). Clinician-related therapeutic care gaps were common (16% for hypertension, and 40% and 27% for hyperlipidemia and diabetes, respectively), and strongly related to health gaps for hyperlipidemia (OR = 5.8; 95% CI: 5.6–6.0) and diabetes (OR = 5.7; 95% CI: 5.4–6.0). Additionally, a substantial minority of care gaps (9% to 21%) were uncertain, meaning we lacked evidence to attribute the gap to either patients or clinicians, hindering efforts to close the gaps.

9 June 2025 in American Journal of Preventive Cardiology
Verified
Journal Article
Open access
JLJiang Li
Jiang Li
SMSatish Mudiganti
Satish Mudiganti
HHHannah Husby
Hannah Husby
JJJ B Jones
J B Jones
XYXiaowei Yan
Xiaowei Yan
Statin use is proven to be effective in lowering low-density lipoprotein cholesterol (LDL-C) levels and reducing risk of recurrent myocardial infarction, stroke, and mortality in individuals with established cardiovascular disease (CVD). We used medication dispensed data (e.g., SureScripts), which has been integrated with the electronic health record (EHR) to examine the factors and outcomes associated with adherence to statins. This study is a secondary data analysis using longitudinal data between 1/1/2010–10/31/2021 (n = 1486,286 over nearly 12 years) from a large community-based health system on all primary care patients aged 35 years or older when diagnosed with the first CVD two years after their first primary care visit and had new statin prescriptions on or after CVD diagnosis. Multivariable logistic regression models were used to identify the factors associated with filling the prescription and statin adherence, respectively. Survival analysis was used to assess the association between statin adherence and LDL-C control. Of the 5155 patients with newly prescribed statins, a total of 3553 (68.9 %) were adherent, with insurance type, online patient portal use, race, age, statin intensity, and cardiologist visits emerging as significant predictors. Specifically, patients with PPO/FFS were less likely to fill statin prescriptions compared to those with HMO. Infrequent online patient portal use is associated with lower adherence. There is a disparity between patients race categories (Non-Hispanic Black (NHB) vs. Non-Hispanic White (NHW)) in filling the prescription and adhering to the filled prescription. Medication adherence is defined as proportion of days covered (PDC) of 80 % or greater. Adherence was positively associated with older age, high-intensity statins, and cardiologist visits. Having a visit with a cardiologist showed better adherence to the prescription and lowering of LDL values. Additionally, adhering to statins has shown a better outcome of lowering patients LDL values. The findings emphasize demographic and healthcare factors in medication adherence and LDL control, suggesting tailored interventions for diverse populations, addressing disparities in insurance type, race, and online portal use, and involving cardiologists in medication management for improved medication adherence and clinical outcomes.