Publications by authors named "Schmittdiel J"

Background: Most patient variables that impact cancer case complexity and outcomes are not modifiable preoperatively; however, the time from diagnosis to surgical resection is fluid. This retrospective study sought to identify the optimal interval from diagnosis of non-small cell lung cancer (NSCLC) to surgery to reduce mortality.

Methods: We evaluated adult patients with early-stage NSCLC who underwent upfront surgical resection between 2009 and 2019 using institutional data.

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Background: Broad-scale, rapid health care change is critically needed to improve value-based, effective health care. Health care providers and systems need to address common barriers and facilitators across the evidence to implementation pathway, across diverse specialties. However, most evidence translation / implementation research evaluates single topic areas, and may be of limited value for informing comprehensive efforts.

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Background And Aims: Studies show decreased rates of poor outcomes after hepatitis C virus (HCV) cure. However, there are no data comparing risk of poor outcomes to that of HCV never infected; results that could have implications for those who may not need ongoing specialty follow-up after cure.

Methods: Retrospective cohort study conducted among Kaiser Permanente Northern California adults ages 18 and up between 2002 and 2019.

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Objective: We assessed factors associated with engagement in lifestyle wellness programs for patients with prediabetes.

Methods: This mixed-methods study, conducted between March 2018 and April of 2021, combined a retrospective cohort study and semi-structured interviews in a Northern California cohort of patients from a randomized controlled pragmatic clinical trial aged 18-75 with body mass index 25 and at least one HbA1c between 5.7-6.

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Article Synopsis
  • Dyadic peer support can help patients improve their health behaviors, but matching peers based on demographic traits like race or gender might not be crucial for success.
  • A study involving 177 peers and 69 supporters showed no significant link between demographic concordance and various health outcomes like weight change or diabetes-related education participation.
  • Participant feedback highlighted that the ability of supporters to communicate empathy and non-judgment was more important than shared demographics, suggesting that training in effective communication should be prioritized in peer support programs.
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Importance: In the US, hepatocellular carcinoma (HCC) has been the most rapidly increasing cancer since 1980, and metabolic dysfunction-associated steatotic liver disease (MASLD) is expected to soon become the leading cause of HCC.

Objective: To develop a prediction model for HCC incidence in a cohort of patients with MASLD.

Design, Setting, And Participants: This prognostic study was conducted among patients aged at least 18 years with MASLD, identified using diagnosis of MASLD using International Classification of Diseases, Ninth Revision (ICD-9) or International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10) diagnosis codes; natural language processing of radiology imaging report text, which identified patients who had imaging evidence of MASLD but had not been formally diagnosed; or the Dallas Steatosis Index, a risk equation that identifies individuals likely to have MASLD with good precision.

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Article Synopsis
  • Sodium-Glucose Cotransporter 2 Inhibitors (SGLT2i) and Glucagon-Like Peptide-1 Receptor Agonists (GLP-1 RA) are beneficial for cardiovascular and kidney health in type 2 diabetes patients, and equitable use can help reduce racial and ethnic health disparities.
  • A study analyzed data from over 687,000 patients from 2014 to 2022 to assess the dispensing trends of SGLT2i and GLP-1 RA among different racial and ethnic groups.
  • Results indicated that minority groups, including American Indian/Alaska Native, Black, and Hispanic patients, received these medications less frequently compared to White patients, highlighting the need for
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Background: Few studies have evaluated the risk of cancer among older patients with stable adnexal masses in community-based settings to determine the duration of observation time needed.

Objective: This study aimed to assess the ovarian cancer risk among older patients with stable adnexal masses on ultrasound.

Study Design: This was a retrospective cohort study of patients in a large community-based health system aged ≥50 years with an adnexal mass <10 cm on ultrasound between 2016 and 2020 who had at least 1 follow-up ultrasound performed ≥6 weeks after initial ultrasound.

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Objective: To determine the live born prenatal detection rate of significant congenital heart disease (CHD) in a large, integrated, multi-center community-based health system using a strategy of referral only of patients with significant cardiac abnormalities on obstetrical screening ultrasound for fetal echocardiography. Detection rates were assessed for screening in both radiology and maternal fetal medicine (MFM). The impact on fetal echocardiography utilization was also assessed.

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Background: Outpatient family-based treatment (FBT) is effective in treating restrictive eating disorders among adolescents. However, little is known about whether FBT reduces higher level of care (HLOC) utilization or if utilization of HLOC is associated with patient characteristics. This study examined associations between utilization of eating disorder related care (HLOC and outpatient treatment) and reported adherence to FBT and patient characteristics in a large integrated health system.

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Introduction: Learning health systems require a workforce of researchers trained in the methods of identifying and overcoming barriers to effective, evidence-based care. Most existing postdoctoral training programs, such as NIH-funded postdoctoral T32 awards, support basic and epidemiological science with very limited focus on rigorous delivery science methods for improving care. In this report, we present the 10-year experience of developing and implementing a Delivery Science postdoctoral fellowship embedded within an integrated health care delivery system.

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Background: Population-level tracking of hospital use patterns with integrated care organizations in patients experiencing homelessness has been difficult. A California law implemented in 2019 (Senate Bill 1152) aimed to ensure safety for this population after discharge from the hospital by requiring additional documentation for patients experiencing homelessness, which provides an opportunity to evaluate hospital use by this population.

Methods: In a large integrated health system in California, patients experiencing homelessness were identified through documentation change requirements associated with this law and compared with a matched group from the general population.

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Introduction Homelessness contributes to worsening health and increased health care costs. There is little published research that leverages rich electronic health record (EHR) data to predict future homelessness risk and inform interventions to address it. The authors' objective was to develop a model for predicting future homelessness using individual EHR and geographic data covariates.

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Introduction: High-contact structured diabetes prevention programs are effective in lowering weight and HbA1cs, yet their intensity level can create barriers to participation. Peer support programs improve clinical outcomes among adults with Type 2 diabetes, but their effectiveness in diabetes prevention is unknown. This study examined whether a low-intensity peer support program improved outcomes more than enhanced usual care in a diverse population with prediabetes.

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The ronarus isease 20 (COVID-19) pandemic has resulted in significant lifestyle changes due to shelter-in-place confinement orders. The study's purpose was to assess if the COVID-19 pandemic affected self-reported diabetes prevention behaviors among American adults with prediabetes. As part of a randomized clinical trial among adults with prediabetes and overweight/obesity, questions were added to existing study surveys to assess the effect of the COVID-19 pandemic on diabetes prevention behaviors and stress.

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Background: Optimal time to surgery for lung cancer is not well established. We aimed to assess whether time to surgery correlates with outcomes.

Methods: We assessed patients 18-84 years old who were diagnosed with stage I/II lung cancer at our integrated healthcare system from 2009 to 2019.

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Objective Eating disorders typically onset in preadolescence and adolescence and cause negative mental and physical health sequelae over the life span. This study examined the incidence and medical hospitalization rates of pediatric eating disorders in an integrated health system in the United States. Methods This retrospective cohort study examined 4883 Kaiser Permanente Northern California members 8-18 years of age with an eating disorder diagnosis from January 2015 to June 2019.

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Introduction The objective of this study was to identify and operationalize measures of potential housing insecurity within existing electronic health record data and to quantify the association between address changes and diabetes management goals among patients with type 2 diabetes. Methods We conducted a retrospective cohort study to measure potential housing insecurity in electronic health record data by quantifying the number of address changes in 2018. We considered at least one address change as a potential marker for housing insecurity.

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Psychosocial factors such as self-efficacy may be important in helping high-risk adults prevent diabetes. We aimed to describe psychosocial and diabetes risk factors in adults with prediabetes and evaluate if these varied by demographic characteristics. Cross-sectional data came from baseline surveys and electronic health records (2018-2021) of adults with prediabetes enrolled in a randomized study of peer support for diabetes prevention at Kaiser Permanente Northern California and Michigan Medicine.

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