Ashley Able
All of Us Program Operational Use
5 active projects
Duplicate of AFib epidemiology
Scientific Questions Being Studied
The overall goal of this study, as a Demonstration project, is to evaluate the ability of the All of Us Research Program data to replicate epidemiologic patterns of atrial fibrillation (AF), a common arrhythmia, previously described in other setting. We will address this goal with these two aims:
• Specific Aim 1. To determine the association of race and ethnicity with the prevalence and incidence of atrial fibrillation (AF). We hypothesize than non-whites will have lower prevalence and incidence of AF than whites.
• Specific Aim 2. To estimate associations of established risk factors for AF with the prevalence and incidence of AF. We hypothesize that increased body mass index, higher blood pressure, diabetes, smoking and a prior history of cardiovascular diseases will be associated with increased prevalence and incidence of AF.
Project Purpose(s)
- Population Health
- Other Purpose (This work is a result of an All of Us Research Program Demonstration Project. The projects are efforts by the Program designed to meet the program's goal of ensuring the quality and utility of the Research Hub as a resource for accelerating discovery in science and medicine. This work was reviewed and overseen by the All of Us Research Program Science Committee and the Data and Research Center to ensure compliance with program policy, including policies for acceptable data access and use.)
Scientific Approaches
We will select all All of Us participants who self-reported sex at birth male or female, whose self-reported race was white, black or Asian, as well as those who self-reported being Hispanics.
Atrial fibrillation (AF) will be identified from self-reports in the medical survey or from electronic health records (EHR).
Clinical factors will be identified from EHR and study measurements (blood pressure, weight, height).
We will evaluate the association of demographic (age, sex, race/ethnicity) and clinical (body mass index, blood pressure, smoking, cardiovascular diseases) factors with prevalence of self-reported AF and prevalence of AF in the EHR, as well as incident AF ascertained from the EHR.
Anticipated Findings
The overall goal of this project is to evaluate the prevalence and incidence of atrial fibrillation (AF), overall and by race/ethnicity, as well as to confirm the association of established risk factors for AF in the All of Us Research participants. We expect to confirm associations between demographic and clinical variables previously reported in the literature, demonstrating the value of the All of Us Research Program data to address questions regarding this common cardiovascular disease.
Demographic Categories of Interest
- Race / Ethnicity
- Age
Data Set Used
Registered TierResearch Team
Owner:
- Jun Qian - Other, All of Us Program Operational Use
- Ashley Able - Other, All of Us Program Operational Use
- Alvaro Alonso - Late Career Tenured Researcher, Emory University
Systemic Disease and Glaucoma (Cloned)
Scientific Questions Being Studied
We have previously published a predictive model of glaucoma progression using electronic health record (EHR) data pertaining to systemic attributes from a single institution. We aim to use the All of Us dataset to 1) serve as external validation for this single-center model and 2) to train new models focused on predicting glaucoma progression using systemic predictors. This is important to understand whether the original findings are generalizable and provide additional knowledge about the utility of systemic predictors on a national-level dataset.
Project Purpose(s)
- Disease Focused Research (Primary open angle glaucoma)
- Other Purpose (This work is the result of an All of Us Research Program Demonstration Project. Demonstration Projects are efforts by the All of Us Research Program designed to meet the goal of ensuring the quality and utility of the Research Hub as a resource for accelerating precision medicine. This work has been approved, reviewed, and overseen by the All of Us Research Program Science Committee and Data and Research Center to ensure compliance with program policy. )
Scientific Approaches
We plan to primarily work with EHR data contained in All of Us for a cohort of adult participants diagnosed with primary open-angle glaucoma. We will extract data on systemic conditions and medications for this cohort, as well as physical measurements and vital signs. We will clean the data such that the format is consistent with the data from our previously published model. Then, we will use this data as an external validation of a logistic regression model derived from our prior study that was based at a single academic center. Next, we will use All of Us data to train a new set of models, using techniques such as logistic regression, random forests, and artificial neural networks. We will optimize these models using feature selection methods and class balancing procedures. By evaluating performance metrics such as area under the curve (AUC), precision, recall, and accuracy, we will assess whether we can achieve superior predictive performance when training models using All of Us.
Anticipated Findings
We anticipate that the All of Us data will validate the findings from the model, which demonstrated that blood pressure-related metrics and certain medication classes had predictive value for glaucoma progression. In addition, we anticipate that the models trained with All of Us data will outperform the model trained with single institution data due to larger sample size and greater diversity. These findings will support further investigation in understanding the relationship between systemic conditions like blood pressure with glaucoma progression.
Demographic Categories of Interest
This study will not center on underrepresented populations.
Data Set Used
Registered TierResearch Team
Owner:
- Tsung-Ting Kuo - Early Career Tenure-track Researcher, University of California, San Diego
- Sally Baxter - Research Fellow, University of California, San Diego
- Roxana Loperena Cortes - Other, All of Us Program Operational Use
- Francis Ratsimbazafy - Other, All of Us Program Operational Use
- Paulina Paul - Project Personnel, University of California, San Diego
- Melissa Patrick - Project Personnel, All of Us Program Operational Use
- Lucila Ohno-Machado
- Luca Bonomi - Project Personnel, Vanderbilt University Medical Center
- Kelsey Mayo - Other, All of Us Program Operational Use
- Jihoon Kim - Project Personnel, University of California, San Diego
- Bharanidharan Radha Saseendrakumar - Project Personnel, University of California, San Diego
- Ashley Able - Other, All of Us Program Operational Use
Collaborators:
- Chenjie Zeng - Research Fellow, National Institutes of Health (NIH)
Duplicate of Cancer
Scientific Questions Being Studied
We intend to explore the difference in the prevalence of cancer between the AoU population. In particular, we will be looking at the difference between the entire population, the subset with medical records, and the subset with self-reported data.
Project Purpose(s)
- Population Health
Scientific Approaches
We intend to select a list of SNOMED codes corresponding to primary cancers to get the subset with cancer in the medical record
We intend to select the survey question asking about self-reported cancer to get the subset with self-reported cancer
Anticipated Findings
We expect the difference of cancer to vary between self-report and medical record, which could have implications for how cancer is measured on a population-level.
Demographic Categories of Interest
This study will not center on underrepresented populations.
Data Set Used
Registered TierResearch Team
Owner:
- Sameep Shah - Project Personnel, University of Chicago
- Francis Ratsimbazafy - Other, All of Us Program Operational Use
- Ashley Able - Other, All of Us Program Operational Use
Collaborators:
- Jun Qian - Other, All of Us Program Operational Use
Duplicate of D014 - Opioids
Scientific Questions Being Studied
As a demonstration project, this study will present the results of prevalence of opioid use in the United States. Specific questions include:
1. What is the prevalence of prescription opioids received from healthcare systems?
2. What is the prevalence of opioids misuse including nonmedical prescription opioids use and street opioid use?
3. Data in both previous questions will also be stratified by geographic region
Project Purpose(s)
- Other Purpose (This work is a result of an All of Us Research Program Demonstration Project. The projects are efforts by the Program designed to meet the program's goal of ensuring the quality and utility of the Research Hub as a resource for accelerating discovery in science and medicine. This work was reviewed and overseen by the All of Us Research Program Science Committee and the Data and Research Center to ensure compliance with program policy, including policies for acceptable data access and use.)
Scientific Approaches
We will identify prevalence of opioid use in two ways and stratified by state.
First, we use EHR Drug Exposures to capture use of prescription opioid.
Second, we use lifestyle survey questionnaire to capture substance use reported by patients themselves:
1. In your LIFETIME, which of the following substances have you ever used?
2. In the PAST THREE MONTHS, how often have you used this substance?
The prevalence will be stratified by state, therefore EHR Observation Table will be used to capture this information.
Anticipated Findings
For this study, we anticipate that we will be able to replicate previous national studies of estimating prevalence of opioids. All of Us workbench research data also provides an alternative tool for assessing prevalence rate of substance use and prescription opioids for US population.
Demographic Categories of Interest
This study will not center on underrepresented populations.
Data Set Used
Registered TierResearch Team
Owner:
- Hsueh-Han Yeh - Research Associate, Henry Ford Health System
- Jun Qian - Other, All of Us Program Operational Use
- Ashley Able - Other, All of Us Program Operational Use
D16_HTN_revision_after_code_review
Scientific Questions Being Studied
We are using the All of Us Researcher Workbench interface to answer the question, "Is hypertension prevalence in the All of Us Research Program similar to hypertension prevalence in the 2015–2016 National Health and Nutrition Examination Survey (NHANES) ?". Clinical approaches to understanding and treating hypertension may benefit from the integration of a precision medicine approach that integrates data on environments, social determinants of health, behaviors, and genomic factors that contribute to hypertension risk. Hypertension is a major public health concern and remains a leading risk factor for stroke and cardiovascular disease.
Project Purpose(s)
- Other Purpose (This work is an AoU demo project. Demo projects are efforts by the AoU Research Program designed to meet the program goal of ensuring the quality and utility of the Research Hub as a resource for accelerating discovery in science and medicine. As an approved demo project, this work was reviewed and overseen by the AoU Research Program Science Committee and the AoU Data and Research Center to ensure compliance with program policy, including policies for acceptable data access and use. )
Scientific Approaches
In this cross-sectional, population-based study, we used All of Us baseline data from patient (age>18) provided information (PPI) surveys and electronic health record (EHR) blood pressure measurements and retrospectively examined the prevalence of hypertension in the EHR cohort using Systemized Nomenclature of Medicine (SNOMED codes and blood pressure medications recorded in the EHR. We used the EHR data (SNOMED codes on 2 distinct dates and at least one hypertension medication) as the primary definition, and then add subjects with elevated systolic or elevated diastolic blood pressure on measurements 2 and 3 from PPI. We extracted each participant’s detailed dates of SNOMED code for essential hypertension from the Researcher Workbench table ‘cb_search_all_events’. We calculated an age-standardized HTN prevalence according to the age distribution of the U.S. Census, using 3 groups (18-39, 40-59, ≥ 60).
Anticipated Findings
The prevalence of hypertension in the All of Us cohort is similar to that of published literature. All of Us age-adjusted HTN prevalence was 27.9% compared to 29.6% in National Health and Nutrition Examination Survey. The All of Us cohort is a growing source of diverse longitudinal data that can be utilized to study hypertension nationwide. The prevalence of hypertension varies in the United States (U.S.) by age, sex, and socioeconomic status. Hypertension can often be treated successfully with medication, and prevented or delayed with lifestyle modifications. Even with these established hypertension intervention and prevention strategies, the prevalence of hypertension continues to be at levels of public health concern. The diversity within All of Us may provide insight into factors relevant to hypertension prevention and treatments in a variety of social and geographic contexts and population strata in the U.S.
Demographic Categories of Interest
This study will not center on underrepresented populations.
Data Set Used
Registered TierResearch Team
Owner:
- Paulette Chandler - Senior Researcher, Mass General Brigham
- Guohai Zhou - Other, Mass General Brigham
- Ashley Able - Other, All of Us Program Operational Use
Collaborators:
- Roxana Loperena Cortes - Other, All of Us Program Operational Use
- Elizabeth Karlson - Late Career Tenured Researcher, Mass General Brigham
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