User profiles for Sandra Griffith

Sandra D. Griffith, PhD

Flatiron Health
Verified email at flatiron.com
Cited by 1338

A new Elixhauser-based comorbidity summary measure to predict in-hospital mortality

…, L Jehi, BP Rosenbaum, S Vadera, SD Griffith - Medical care, 2015 - journals.lww.com
Background: Recently, van Walraven developed a weighted summary score (VW) based on
the 30 comorbidities from the Elixhauser comorbidity system. One of the 30 comorbidities, …

Development and validation of a high‐quality composite real‐world mortality endpoint

MD Curtis, SD Griffith, M Tucker… - Health services …, 2018 - Wiley Online Library
Objective To create a high‐quality electronic health record ( EHR )–derived mortality
dataset for retrospective and prospective real‐world evidence generation. Data Sources/Study …

[HTML][HTML] Generating real-world tumor burden endpoints from electronic health record data: comparison of RECIST, radiology-anchored, and clinician-anchored …

SD Griffith, M Tucker, B Bowser, G Calkins, C Chang… - Advances in …, 2019 - Springer
Introduction Real-world evidence derived from electronic health records (EHRs) is increasingly
recognized as a supplement to evidence generated from traditional clinical trials. In …

Characterizing the feasibility and performance of real-world tumor progression end points and their association with overall survival in a large advanced non–small …

SD Griffith, RA Miksad, G Calkins, P You… - JCO clinical cancer …, 2019 - ascopubs.org
PURPOSE Large, generalizable real-world data can enhance traditional clinical trial results.
The current study evaluates reliability, clinical relevance, and large-scale feasibility for a …

Comparison of electronic screening for suicidal risk with the patient health questionnaire item 9 and the Columbia suicide severity rating scale in an outpatient …

…, N Milano, R Laurel, NR Thompson, SD Griffith… - Psychosomatics, 2015 - Elsevier
Background Patient-reported data can improve clinical care, including identifying patients
who are at risk for suicide. Methods In a tertiary care, psychiatric outpatient clinic, we …

Predicting quality of life outcomes after subthalamic nucleus deep brain stimulation

D Floden, SE Cooper, SD Griffith, AG Machado - Neurology, 2014 - AAN Enterprises
Objectives: To examine disease, treatment, cognitive, and psychological factors associated
with quality of life (QoL) before and after surgery and assess the ability to predict QoL …

An evaluation of the impact of missing deaths on overall survival analyses of advanced non–small cell lung cancer patients conducted in an electronic health records …

…, PP Hofmeister, P Lambert, SD Griffith… - … and drug safety, 2019 - Wiley Online Library
Purpose The aim of this study was to assess the impact of missing death data on survival
analyses conducted in an oncology EHR‐derived database. Methods The study was …

The PROMIS physical function scale: a promising scale for use in patients with ischemic stroke

IL Katzan, Y Fan, K Uchino, SD Griffith - Neurology, 2016 - AAN Enterprises
Objective: To evaluate the performance of the Patient Reported Outcomes Measurement
Information System (PROMIS) physical function (PF) scale compared to the validated Stroke …

Lumbar dorsal root Ganglia location: an anatomic and MRI assessment

…, EC Benzel, N Thompson, S Griffith… - International journal of …, 2015 - ijssurgery.com
Background The dorsal root ganglion (DRG) is a key structure in the mechanism of symptomatic
radicular pain, weakness and change in sensation. DRG localization can assist in the …

[HTML][HTML] Strongyloides stercoralis age-1: A Potential Regulator of Infective Larval Development in a Parasitic Nematode

JD Stoltzfus, HC Massey Jr, TJ Nolan, SD Griffith… - PloS one, 2012 - journals.plos.org
Infective third-stage larvae (L3i) of the human parasite Strongyloides stercoralis share many
morphological, developmental, and behavioral attributes with Caenorhabditis elegans …