Using negative controls to adjust for unmeasured confounding bias in time series studies
Unmeasured confounding threatens the validity of observational studies. Negative control
variables (NCs) are variables that either do not cause the outcome of interest or are not …
variables (NCs) are variables that either do not cause the outcome of interest or are not …
Measuring frailty in Medicare data: development and validation of a claims-based frailty index
Background Frailty is a key determinant of health status and outcomes of health care
interventions in older adults that is not readily measured in Medicare data. This study aimed …
interventions in older adults that is not readily measured in Medicare data. This study aimed …
Deprescribing research in nursing home residents using routinely collected healthcare data: a conceptual framework
C Thorpe, J Niznik, A Li - BMC geriatrics, 2023 - Springer
Background Efforts are needed to strengthen evidence and guidance for appropriate
deprescribing for older nursing home (NH) residents, who are disproportionately affected by …
deprescribing for older nursing home (NH) residents, who are disproportionately affected by …
Identifying the population with serious illness: the “denominator” challenge
AS Kelley, E Bollens-Lund - Journal of palliative medicine, 2018 - liebertpub.com
Background: To ensure seriously ill people and their families receive high-quality primary
and specialty palliative care services, rigorous methods are needed to prospectively identify …
and specialty palliative care services, rigorous methods are needed to prospectively identify …
Association of inappropriate outpatient pediatric antibiotic prescriptions with adverse drug events and health care expenditures
Importance Nonguideline antibiotic prescribing for the treatment of pediatric infections is
common, but the consequences of inappropriate antibiotics are not well described. Objective …
common, but the consequences of inappropriate antibiotics are not well described. Objective …
Validation of a claims-based frailty index against physical performance and adverse health outcomes in the health and retirement study
Background A claims-based frailty index (CFI) was developed based on a deficit-
accumulation approach using self-reported health information. This study aimed to …
accumulation approach using self-reported health information. This study aimed to …
Development of a claims-based frailty indicator anchored to a well-established frailty phenotype
Background: Fried and colleagues described a frailty phenotype measured in the
Cardiovascular Health Study (CHS). This phenotype is manifest when≥ 3 of the following …
Cardiovascular Health Study (CHS). This phenotype is manifest when≥ 3 of the following …
Association of frailty with 30-day outcomes for acute myocardial infarction, heart failure, and pneumonia among elderly adults
Importance The addition of a claims-based frailty metric to traditional comorbidity-based risk-
adjustment models for acute myocardial infarction (AMI), heart failure (HF), and pneumonia …
adjustment models for acute myocardial infarction (AMI), heart failure (HF), and pneumonia …
Measuring frailty in administrative claims data: comparative performance of four claims-based frailty measures in the US Medicare data
Background There has been increasing effort to measure frailty in the US Medicare data.
The performance of claims-based frailty measures has not been compared. Methods This …
The performance of claims-based frailty measures has not been compared. Methods This …
Updating and validating the US veterans affairs frailty index: transitioning from ICD-9 to ICD-10
D Cheng, C DuMontier, C Yildirim… - The Journals of …, 2021 - academic.oup.com
Abstract Background The Veterans Affairs Frailty Index (VA-FI) is an electronic frailty index
developed to measure frailty using administrative claims and electronic health records data …
developed to measure frailty using administrative claims and electronic health records data …