Review of methods used to measure comorbidity in cancer populations: no gold standard exists
D Sarfati - Journal of clinical epidemiology, 2012 - Elsevier
OBJECTIVE: This article reviews methods used to measure comorbidity in the context of
cancer; summarizing methods, identifying contexts in which they have been used, and …
cancer; summarizing methods, identifying contexts in which they have been used, and …
Cancer-specific administrative data–based comorbidity indices provided valid alternative to Charlson and National Cancer Institute Indices
Objective We aimed to develop and validate administrative data–based comorbidity indices
for a range of cancer types that included all relevant concomitant conditions. Study Design …
for a range of cancer types that included all relevant concomitant conditions. Study Design …
A refined comorbidity measurement algorithm for claims-based studies of breast, prostate, colorectal, and lung cancer patients
CN Klabunde, JM Legler, JL Warren, LM Baldwin… - Annals of …, 2007 - Elsevier
PURPOSE: We evaluated (i) how combining comorbid conditions identified from Medicare
inpatient or physician claims into a single comorbidity index compared with three other …
inpatient or physician claims into a single comorbidity index compared with three other …
The Charlson Comorbidity Index: problems with use in epidemiological research
A Drosdowsky, K Gough - Journal of clinical epidemiology, 2022 - Elsevier
Abstract The Charlson Comorbidity Index (CCI) is a highly cited and well established tool for
measuring comorbidity in clinical research, but there are problems with its use in practice …
measuring comorbidity in clinical research, but there are problems with its use in practice …
Interrater reliability of measurements of comorbid illness should be reported
OBJECTIVE: Comorbidity indices are commonly used to stratify patients to control for
treatment selection bias. The objectives here were to review the reporting of interrater …
treatment selection bias. The objectives here were to review the reporting of interrater …
Prognostic importance of comorbidity in a hospital-based cancer registry
JF Piccirillo, RM Tierney, I Costas, L Grove… - Jama, 2004 - jamanetwork.com
ContextPatients with cancer often have other medical ailments, referred to as comorbidity.
Comorbidity may impact treatment decision-making, prognosis, and quality of care …
Comorbidity may impact treatment decision-making, prognosis, and quality of care …
Cancer and comorbidity: redefining chronic diseases
KS Ogle, GM Swanson, N Woods, F Azzouz - Cancer, 2000 - Wiley Online Library
BACKGROUND A narrow subspecialty model of cancer care has led to cancer treatment
often being given outside the full medical context of the patient. The full range of comorbid …
often being given outside the full medical context of the patient. The full range of comorbid …
Comorbidity index in central cancer registries: the value of hospital discharge data
DY Lichtensztajn, BM Giddings, CR Morris… - Clinical …, 2017 - Taylor & Francis
Background The presence of comorbid medical conditions can significantly affect a cancer
patient's treatment options, quality of life, and survival. However, these important data are …
patient's treatment options, quality of life, and survival. However, these important data are …
Identifying important comorbidity among cancer populations using administrative data: prevalence and impact on survival
Aims Our study sought to optimize the identification and investigate the impact of comorbidity
in cancer patients using routinely collected hospitalization data. Methods We undertook an …
in cancer patients using routinely collected hospitalization data. Methods We undertook an …
The impact of patient comorbidity on cancer stage at diagnosis
Background: It is known that cancer stage is affected by comorbidity, but the evidence
regarding the magnitude and even direction of this effect is highly inconsistent and poorly …
regarding the magnitude and even direction of this effect is highly inconsistent and poorly …