Claims-based frailty index (CFI) estimates a deficit-accumulation frailty index using International Classification of Diseases (ICD) diagnosis codes, Current Procedural Terminology (CPT) codes, and Healthcare Common Procedure Coding System (HCPCS) codes in the prior 12 months in administrative claims data.


Please refer to "Research Background - Claims-Based Frailty Index" file within each sub-dataverse for interpretation, validation data against clinical measures and health outcomes, and annotated references. Refer to "Frailty Index Code Guide" file to implement CFI algorithms in different statistical softwares and programming languages.

The original SAS program was developed and validated by Dr. Kim and his team at the Brigham and Women's Hospital Division of Pharmacoepidemiology and Pharmacoeconomics, supported by National Institute on Aging (grants K08 AG051187 and R01 AG062713). Programs in Stata, R, Python, and Java were developed by Westat and VillageMD and are based on the original SAS program.

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31 to 40 of 47 Results
CFI_Model.R
Jun 21, 2021 - R Program - Claims-Based Frailty Index
R Syntax - 4.1 KB - MD5: 7d7c26d0c66bbe69c5ecf65574a4140f
disease_weight.txt
Jun 21, 2021 - R Program - Claims-Based Frailty Index
Plain Text - 1.1 KB - MD5: 9976bc84c669f021fb7e50e56f0b6b56
dx09.txt
Jun 21, 2021 - R Program - Claims-Based Frailty Index
Plain Text - 3.2 MB - MD5: 882a48f1fc821ed202c4ea6f62bd0401
dx10.txt
Jun 21, 2021 - R Program - Claims-Based Frailty Index
Plain Text - 5.1 MB - MD5: 7e747d123f4b29449f3172c7d87cf2b7
ids.txt
Jun 21, 2021 - R Program - Claims-Based Frailty Index
Plain Text - 241.2 KB - MD5: 20bab00c2ab35720f674b4a8af7ba321
pxlookup.txt
Jun 21, 2021 - R Program - Claims-Based Frailty Index
Plain Text - 2.4 KB - MD5: 066d95d401cc5a56ec512061007c541c
px.txt
Jun 21, 2021 - R Program - Claims-Based Frailty Index
Plain Text - 8.5 MB - MD5: de0fd6127f21e32aec0b98237e5aea80
Frailty-Index-SAS-code-Guide 22May2021.docx
Jun 17, 2021 - SAS Programs - Claims-Based Frailty Index
MS Word - 19.0 KB - MD5: 36c9281acb87e05ec8ff06572979c080
CFI_ICD10CM_V2020.tab
May 25, 2021 - SAS Programs - Claims-Based Frailty Index
Tabular Data - 2.0 MB - 4 Variables, 27621 Observations - UNF:6:61zPcw/pRbSxAuT7FEV5RQ==
CFI_ICD9CM_V32.tab
May 25, 2021 - SAS Programs - Claims-Based Frailty Index
Tabular Data - 322.3 KB - 4 Variables, 6960 Observations - UNF:6:e6GRaSXKB8J5tRGj+CNPpg==
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