Description Usage Arguments Details Value Author(s) References
This file aims to calculate the Charlson Comorbidity index(1985 orginal version and the 2011 Quan version)
1 |
data |
Your data file in which Charlson Comorbidity index is to be calculated |
comorbidity |
A vector of all comorbidity variables |
age |
The name of the age variable |
To calculate the Charlson Comorbidity index ("cci_1987" 1987 orginal version and cci_2011 the 2011 Quan version) "cci_1987": The Charlson Comorbidity index, developed by Mary E. Charlson in 1987. "cci_2011": The Charlson Comorbidity index, updated by Hude Quan in 2011.
data: a new data.frame named "data". This data frame contains two new variables: "cci_1987" & "cci_2011"
Miao Cai <email: miao.cai@outlook.com>
Charlson, M. E., Pompei, P., Ales, K. L., & MacKenzie, C. R. (1987). A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. Journal of chronic diseases, 40(5), 373-383.
Quan, H., Sundararajan, V., Halfon, P., Fong, A., Burnand, B., Luthi, J. C., ... & Ghali, W. A. (2005). Coding algorithms for defining comorbidities in ICD-9-CM and ICD-10 administrative data. Medical care, 1130-1139.
Quan, H., Li, B., Couris, C. M., Fushimi, K., Graham, P., Hider, P., ... & Sundararajan, V. (2011). Updating and validating the Charlson comorbidity index and score for risk adjustment in hospital discharge abstracts using data from 6 countries. American journal of epidemiology, 173(6), 676-682.
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