Hi all,
I'm using the medical risk package to determine the risk stratification Index
based on the ICD9 codes. Although, I have been successful in using it, I'm
unable to interpret the output.
here is the sample code
# Calculate RSI for each patient ("id") in dataframe
cases <- data.frame(id=c(1,1,1,2,2,2,2,2),
+
icd9cm=c("D4019","D25000","DV707","D71945","DV4365","D78079","D70909","D1958"))
library(plyr)
ddply(cases, .(id), function(x) { icd9cm_sessler_rsi(x$icd9cm) } )
Output:
id rsi_1yrpod rsi_30dlos rsi_30dpod rsi_inhosp
1 1 -0.2860474 1.2481208 -0.5722244 -0.2612804
2 2 0.1417417 0.9779779 -1.0318395 0.0000000
Could anyone please help me?
Thanks,
Ramesh
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