Coursera Data products RStudio Presentation Project: ABCD² Score Calculator

Ramesh Maganti
November 14, 2014

What is it?

The ABCD² score is a useful clinical prediction rule to determine the risk for stroke in the days following a transient ischemic attack(TIA)

  • People with a high-risk ABCD² score will require immediate specialist assistance
  • Based on 5 parameters(age, blood pressure, clinical features, duration of TIA and presence of diabetes)
  • ABCD² score ia a good predictor of the risk of stroke within 2, 7 and 90 days after TIA
  • Not intended to substitute clinical decison making in patients

ABCD² Scoring Algorithm

Scores less than 3 are interpreted as low risk, between 4-5 as medium risk and greater than 5 as high risk. For each risk level, the corresponding risk percentage for a 2 day, 7 day and 90 day period, after TIA, is computed and plotted.

ABCD² Calculator Results

testsc<-riskdata[riskdata$score==score, ]
head(testsc)

   score days perc   type
16     5    2  4.2 Medium
17     5    7  5.9 Medium
18     5   90  9.8 Medium

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Start Using the ABCD² Calculator now!

The ABCD² score is very easy to use, free and available on the web. All you have to is to enter the values,click on the Submit button and you will see the resulting plot and risk profile instantly!!