OpenIntro Statistics Dataset - heart_transplant

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dataset-422387111.csv 3.99 KB
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This dataset was taken from the list of OpenIntro dataset files found at

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The Stanford University Heart Transplant Study was conducted to determinewhether an experimental heart transplant program increased lifespan. Eachpatient entering the program was designated officially a heart transplantcandidate, meaning that he was gravely ill and would most likely benefitfrom a new heart. Then the actual heart transplant occurs between a fewweeks to several months depending on the availability of a donor. Very fewcandidates during this waiting period show improvement and get\emph{deselected


  • id - ID number of the patient.
  • acceptyear - Year of acceptance as a heart transplant candidate.
  • age - Age of the patient at the beginning of the study.
  • survived - Survival status with levels alive and dead.
  • survtime - Number of days patients were alive after the date they were determined to be a candidate for a heart transplant until the termination date of the study
  • prior - Whether or not the patient had prior surgery with levels yes and no.
  • transplant - Transplant status with levels control (did not receive a transplant) and treatment (received a transplant).
  • wait - Waiting Time for Transplant


as a heart transplant candidate, but for the purposes ofthis experiment those patients were kept in the data as continuingcandidates.}

Taken from:

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