Smoking related lung cancers

This is a subset of data available from the US National Lung Screening Trial (NLST). The data contains information about current and former smokers who were observed for 7 years and were tested for lung cancer each year. No non-smokers were involved in the trial.

Data contains:

pid - anonymous identifier of a person age - age of a person at the start of the trial gender - Male/Female race - the race of a person smoker - Former/Current (Former is defined as quit smoking in last 15 years) days_to_cancer - number of days passed since the trial when the cancer was first observed stage_of_cancer - the stage of cancer when the cancer was first observed