TABLE 2

Summary of the sensitivity and specificity for the 1-year risk of death for a randomly selected year (2012) for the Canadian cystic fibrosis population

Died in year 1Alive at 1 year
Risk of death 20–99%1496PPV 13%
Risk of death 0–19.9%52429NPV 100%
Sensitivity 74%Specificity 96%

PPV: positive predictive value; NPV: negative predictive value.