Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cumulative 10-year incidence of second primary lung cancer (SPLC) by decile (D) of the estimated risk using the prediction model. In each decile of individuals, the marginal cumulative incidence of SPLC was calculated and the equality of the estimated incidences across groups was tested using the method by Gray.26
