Mortality rates, rate ratios, and rate differences in NLST participants by trial arm and by decile of PLCOm2012 risk.

PLCOm2012 model risk decile boundaries were established in PLCO control smokers.*Rate difference is incidence rate in CT arm per 10,000 minus incidence rate in CXR arm per 10,000. A negative absolute rate indicates a lower rate of lung cancer death in the CT arm compared to the CXR arm. PLCOm2012 refers to the lung cancer risk prediction model described in [11].NA, not applicable (because of zero occurring in denominator).Mortality rates, rate ratios, and rate differences in NLST participants by trial arm and by decile of PLCOm2012 risk.