Risk reclassification table at 3 years of follow up based on models including pN stage and LNR respectively.

<p>Net Reclassification Index (NRI) = 3.2% (p value 0.08). Patients are categorized into risk categories of death based on their individual survival probabilities obtained from models A and B such that a patient with a high survival probability is categorized into the ‘low risk of death’ group and so on.