Specifically, each unit increase in the pre‐PNI×postoperative NSE interaction term—calculated as (10 × serum albumin [g/dL] + 5 × total lymphocyte count [/nL] × NSE)‐corresponds to a 1.176‐fold increased risk of postoperative recurrence in stage IB NSCLC patients. The gene discussed is ALB; the disease is non-small cell lung carcinoma.