Comparison of efficacy and safety of neoadjuvant immunochemotherapy in young and elderly patients with IIA–IIIB non-small-cell lung cancer in real-world practice

Abstract Objective There is currently no consensus over whether neoadjuvant immunochemotherapy is more effective in young patients than in elderly patients with IIA–IIIB non-small-cell lung cancer (NSCLC). In this study, we compare the efficacy and safety of neoadjuvant immunochemotherapy in young and elderly patients with IIA–IIIB NSCLC. Methods This retrospective study consecutively included IIA–IIIB NSCLC patients who received 2–4 cycles preoperative immunochemotherapy at the Department of Thoracic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine from 2019 to 2022. The 1:1 propensity score match analysis was conducted to balance the confounding factors between the young patient group (