Real-World Survival Comparisons Between Radiotherapy and Surgery for Metachronous Second Primary Lung Cancer and Predictions of Lung Cancer–Specific Outcomes Using Machine Learning: Population-Based Study

Yue Zheng   ^{1, 2 *} , MD ;   Ailin Zhao   ^{3 *} , MD ;   Yuqi Yang   ^{4 *} , MBBS ;   Laduona Wang   ^{1, 2} , MD ;   Yifei Hu   ⁴ , MBBS ;   Ren Luo   ^{1, 2} , MD, PhD ;   Yijun Wu   ^{1, 2} , MD

¹ Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China

² Laboratory of Clinical Cell Therapy, West China Hospital, Sichuan University, Chengdu, China

³ Department of Hematology, West China Hospital, Sichuan University, Chengdu, China

⁴ West China School of Medicine, Sichuan University, Chengdu, China

*these authors contributed equally