Clinical and non-contrast computed tomography characteristics and disease development in patients with benign pulmonary subsolid nodules with a solid component ≤ 5 mm.

"Declarations Ethics approval and consent to participateThis study was conducted in accordance with the tenets of the Declaration of Helsinki (as revised in 2013). The ethics committee of our institute (First Affiliated Hospital of Chongqing Medical University) approved the study protocol, and the requirement for informed consent was waived owing to the retrospective nature of the study. The patients’ information used for data analysis was anonymized. Consent for publicationThe informed consent requirement was waived owing to the retrospective nature of the study. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding This study was supported by Chongqing Medical Scientific Research Project (a joint project of Chongqing Health Commission and Science and Technology Bureau) (2022MSXM147), Chongqing Health Commission Foundation (2020jstg027), and Chongqing Talents Program Research Project (Chongqing Science and Technology Bureau) (cstc2022ycjh-bgzXM0230)."