Limitations:
There are several limitations to our meta-analysis. The number of articles included is low in number and quality, and the articles we include may be potentially biased in the review process. We included only one unpublished article, the rest were published articles, which means there may be publication bias. Moreover, only English language studies are included, so relevant studies published in other languages may be missing. The literature was all retrospective, with no RCTs, allowing for the introduction of error due to confounding and bias. In addition, due to the insufficient number of cases, factors that cannot be controlled consistently may have an impact, such as different types of surgery (thoracotomy or thoracoscopy), lesion size, gender, etc., and further evaluate whether it affects the results. For lack of long-term prognostic indicators in the literature makes it difficult to fully assess how age affects patient outcomes after elective CPAM resection.