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More information is needed on gender differences in lung cancer surgery. Thus, we conducted a retrospective study on thoracic treatment of non-small cell lung cancer (NSCLC) patients between 2007 and 2020 in Poland. The aim was to characterize sex differences in survival after complete surgical resection and to compare postoperative complications between Polish men and women. The main aspects that were compared between women and men were as follows: type of surgery and postoperative staging, morbidity and mortality, thoracic surgery complications, comorbidities, and overall survival based on a univariate analysis including propensity score matching (PSM) and a multivariate analysis.Data were collected retrospectively from the Polish Lung Cancer Study Group database. Patients who were surgically treated for NSCLC between 2007 and 2020 (n = 17,192) were included in the study.The univariate analysis showed significantly better survival in women than in men. Women had better 5-year survival compared to men both for adenocarcinoma and squamous cell carcinoma (66% vs. 53%, p 0.0001 and 65% vs. 51%, p0.0001%, respectively), for both smokers and non-smokers (65% vs. 52%, p 0.0001 and 65% vs. 51%, p 0.0001, respectively), all age groups, and all stages (IA1 to III B). In the PSM analysis, statistically significant differences in favor of women were found for lower lobectomy (67% vs. 50%, p 0.0001) and upper lobectomy (67% vs. 56%, p 0.0001). Overall, postoperative complications occurred in 33.1% of patients and were observed more often in men than in women (35.8% vs. 28.6%, p 0.001).Women with NSCLC who were treated surgically had a better long-term outcome compared to men, with no significant difference in disease severity. In addition to gender, the histological type, comorbidities, and type of surgery and surgical approach are also important. |
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