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- W2029077822 abstract "A possible association had previously been noted between gender and prognosis in non-small cell lung cancer (NSCLC), with a better survival rate for women.The purpose of the current study was to further clarify the role of gender as a possible prognostic factor in NSCLC.This retrospective cohort study examined the survival of NSCLC patients who underwent surgical curative treatment at the Hospital Sao Lucas da PUCRS, Porto Alegre, Brazil, between January 1, 1990, and December 31, 2000. Data were analyzed using Kaplan-Meier survival curves. In addition, a Cox proportional hazards regression model was used to adjust for potential confounding factors.In the period studied, lung resections were performed in 253 patients with NSCLC, of whom 114 had stage I tumors. Four patients were excluded because of death in the immediate postoperative period, and 1 committed suicide. The 5-year survival rate was 85.5% for women and 46.4% for men (P<0.0001). The median overall survival time was 44.7 months (interquartile range [IQR(25%-75%)], 17.4-72.3 months) and was longer in women than in men: 63.9 months (IQR(25%5%), 35.2-98.7 months) versus 32.3 months (IQR(25%-75%), 11.8-61.5 months), respectively (P<0.0001). Gender effect was still present after adjustment by Cox regression for several factors (age, smoking habits, hemoglobin, forced expiratory volume in 1 second, tumor size, tumor-node-metastasis stage, histology, postoperative complications, and surgery type). The adjusted hazard ratio in women was 0.23 (95% CI, 0.09-0.59; (P<0.0001) when compared with men.This study confirms previous findings that women live longer than men after surgery for stage I NSCLC. This effect persisted after adjusting for several factors. These results highlight the fact that analyses of long-term survival of NSCLC patients, usually generalized to men and women as a whole, may be an inadequate extrapolation. These results question whether analyses of long-term survival, which commonly group men and women together, provide an adequate prognosis of survival rates in women with NSCLC." @default.
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- W2029077822 date "2004-08-01" @default.
- W2029077822 modified "2023-09-26" @default.
- W2029077822 title "Is there a gender difference in non-small cell lung cancer survival?" @default.
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- W2029077822 doi "https://doi.org/10.1016/s1550-8579(04)80009-3" @default.
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