吸烟的晚期膀胱癌患者病情转归的性别差异
2011/10/11
摘要
目的:在接受膀胱切除术的患者中评价吸烟对膀胱癌表现和转归的影响。
方法:对来自“大学健康网络(加拿大多伦多市)”和“图尔库大学医院(芬兰图尔库市)”的包含546名患者的数据库进行研究。除研究吸烟与临床病理学参数之间的关系外,同时分析吸烟对生存的影响。分类数据采用卡方检验,定量数据采用t检验。Kaplan-Meier法、log-rank检验和比例风险模型用于估计吸烟对生存的影响。
结果:352名患者(64%)为吸烟者,194名 (36%)为非吸烟者。吸烟者更容易发生晚期肿瘤和淋巴结转移。吸烟者和非吸烟者的10年疾病特异性生存率(DSS)分别为52%和66%(P= 0.039)。吸烟者的总体生存情况较差(10年总生存率分别为37% vs 62% P= 0.015)。吸烟显著影响男性DSS(P= 0.012),但对女性DSS无影响。变量模型显示,吸烟与膀胱癌特异性死亡率相关的风险比(HR)为1.4(95%CI:1.0-1.9),与总死亡率的HR为1.4(95%CI:1.1-1.8)。在多变量模型中,吸烟并未对DSS产生影响(HR, 1.1; 95% CI, 0.8-1.6; P= 0.41)。除了肿瘤晚期和淋巴结转移外,女性也是DSS的一个独立危险因素(HR, 1.6; 95% CI, 1.1-2.3; P= 0.007)。
结论:吸烟的膀胱癌患者在接受根治性膀胱切除术后,具有较差的疾病转归,然而吸烟似乎并不是患者生存的独立预后因素。吸烟仅影响男性的生存期。虽然女性的生存结果较差,但与吸烟无关。
(陈欣审校)
BJU Int. 2011 Aug 18. doi: 10.1111/j.1464-410X.2011.10371.x. [Epub ahead of print]
Sex differences in bladder cancer outcomes among smokers with advanced bladder cancer.
Boström PJ, Alkhateeb S, Trottier G, Athanasopoulos PZ, Mirtti T, Kortekangas H, Laato M, van Rhijn B, van der Kwast T, Fleshner NE, Jewett MA, Finelli A, Zlotta AR.
Source
Division of Urology, Department of Surgical Oncology, Princess Margaret Hospital, University Health Network Department of Pathology, University Health Network Mount Sinai Hospital, University of Toronto, Ontario, Canada Department of Pathology, Turku University Hospital, Turku Finland and Department of Pathology, Helsinki University Hospital, Helsinki Division of Urology, Department of Surgery, Turku University Hospital, Turku, Finland.
Abstract
OBJECTIVE: To study the effect of smoking on bladder cancer presentation and outcome in a large cystectomy population.
PATIENTS AND METHODS: A database including 546 patients from the University Health Network (Toronto, Canada) and Turku University Hospital (Turku, Finland) was studied. • In addition to the association of smoking with clinicopathological parameters, the effect of smoking on survival was analyzed. • Categorical data were analyzed by the chi-squared test and numerical data were analyzed by Student’s t-test. • The Kaplan-Meier method, log-rank test and a proportional hazards model were used to estimate the effect of smoking on survival.
RESULTS: In total, 352 patients (64%) were smokers and 194 (36%) were non-smokers. • Smokers had more frequently advanced tumours and nodal metastasis. • The 10-year disease-specific survival (DSS) was 52% vs 66% for smokers and non-smokers, respectively (P= 0.039). • Smokers also had significantly worse overall survival (10-year overall survival 37% vs 62%; P= 0.015). • Smoking affected significant DSS among men (P= 0.012), although no effect was observed among women. • In a univariate model smoking was associated with a hazard ratio (HR) of 1.4 (95% confidence interval, CI, 1.0-1.9) for bladder cancer specific mortality and 1.4 (95% CI, 1.1-1.8) for overall mortality. • In a multivariate model, smoking did not impact on DSS (HR, 1.1; 95% CI, 0.8-1.6; P= 0.41). • In addition to advanced stage and nodal metastasis, female sex was an independent risk factor for DSS (HR, 1.6; 95% CI, 1.1-2.3; P= 0.007).
CONCLUSIONS: Smokers appear to have worse outcomes after radical cystectomy for bladder cancer; however, it does not appear to be an independent prognostic factor for survival. • Smoking affected survival only among men. • Women had poorer survival but smoking was not a contributing factor to this
BJU Int. 2011 Aug 18. doi: 10.1111/j.1464-410X.2011.10371.x. [Epub ahead of print]
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