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Sci Rep:放疗与第二原发性肺癌的发病率较低相关

2019-12-20 xiangting MedSci原创

随访的前5年内,接受放疗的IPLC幸存者发生异时性SPLC的风险较低,尤其是非小细胞肺癌。

这项研究旨在估算初次原发性肺癌IPLC)幸存者中异时性第二原发性肺癌SPLC)的发病率,并确定肺癌诊断后的前五年,放疗是否会影响异时性SPLC的风险。

SEER-18数据库获得2004-2007年存活≥2IPLC患者的发病率数据。使用joinpoint回归分析和竞争风险分析计算异时性SPLC的发病率。倾向得分匹配和决策分析可用于评估放疗对异时性SPLC的影响。

5年的随访期间,接受放疗的11657IPLC幸存者和没有放疗的24499IPLC幸存者中分别有264名和1090名出现了异时性SPLC。在joinpoint回归分析中,放疗组的5年异时性SPLC发病率低于非放疗组(2385/10vs 4748/10万,HR = 0.43,95CI0.39–0.47)。竞争风险分析表明,与未接受放疗的幸存者比较,放疗与异时性SPLC5年发病率较低相关(2.28vs 4.47%,HR = 0.49,95CI0.43-0.57)。通过倾向评分匹配,4077对幸存者可用于进一步的研究,调整各种因素后,放疗可以降低出现异时性SPLC的风险(2.5vs 3.3%,HR = 0.7295CI0.55-0.96)。决策分析表明,放疗是异时性SPLC的负性独立危险因素,在风险阈值范围内(2-5%)具有临床净收益。

随访的前5年内,接受放疗的IPLC幸存者发生异时性SPLC的风险较低,尤其是非小细胞肺癌。

原始出处:

Zhi Gang Hu. Radiotherapy was associated with the lower incidence of metachronous second primary lung cancer. Sci Rep. 17 December 2019.

本文系梅斯医学(MedSci)原创编译整理,转载需授权!

 

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