郑州大学学报(医学版)
鄭州大學學報(醫學版)
정주대학학보(의학판)
JOURNAL OF ZHENGZHOU UNIVERSITY(MEDICAL SCIENCES)
2014年
1期
62-65
,共4页
赵晓蒙%李炳海%王素珍%任艳峰%王小礼
趙曉矇%李炳海%王素珍%任豔峰%王小禮
조효몽%리병해%왕소진%임염봉%왕소례
倾向指数%匹配法%局限期小细胞肺癌%生存分析
傾嚮指數%匹配法%跼限期小細胞肺癌%生存分析
경향지수%필배법%국한기소세포폐암%생존분석
propensity score%matching method%limited disease small cell lung cancer%survival analysis
目的:应用倾向指数匹配法均衡组间的协变量,评价单纯应用放疗( CRT )与三维适形放疗联合化疗( CCRT)对局限期小细胞肺癌( LD-SCLC)的治疗效果。方法:LD-SCLC患者224例,其中CRT 109例,CCRT 115例。基线资料包括性别(1=男,0=女)、年龄、吸烟(1=是,2=否)、结核(1=有,2=无)、家族史(1=有,2=无)、TNM分期(1=Ⅰ期,2=Ⅱ期,3=ⅢA期,4=ⅢB期)、血清神经元特异性烯醇化酶(NSE)水平、KPS评分、肿瘤数量(1=单个,2=多个)等。以分组变量为因变量,以协变量为自变量,建立logistic回归模型,计算倾向指数,然后按照倾向指数进行组间卡钳匹配。分别对匹配前后的数据进行生存分析。结果:匹配前CRT组和CCRT组的中位生存期(95%置信区间)分别为2.15(1.96~2.48)和2.37(2.06~2.72) a,1 a生存率分别为82.65%和83.36%,2 a生存率分别为59.02%和64.30%,3 a生存率分别为25.28%和29.34%,两组生存曲线差异无统计学差异(χ2=2.173, P=0.186)。两组共94对匹配成功。匹配后CRT组和CCRT组的中位生存期(95%置信区间)分别为2.14(1.75~2.44)和2.75(2.38~2.92) a,1 a生存率分别为82.24%和85.36%,2 a生存率分别为56.39%和66.20%,3 a生存率分别为23.44%和34.37%,两组生存曲线差异有统计学意义(χ2=11.045,P=0.008)。结论:采用倾向指数匹配法能有效降低非随机化临床试验数据的混杂偏倚。
目的:應用傾嚮指數匹配法均衡組間的協變量,評價單純應用放療( CRT )與三維適形放療聯閤化療( CCRT)對跼限期小細胞肺癌( LD-SCLC)的治療效果。方法:LD-SCLC患者224例,其中CRT 109例,CCRT 115例。基線資料包括性彆(1=男,0=女)、年齡、吸煙(1=是,2=否)、結覈(1=有,2=無)、傢族史(1=有,2=無)、TNM分期(1=Ⅰ期,2=Ⅱ期,3=ⅢA期,4=ⅢB期)、血清神經元特異性烯醇化酶(NSE)水平、KPS評分、腫瘤數量(1=單箇,2=多箇)等。以分組變量為因變量,以協變量為自變量,建立logistic迴歸模型,計算傾嚮指數,然後按照傾嚮指數進行組間卡鉗匹配。分彆對匹配前後的數據進行生存分析。結果:匹配前CRT組和CCRT組的中位生存期(95%置信區間)分彆為2.15(1.96~2.48)和2.37(2.06~2.72) a,1 a生存率分彆為82.65%和83.36%,2 a生存率分彆為59.02%和64.30%,3 a生存率分彆為25.28%和29.34%,兩組生存麯線差異無統計學差異(χ2=2.173, P=0.186)。兩組共94對匹配成功。匹配後CRT組和CCRT組的中位生存期(95%置信區間)分彆為2.14(1.75~2.44)和2.75(2.38~2.92) a,1 a生存率分彆為82.24%和85.36%,2 a生存率分彆為56.39%和66.20%,3 a生存率分彆為23.44%和34.37%,兩組生存麯線差異有統計學意義(χ2=11.045,P=0.008)。結論:採用傾嚮指數匹配法能有效降低非隨機化臨床試驗數據的混雜偏倚。
목적:응용경향지수필배법균형조간적협변량,평개단순응용방료( CRT )여삼유괄형방료연합화료( CCRT)대국한기소세포폐암( LD-SCLC)적치료효과。방법:LD-SCLC환자224례,기중CRT 109례,CCRT 115례。기선자료포괄성별(1=남,0=녀)、년령、흡연(1=시,2=부)、결핵(1=유,2=무)、가족사(1=유,2=무)、TNM분기(1=Ⅰ기,2=Ⅱ기,3=ⅢA기,4=ⅢB기)、혈청신경원특이성희순화매(NSE)수평、KPS평분、종류수량(1=단개,2=다개)등。이분조변량위인변량,이협변량위자변량,건립logistic회귀모형,계산경향지수,연후안조경향지수진행조간잡겸필배。분별대필배전후적수거진행생존분석。결과:필배전CRT조화CCRT조적중위생존기(95%치신구간)분별위2.15(1.96~2.48)화2.37(2.06~2.72) a,1 a생존솔분별위82.65%화83.36%,2 a생존솔분별위59.02%화64.30%,3 a생존솔분별위25.28%화29.34%,량조생존곡선차이무통계학차이(χ2=2.173, P=0.186)。량조공94대필배성공。필배후CRT조화CCRT조적중위생존기(95%치신구간)분별위2.14(1.75~2.44)화2.75(2.38~2.92) a,1 a생존솔분별위82.24%화85.36%,2 a생존솔분별위56.39%화66.20%,3 a생존솔분별위23.44%화34.37%,량조생존곡선차이유통계학의의(χ2=11.045,P=0.008)。결론:채용경향지수필배법능유효강저비수궤화림상시험수거적혼잡편의。
Aim: To compare the effects of single chemotherapy ( CRT ) and conformal radiotherapy combined with chemotherapy(CCRT) on limited disease small cell lung cancer (LD-SCLC) patients after balancing the covariates by pro-pensity score .Methods:A total of 224 LD-SCLC patients were subjected ,among which ,109 accepted CRT , and 115 ac-cepted CCRT .A logistic regression model was established ,and the treatment assignment was taken as the dependent varia-ble and the covariates as the independent variables .For each LD-SCLC patient , the propensity score was calculated for cal-iper matching and a survival analysis of the matched data was carried out .Results: Before matching , the median survival time (95%CI) of CRT and CCRT were 2.15(1.96-2.48) and 2.37(2.06-2.72) years,respectively;one-, two-, and three-year survival rates were 82.65%and 83.36%, 59.02% and 64.30%,25.28% and 29.34%, respectively.There was no significant difference in survival curve between the two groups (χ2 =2.173,P=0.186).A total of 94 pairs patients were matched by propensity score .After matching, the median survival time(95%CI) of CRT and CCRT were 2.14(1.75-2.44) and 2.75(2.38-2.92) years;One-, two-, and three-year survival rates were 82.24%and 85.36%, 56.39%and 66.20%, 23.44%and 34.37%, respectively.There was a significant difference in survival curve between the two groups (χ2 =11.045,P=0.008).Conclusion: Propensity score matching can effectively reduce the confounding bias of non-randomized clinical observational data .