Campos-Filho N, Franco E L
Epidemiology and Biostatistics Unit, Ludwig Institute for Cancer Research, Sao Paulo, Brazil.
Comput Methods Programs Biomed. 1988 Nov-Dec;27(3):223-8. doi: 10.1016/0169-2607(88)90086-7.
We describe a microcomputer program (KMSURV) for exploratory univariate statistical analysis of survival data which is directly applicable to the evaluation of clinical trials and to retrospective epidemiological studies of hospital registry-based data. The program calculates life-table-like information based on Kaplan-Meier's product-limit estimators of the survivorship function S(t) and provides summary measures of average survival times. In addition, two non-parametric tests for the comparison of survival distributions are performed. A report-quality, high resolution plot of the S(t) estimates for all groups being compared complements each set of analyses. KMSURV is not a simple adaptation of a mainframe statistical analysis package and, thus, it utilizes efficiently the interactive environment which is inherent in microcomputing.
我们描述了一个用于生存数据探索性单变量统计分析的微机程序（KMSURV），该程序可直接应用于临床试验评估以及基于医院登记数据的回顾性流行病学研究。该程序基于生存函数S(t)的Kaplan-Meier乘积限估计器计算类似生命表的信息，并提供平均生存时间的汇总指标。此外，还进行了两种用于比较生存分布的非参数检验。对所有被比较组的S(t)估计值生成的高质量、高分辨率绘图补充了每组分析。KMSURV并非大型机统计分析软件包的简单改编，因此，它有效地利用了微机所固有的交互式环境。
