SAS宏程序在病例交叉设计资料整理中的应用  

Application of SAS macro code in sorting data in case-crossover design

作　　者：王德征[1] 江国虹[1] 徐忠良[1] 张辉[1] 宋桂德[1] 张颖[1] 沈成凤[1] 顾清[1] 

机构地区：[1]天津市疾病预防控制中心非传染病预防控制所,天津300011

出　　处：《中华疾病控制杂志》2015年第10期1057-1061,共5页Chinese Journal of Disease Control & Prevention

基　　金：国家973计划课题(2011CB503801);天津市卫生局科技基金课题(2013KY22)

摘　　要：目的简述病例交叉设计的基本概念,为降低数据整理的难度,开发SAS宏程序。方法通过原始数据结构标准化,SAS宏程序交互获取病例交叉设计参数,自动完成数据整理,并对源程序进行编译加密。结果实现无需因原始记录的增减而调整参数设置;实现自由设置前后对照、对照数、对照间隔并自动完成匹配,并可满足对急性危害迟滞效应的分析。结论笔者编写的SAS宏程序具有通用、简便、实用的特点,大大提高了病例交叉设计数据整理的灵活性和工作效率,在流行病学研究中具有一定的实用价值。Objective To introduce the ease-crossover design in methodology, and to explore the efficient SAS macros implementation of sorting data in case-crossover design. Methods By standardizing the original data structure and obtaining the parameters through interactive program, SAS macro codes were developed to sorting data automatically in case-crossover design, and were compiled as an entry. Results Through the flexible SAS macro program, the parameters of case-crossover design, including unidirectional or bidirectional controls, distance in case/controls, and lag effects could be automatically determined. Conclusions The SAS macro code here developed is simple,practical and flexible, and can be efficiently used in sorting data in the study of case-crossover design.

关 键 词：研究设计 统计数据 统计学 医学 

分 类 号：R181.1[医药卫生—流行病学]