摘要
NNT是近年提出的一种绝对危险度测量指标 ,含义为预防 1例不良事件发生 ,临床医师在一段时间内应用某一疗法需治疗的病人数 ,最初主要用于临床试验效果的评价。文章介绍了 NNT的概念、点值估计及其 95 %可信区间的计算方法 ;采用实例重点介绍了 NNT在慢性病防治效力评价、慢性病筛查效力评价、慢性病防治的成本效果评价等方面的应用。
The number needed to treat(NNT),a new useful statistic to report results of clinical trials,was defined as the number of people that need to be treated for a given duration to prevent one death or one adverse event in 1988.This article introduced the concept and computing method of NNT,and reviewed its applications in evaluating the efficacy of prevention and control,screening strategy,and cost effective analysis of chronic diseases.
出处
《中国慢性病预防与控制》
CAS
2000年第3期99-102,共4页
Chinese Journal of Prevention and Control of Chronic Diseases
