lead time bias 英[li:d taim ˈbaiəs] 美[lid taɪm ˈbaɪəs] 释义 [医]领先时间偏倚 行业词典 医学 领先时间偏倚在观察某措施对预后的影响时,即使措施无效,也会因确诊时间的领先而出现上述病例的生存期长于出现症状后被医院确诊病例的生存期的假象。
百度试题 题目lead time bias 相关知识点: 试题来源: 解析 领先时间偏倚(lead time bias):指筛检诊断时间和临床诊断时间之差被解释为因筛检延长的生存时间。这种表面上延长的生存时间,实际上是筛检导致诊断时间提前所致的偏倚。反馈 收藏
Lead time 的中文名我们浅译为 前置时间,意思是从通过各种早期筛查手段发现该疾病(如肺癌)到该疾病真正能被临床表现所诊断之间的这段时间。Lead-time bias occurs when a disease is detected by a screening o…
Related Content In this work Inception Cohort Zero-Time Shift Lead-Time Bias (Syn: zero time shift) Overestimation of survival time, owing to the backward shift in the starting point for measuring survival that arises when diseases such as cancer are detected early, as by screening procedures...
Related Content In this work Inception Cohort Zero-Time Shift Lead-Time Bias (Syn: zero time shift) Overestimation of survival time, owing to the backward shift in the starting point for measuring survival that arises when diseases such as cancer are detected early, as by screening procedures...
Lead time bias Leadtimebias •theperiodbetweenearlydetectionofdiseaseandthetimeofitsusualclinicalpresentation •screeningwillappeartoincreasesurvivaltime(thisgainiscalledleadtime).Ifwedonotthinkaboutwhatsurvivaltimeactuallymeansinthiscontext,wemightattributesuccesstoascreeningtestthatdoesnothingbutadvancediagnosis Leng...
网络时间领先偏倚 网络释义 1. 时间领先偏倚 ...也不能拍出各种干扰正确、客观评价筛查工作的偏倚,即时间领先偏倚(lead-time-bias)、病程长度偏倚(lengthbias)和自 … brand.whnews.cn|基于2个网页
Abstract Lead time bias refers to the apparent increase in survival when a disease is diagnosed earlier and survival is measured from the time of diagnosis to the time of death. In screening studies it is avoided by measuring survival from the time of screening, not the time of diagnosis....
The magnitude of lead-time bias on endoscopic screening for esophageal cancer varied depending on the screening strategies, in which an inverted U-shaped and U-shaped effects were observed in the 5-year cause-specific survival rate and cause-specific hazard ratio respectively concerning a range of...
lead time 基本解释 订货至交货的时间 [计] 研制周期; 交付周期 词组短语 1、lead-time n. 交付周期; 更换模具的时间 2、longlead time[计] 长研制周期 3、orderlead time[经] 订货间隔期(提前期) 4、procurementlead time[经] 采购间隔期 5、lead timebias 领先时间偏倚 ...