其实在临床科研中,也有“真假美猴王”的存在,那就是相对危险度(Relative Risk),一种我们在队列研究或者临床试验研究中常用于反应暴露(包括某种特征、某种行为或接触某种研究物质)与结局关联强度的指标。细心的同学可能会发现,相对危险度也叫危险比(Risk Ratio)或率比(Rate Ratio),虽然它们的缩写都是RR,但是所代表的...
我们发现抗生素治疗并不能预防患者的细菌感染(Risk Ratio=1),但是可以延缓患者的细菌感染(Rate Ratio=0.625)。换句话说,在一定时间段内,抗生素治疗可能可以降低患者发展为细菌感染的风险。总之,我们需要确定研究目的后再选择Risk ratio或Rate Ratio。另外,在以后文献阅读和二次数...
相对危险度(relative risk, RR)或率比(rate ratio)是指暴露组发病率(])与非暴露组发病率(I)之比,它反映了暴露与疾病的关联强度。计算公式:
百度试题 结果1 题目下列哪种指标属于描述性研究? A. relative risk(相对风险) B. odds ratio(优势比) C. incidence rate(发病率) D. prevalence(患病率) 相关知识点: 试题来源: 解析 C 反馈 收藏
百度试题 结果1 题目下列哪些指标用于衡量治疗效果? A. relative risk(相对风险) B. odds ratio(优势比) C. incidence rate(发病率) D. prevalence(患病率) E. number needed to treat(治疗所需人数) 相关知识点: 试题来源: 解析 B, E 反馈 收藏 ...
Thank you to the editor Paul Bergin, two anonymous referees as well as seminar participants at NOITS, RATIO, Stockholm School of Economics and Abhijeet Singh for valuable comments. Financial support from the Jan Wallander and Tom Hedelius Foundation is gratefully acknowledged....
With multiple logistic regression analysis for odds ratio (OR) of associated factors for smoking cessation, the results showed heavy smokers who used varenicline and successfully quit smoking in 6 months outnumbered those who used NRT (OR: 2.44, 95% Confidence interval (CI): 1.26–4.74) and the...
3c) (actual ratio, 876:1490:834). Thus, we can describe how polymerase errors arise in an individual division and later become permanent as a compound Poisson-binomial process. Fig. 3: Asymmetric segregation broadens the distribution of mutation burden in mutator cell populations. a Combined ...
A meta-analytic review in 2012 reported a positive likelihood ratio of 3.57 and a negative likelihood ratio of 0.34 for EST [3]. Therefore, EST is only recommended for risk assessment rather than for diagnosing CAD, due to its poor diagnostic accuracy [4]. Although invasive coronary ...
Also, comparing stocks in different industries can be difficult since the risk or beta will be different. As with any financial ratio or metric, it's best to utilize multiple ratios in your analysis when considering investment opportunities. ...