风险比(Hazard Ratio,HR)是一种用于比较两个组之间事件发生速度的统计指标。在医学和生存分析领域中,风险比通常用于描述治疗组与对照组之间某一事件(如死亡、疾病复发)发生的相对风险。 The hazard ratio describes the relative risk of the complication based on comparison of event rates.[1] 举例说明: 在研究...
我怎么理解风险比(hazard ratio) 假设现在有两组人群,一组是正常体重组,一种是超重组。现在要观察他们在一定时间内患糖尿病的可能性。在观察结束时,得到正常体重组患糖尿病的人数比例为10%,超重组患糖尿病的…
一些风险因子包括年龄、性别、血压(收缩压)、是否抽烟、血清总胆固醇以及是否患有糖尿病,经过 Cox 模型计算,得到各个风险因子的参数估计,如年龄对应的参数为 0.11691,也就是之前公式中的系数为 0.11691,大于 0 表示年龄增加会增加风险,风险比 (hazard ratio) 为 exp(0.11691) = 1.124 ,即表格最后一列,该数值大于...
prognostic and predictive valuerisk ratiorelative risklog‐rank testproportional hazardsCox modelDefinitionThe hazard ratio is an estimate of the ratio of the hazard rate in the treated versus the control group or between two differently treatedgroups. In a clinical trial where disease resoluti...
A hazard ratio is the probability of an event in a treatment group relative to the control group probability over a unit of time.
Risk Ratio (Relative Risk) Standard error and confidence interval formula One-sided vs. two-sided intervals Using the hazard ratio calculator This calculator allows you to perform a post-hoc statistical evaluation of time to event data when the outcome of interest is the change in the average ...
However, there was crossover in mortality risk between placebo and the CEE+MPA (see Fig. 39.22) and CEE (see Fig. 39.23) therapies after 5 to 6 years in WHI, suggesting a trend to decreasing mortality in the hormone group relative to placebo with longer duration of hormone therapy, as ...
(95% CI 0.16; 0.70 and 98% CI 0.14; 0.80), Poisson regression **risk ratio** (RR) 0.34 (95% CI 0.15; 0.74 and 98% CI 0.13; 0.84), exact test for stratified 2x2 tables odds ratio (OR) 0.34 (95% CI 0.15; 0.75 and 98% CI 0.13; 0.85) or stratified Cochran-Mantel-Haenszel (...
risk n. [安全]危险,冒险;冒险的事 risk / throw / venture / adventure 双语例句 A new report suggests that chewing gum may be a health hazard. 一份新的报告指出,嚼口香糖可能给健康带来危害。 Catching colds is unfortunately an occupational hazard in this profession. 不幸的是,患感冒是这个行业的...
risk[英][r?sk][美][r?sk]危险率 3)dangerous frequency危险频率 1.Three measurements for the dangerous frequency of the electronic equipments were put forward.提出了3种检测危险频率的方法。 4)hazard rate ordering危险率序 1.The present paper discusses stochastic comparisons of Rayleigh distributions,...