One other thing: "metan" is the most popular Stata command for meta-analysis, but it is no longer maintained and the last update was 8 years ago. As part of a larger suite of meta-analysis programs (focussing particularly on individual patient data (IPD) meta-analysis), I have written an alternative command called "admetan". Hi, I am conducting a meta-analysis of some cancer data using the hazard ratio for overall survival and the upper and lower 95% confidence intervals. Usually meta-analyses of a ratio estimator like a hazard ratio, relative risk or odds ratio are better conducted on the log scale. • The hazard ratio (𝐻 ) is a measure of the relative hazard in two groups i.e. ratio of the hazard for one group compared to another. Suppose that we wish to compare Treatment group relative to Control: 𝑯𝑹= 𝑯𝒂𝒛𝒂𝒓 𝑻𝒓𝒕 𝑯𝒂𝒛𝒂𝒓 𝑪𝒕𝒓𝒍 0<𝐻 <1 Trt group are at a decreased hazard compared to control. 先介绍（1）Hazard Ratio（2）Meta分析的数据合并，再介绍（3）Meta分析怎么合并HR （1）Hazard Ratio Hazard为目标事件在某个时间段发生的风险。不同的时间段或不同长短的时间段，Hazard值将会有不同的结果。在Pr… Meta-Analysis of Hazard Ratios Introduction This module performs a meta- analysis on a set of two-group, time to event (survival), studies in which some data may be censored. These studies have a treatment group and a control group. Each study’s result may be summarized by the log hazard ratio and its standard error. $\begingroup$ (OP) it's for a meta-analysis. Let's say I have 10 hazard ratio. 8 of them are global HR from 8 differents studies. The last 2 are from the same study. I can't use the global HR because there's one category of more comparatively of the others studies. $\endgroup$ – user6101 Aug 31 '11 at 18:36 Stata has a comprehensive set of user-written commands to perform meta-analysis of studies with (i) binary outcomes i.e. relative risk, odds ratio; (ii) continuous outcomes i.e. mean differences. chosen meta-analysis model; see Meta-analysis models. Also see[META] meta esize for how to compute various effect sizes in a meta-analysis. Meta-analysis models. Another important consideration for meta-analysis is that of the underlying model. Three commonly used models are a common-effect, fixed-effects, and random-effects models. Hi Everyone, I am conducting a meta-analysis on 11 longitudinal population-based studies. I ran my meta-analysis using metan function. However, for meta-regression analysis and/or funnel plot, I need SE associated with Effect sizes (here lnHazrd ratio). Definition of systematic review and meta-analysis. The risk ratio and the odds ratio are relative measures, and as such they are relatively insensitive to the number of baseline events. Palmer, T. M. and Sterne, J. A. C. (2009). Meta-Analysis in Stata: An Updated Collection from the Stata Journal, Second Edition. Stata Press: College
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