Questions tagged [relative-risk]

The relative risk (also called 'risk ratio') is the quotient of the probabilities of an event under two conditions (ie, p1/p2). The RR has a possible range of [0, +infinity). It is a common measure of effect size in biomedical research.

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Kernel Density: How do the terms 'global' and 'pilot' translate?

I nearly most of the articles on kernel smoothing or concepts that use kernel density estimations, authors speak of 'pilot' and 'global'. https://link.springer.com/article/10.1023/A:1008925425102 &...
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calculating relative risks and odds ratio

How do I calculate : "cc":relative odds of preemployment testing only among non-marijuana users, "dd":relative odds of preemployment testing & random testing among marijuana ...
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for fun: can I estimate prevelance in a local population based on global exposure-outcome meta analyses?

I have the RR of miscarriage if exposed to moderate alcohol during pregnancy = 1.8. I have a small population where 7% is moderately exposed to alcohol during pregnancy. How can I ESTIMATE how many ...
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risk ratio and risk difference consistent?

how do you determine whether the results for risk difference and risk ratio are consistent? Risk difference = 0.02, 95% CI [-1.05, 0.1] Risk ratio = 1.1, 95% CI [0.82, 1.5] Study on whether or not ...
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Is there a good graphical representation for the sampling distribution of relative risk?

For pedagogical reasons, I am interested in communicating graphically the sampling distribution of relative risks (histogram and CDF plot), specifically in the context of a matched-pair study design: ...
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efficient frontiers are equal

I created 3 different efficient frontiers with 3 different risk factors(sharpe ratio, ulcer performance index and serenity ratio) and I wanted to find both MSR and GMV(and their equivalent for the ...
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What is the covariance between two log relative risks?

In a randomized experiment with two groups (treatment and control), suppose the response variable, $Y$, has 3 categories (0,1,2): $y_{0_{i}}$,$y_{1i}$ and $y_{2i}$, in which $i$ denotes the $i^{th}$ ...
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Relative risk trees (recursive partitioning for survival data) - node outcome

I am fitting relative risk trees for right-censored data (LeBlanc M. & Crowley J. Relative risk trees for censored survival data. Biometrics, pages 411–425, 1992) with rpart, but I have some ...
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convert the ATE Average Treatment Effect from a doubly robust model into Risk Ratio

How would one convert the ATE Average Treatment Effect from a doubly robust model into Risk Ratio? Can this be done directly without having to convert to odds ratio first. If so, how is this done. Can ...
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How/whether to adjust 95% CI for risk ratio with multiple comparisons?

I am evaluating the racial equity of a binary outcome, and we have landed on using risk ratios (RRs) for reporting differences between groups. The issue I am grappling with arises from the fact that ...
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Power analysis for relative risk equivalent to power analysis for difference between two proportions?

I need to make a power analysis calculation to estimate the minimum sample size for a relative risk statistic (ratio of two proportions) for unmatched data - two independent samples. Can I use the ...
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1 vote
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Interpretation of the E-value for non-epidemiologists

A recent method for sensitivity analysis is the E-value (VanderWeele and Ping, 2017). Yet, I'm still struggling with the interpretation of such a value. Coming from outside of epidemiology, where risk ...
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Metanalysis in R risk ratio compared to log risk ratio?

I have conducted a meta-analysis with the risk ratios and standard errors that have been provided to me. I cannot use the raw data. I was wondering if I should use the log of the risk ratio and the ...
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Paremater estimation in relative risk regression

While reading a study on leukaemia risk from ionizing radition, I am trying to understand how the model parameters are estimated. The outcome variable $y$ in this study is binary (leaukaemia or not), ...
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