Questions tagged [forest-plot]

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3 votes
1 answer
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Forest plot to show results in a observational restrospective cohort study

I have to present my study as a poster and, in order to make my results more visual, I thought it was a good idea to report them as a forest plot. However, it is ok to use a forest plot to report the ...
user406570's user avatar
5 votes
2 answers
91 views

How can I calculate the weight of a study for meta-analysis?

I'm tasked with producing a forest plot for a meta-analysis but I've only been given the risk ratio, sample size and confidence intervals of the necessary studies. I think that I have to find the SE ...
user356816's user avatar
1 vote
0 answers
79 views

How do I get the correct forestplot with each variable with its categories, indicating the reference variable and the values of those that are not

When doing the Coxph analysis with the variables selected from an excel file, it gives a numerical result indicating the HR of each one of them according to the reference one. However, when I ...
user392262's user avatar
1 vote
1 answer
146 views

Forest plot for meta-analysis of continous outcome displaying the mean ES with and without outliers

I am conducting a meta-analysis and am trying to produce a forest plot displaying the mean weighted effect size with and without the outliers. I looked on so many websites and tried a lot of syntaxes, ...
Ishtiaq Ahmed's user avatar
3 votes
1 answer
70 views

Meta-Analysis: Summarizing several effects of a study

I am currently conducting a meta-analysis looking at a rather global effect. Therefore, some of the included studies report several effects which can be included. As far as I read in the literature, ...
Maria's user avatar
  • 61
1 vote
0 answers
534 views

Creating a forest plot separated by outcome from a multivariate meta-analysis using metafor

I'm struggling to create a forest plot that separates the average effects by outcome. I ran a multivariate mixed effects meta-analysis with 6 outcomes, with 49 studies (some studies have effect sizes ...
mld's user avatar
  • 11
0 votes
1 answer
141 views

Comparing Cohen's D and Arcsine Transformation in Meta-analysis

I'm conducting a meta-analysis that consists of 15 studies and ~40 construct effect sizes. Most of the constructs and studies use continuous variables and were straightforward in finding standardized ...
Elyssa S's user avatar
0 votes
0 answers
776 views

Scale of X axis in forest plot

The question is very simple. For the help file of the meta package, let's consider this forest plot: ...
user89547235's user avatar
2 votes
0 answers
92 views

Meta-analysis with rma() in metafor

I am working on a meta-analysis that has two moderator variables. Below is the code that I've figured out, but I'm not sure how to get the forest plot to show the overall model estimate. It's ...
john connor's user avatar
0 votes
1 answer
456 views

Is there an equivalent to a Forest Plot that does not use an Odds Ratio?

I am performing a meta-analysis. Most of my data does not have an odds ratio with a Confidence Interval. The majority of the studies I have included in my meta-analysis only have a p-value for a ...
Blake Harp's user avatar
1 vote
2 answers
836 views

Univariate cox regression in many subgroups (subsets) in R

I'm trying to perform univariate cox regression in many different subsets of my data frame. In order to give you a good example, I'll use here the colon dataset as a model. ...
Allan's user avatar
  • 111
1 vote
0 answers
369 views

How to get 'overall' numbers in forest plot in meta analysis using STATA [closed]

I am trying to perform a meta-analysis. I put together the data, and I am creating a forest plot. I have several questions regarding how I can change the figure created by STATA. 1- After the studies ...
Mcqueen11's user avatar
1 vote
0 answers
557 views

Presenting raw hazard ratios, not log(hazard ratio), in forest plot for meta-analysis using metafor

I'm trying to perform a meta-analysis in R with metafor of trials for which the hazard ratios(HR) and 95% CI are available as outcomes. I am aware that I have to use log(HR) for calculation, but I ...
Sam's user avatar
  • 11
2 votes
1 answer
3k views

Combining Forest Plots in One Plot [closed]

I am trying to combine 4 forest plots into 1 matrix type plot output with 2 columns and 2 rows. I have tried grid.arrange multiple times but I continue to get "only grobs allowed in list." ...
samantha_faith's user avatar
0 votes
0 answers
348 views

Problems with plotting extremely wide confidence interval for odds ratio

I am having problems with preparing the forest plot for the logistic regression. I am comparing the effect of 3 treatments of complications. Here is the code that reproduces this: ...
Oleg's user avatar
  • 661
1 vote
0 answers
199 views

Meta Analysis of Change From Baseline (Missing the final standard deviation)

I am currently doing a meta-analysis and some of my studies only include the baseline standard deviation and the change from baseline standard deviation. EDIT 2 The Cochrane handbook for meta-analyses ...
samantha_faith's user avatar
3 votes
1 answer
1k views

Best practice for presenting odds ratios when variables are on different scales

I have a logistic regression in which most of the predictors are binary, but two are continuous (e.g., age). I am planning to use a simple forest plot to visualise the odds ratios for readers. However,...
Gabriel's user avatar
  • 743
0 votes
1 answer
1k views

How to use 'sortvar' while generating forest plots using meta in R? [closed]

I am running into an error if I attempt to sort forest plot output by my outcome values using sortvar. If I just enter the outcome variable name, I get ...
Modhurima Moitra's user avatar
0 votes
2 answers
51 views

large odds ratios combined with smaller ones in 1 figure

for a study i want to investigate which clinical symptoms of a patient, lead to the doctor stating a certain diagnosis (eg epilepsy). Ater using logistic regression to calculate the OR and 95% CI, I ...
user14092224's user avatar
1 vote
0 answers
479 views

How to use only one reference for forest plot

I would like to generate a forest plot, but I have a problem with the wrong reference groups: The plot contains multiple reference elements because, I assume, the model is calculating the differences ...
flavinsky's user avatar
  • 111
1 vote
0 answers
191 views

standardized mean difference including between and within subject designs

I am in the process of drafting a meta-analysis for a research project. The document makes use of a forest plot (random-effects model) that depicts the standardized mean difference of each study along ...
user291535's user avatar
2 votes
1 answer
1k views

Is there a way to create the forestplot in R metafor, which presents only subgroup summaries (no individual studies)?

Is there a way to create the forestplot in R metafor forest(), which presents only subgroup summaries (no individual studies)? ...
Adam Rybak's user avatar
2 votes
1 answer
613 views

Is it possible in a forest plot all negative confidence intervals sum to a positive range,? [closed]

For example in that case, all confidence intervals are negative BUT the sum is in positive range (-37.62 to 0.5), which I don't understand. If there is anybody knows the explanation I would be ...
Gulsah Atasever's user avatar
2 votes
2 answers
215 views

Why does my forest plot say a study's result is statistically significant when it's not?

A large amount of computing resources is required to compute exact probabilities for the Kruskal–Wallis test. Existing software only provides exact probabilities for sample sizes less than about 30 ...
R949's user avatar
  • 31
1 vote
1 answer
2k views

Alternative visualisation to forest plot for large dataset of effect sizes in R

I have a data set of ~700 studies with response variables. Currently to view a forest plot of the data looks like . If I use forest(dat$yi[1:100], dat$vi[1:100]) I ...
sleepy's user avatar
  • 80
2 votes
1 answer
2k views

Choice of box size and weights for a forest plot from random effects meta-analysis

I am doing a random-effects meta-analysis where the variable is measured in standardized mean differences. The actual measures vary, but are related to drug use in rats and control vs. treatment. I ...
Peter Flom's user avatar
  • 120k