Meta-Analysis in R with {metafor}

[@Featherlicht]

One of the most useful videos that exists on the internet. Thank you for this.

[@elizabethpalu2447]

Very grateful for the historical background. Very useful for me to understand the thoughts behind the packages! thank you

[@fowobajek]

Just what I have been looking for !. Thanks a lot.

[@mkklindhardt]

Very educational and still very high-level. Is there guiding videos/screencasts on meta-analysis with different types of response variables, modulators and outcomes? Perhaps covering the considerations of multivariate and multilevel meta-analysis as well as composite outcome meta-analyses, such as the concept of "borrowing of strength" (BoS) in meta-analysis where one has to deal with multiple outcomes (response variables) or studies with small sample sizes. Thank you

[@miladmirmoghtadaei5038]

Very straight forward and easy to follow. Helped a lot.

[@hesamghiasvand1643]

So insightful and applicable. Many thanks. Also would be very grateful if you could provide such videos for Network Meta-Analysis. Thanks.

[@UseROslo]

There are no such talks planned at the moment, but will keep the topic in mind.

[@fabiocarbone5342]

Thank you very much, very insightful lesson. Could you please tell me where I can also find a lesson or some material on meta-analysis of survival data (Hazard Ratios). It would really help. Thanks

[@juiceorca7528]

Very useful, good video!

[@_inspirationandmotivation]

Thank you!:)

[@klaows]

Thank you, What's Ablat? How could I get Ablat?

[@Kris-xy3kh]

Thank you for this video! Do you have any advice on how to organzie data when doing the extracting from studies? Do you use excel or something? I want to do a meta analysis on low birth weight and mental health, but there are sooo many different tests for mental health that I cant think out a smart way to organize it in excel.

[@UseROslo]

Hi, this channel only focuses on publishing content from the UseR Oslo group. For specific questions about the content, we encourage you to contact the speaker or relevant forums.

[@kadoor2701]

Thank you sir

[@lisakaly6371]

Thank you for you great video. For a Meta-analysis on longitudinal studies , does it make any difference in the statistical test I use? thank you for your answer

[@UseROslo]

This channel is only intended for publishing Oslo UseR meetups. For your question you should check out relevant forums, or see www.metafor-project.org/doku.php

[@mohamedafifi2796]

U r the best!!!!!!

[@chrisli5373]

GREAT talks! But could u pls update the code download website? The one provided above may be not available not. Thank U!

[@affectionlifeaffliction]

SAME!

[@UseROslo]

Contacted the speaker. The link will be updated as soon as we have it.

[@chrisli5373]

@@UseROslo THANK YOU!

[@UseROslo]

The link is now updated

[@chrisli5373]

@@UseROslo So amazing! Great thanks!

[@klaows]

Why we need to use absolute latitude? Can I change to other variables?

[@UseROslo]

Hi, this channel only focuses on publishing content from the UseR Oslo group. For specific questions about the content, we encourage you to contact the speaker or relevant forums.

[@yousif_alyousifi]

How to change the font style of part of a string in forestplot? Specifically, I want to italicize the text (ABCX (rs1111111-X)), which is the name of one of the columns.

[@UseROslo]

Hi Yousif, I can't find anything in the metafor documentation that allows you to do that. I would recommend you check out relevant forums for metafor, or contact the package creator.

[@SwedishRagers]

Is it possible to forest plot odds ratios when only given the ratio and upper and lower limits? Since many studies plainly list their OR with 95%CI and p value without reporting the samples sizes. I cannot seem to find any videos regarding this and would greatly appreciate some advice.

[@UseROslo]

Hi Samuel. I recommend that you check the relevant forums for metafor. Wolfgang's website might be a good place to start: www.metafor-project.org/

[@SwedishRagers]

@@UseROslo Thank you very much for the timely response. And for all your quality content. We all greatly appreciated it!

[@ogbucharles4539]

Hi, I am struggling to run a metanalysis. It is my first time. I have continuous data with mean, sample size, and standard deviation for each study (without means for control and exposure groups.) Any ideas on the appropriate argument suitable for this type of data?

[@UseROslo]

Hi, this is outside of our scope of knowledge, as the channel is run by the Oslo UseR organizers, and the individual speakers do not moderate the recordings we upload. Please refer to relevant forums or metafor's own webpage, www.metafor-project.org/

[@littleheavenonearth86]

Is there any program or application that can conduct multilevel metaanalysis by just entering the data?

[@UseROslo]

I recommend you contact the speaker with his matter, as I do not know the answer.

[@umarhussain5957]

Sir do you have any book on metaanalysis in R

[@UseROslo]

This channel is maintained by the Oslo UseR team, and not the presenter unfortunately. We recommend you to contact the speaker directly for specific inquires. That said, the book "Doing Meta-Analysis with R - A Hands-On Guide " might be suitable for you. (bookdown.org/MathiasHarrer/Doing_Meta_Analysis_in_R/)

[@UseROslo]

Another option in 'Introduction to Meta-Analysis' by Borenstein et al. (2009). Wolfgang has made the R code available for all the examples: wviechtb.github.io/meta_analysis_books/borenstein2009.html

[@mohsuprayogi2416]

what is ablat stands for?

[@UseROslo]

Hi, I am a bit unsure where exactly it is referenced. Could you provide a timestamp?

[@mohsuprayogi2416]

It is 23:39. in the dataframe, the column ablat refers to what?

[@UseROslo]

"ablat numeric absolute latitude where the study was conducted" You can see more info here: www.rdocumentation.org/packages/metafor/versions/0.5-5/topics/dat.bcg

[@mohsuprayogi2416]

@@UseROslo thankyou very much for the explanation. I'm looking forward to your next video explaining more test in R