Re: [R] metafor and meta-analysis at arm-level

-help@r-project.org Subject: RE: [R] metafor and meta-analysis at arm-level Hello Wolfgang. I'd appreciate if you could help me check whether I am doing the proper thing to do an arm-level meta-analysis with metafor and what differences there might be in trying to do the same with lme and lm. I

Re: [R] metafor and meta-analysis at arm-level

] metafor and meta-analysis at arm-level Hello Wolfgang. I'd appreciate if you could help me check whether I am doing the proper thing to do an arm-level meta-analysis with metafor and what differences there might be in trying to do the same with lme and lm. I am following the arm based model

Re: [R] metafor and meta-analysis at arm-level

: 'Angelo Franchini'; r-help@r-project.org Subject: RE: [R] metafor and meta-analysis at arm-level Hello Wolfgang. I'd appreciate if you could help me check whether I am doing the proper thing to do an arm-level meta-analysis with metafor and what differences there might be in trying to do

Re: [R] metafor and meta-analysis at arm-level

-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Angelo Franchini Sent: Tuesday, July 06, 2010 10:37 To: Wolfgang Viechtbauer Cc: r-help@r-project.org; Angelo Franchini Subject: Re: [R] metafor and meta-analysis at arm-level Hello Wolfgang, Thank you very much for your

Re: [R] metafor and meta-analysis at arm-level

To: Wolfgang Viechtbauer Cc: r-help@r-project.org; Angelo Franchini Subject: Re: [R] metafor and meta-analysis at arm-level Hello Wolfgang, Thank you very much for your response. When you mentionthe appropriate design matrix, do you mean by that the 'n1i, n2i, m1i, m2i, sd1i, sd2i' arguments

Re: [R] metafor and meta-analysis at arm-level

Hello Wolfgang, Thank you very much for your response. When you mentionthe appropriate design matrix, do you mean by that the 'n1i, n2i, m1i, m2i, sd1i, sd2i' arguments of the rma function, or am I missing something? I read the documentation on metafor (introduction), rma/rma.uni and escalc, and

Re: [R] metafor and meta-analysis at arm-level

Hello Angelo, You can either supply the arm-level outcomes and corresponding sampling variances directly (via the yi and vi arguments) or supply the necessary information so that the escalc() or rma() functions can calculate an appropriate arm-level outcome (such as the log odds). See the

[R] metafor and meta-analysis at arm-level

Hi, I have been looking for an R package which allowed to do meta-analysis (both pairwise and network/mixed-treatment) at arm-level rather than at trial-level, the latter being the common way in which meta-analysis is done. By arm-level meta-analysis I mean one that accounts for data provided at