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6 results for “from:Olina Ngwenya”

[R-meta] Dealing with missing data in bivariate analysis
Olina Ngwenya · Mar 28, 2022 · r-sig-meta-analysis

Dear R-sig-meta-analysts I have been doing bivariate meta-analysis using rma.mv(), but one of my outcomes has missing values and I am getting this message "Rows with NAs omitted from model fitting". My question is "Do...

[R-meta] Calculating odds ratios in bivariate meta-analysis.
Olina Ngwenya · Mar 20, 2022 · r-sig-meta-analysis

Hello R-sig-meta-analysis folks, I am doing a random effects multivariate model (bivariate) for binary outcomes, pregnancy and live birth (similar to this analysis: https://www.metafor-project.org/doku.php/analyses:berkey1998, the difference is that berkey1998...

[R-meta] Calculating odds ratios in bivariate meta-analysis.
Olina Ngwenya · Mar 21, 2022 · r-sig-meta-analysis

Dear Wolfgang Thank you for your response. I felt like the escalc() with measure ="OR" , is used for univariate meta-analysis and I thought there is another function used to calculate odds ratios in bivariate/multivariate meta-analysis. Regards Olina...

[R-meta] Dealing with missing data in bivariate analysis
Olina Ngwenya · Mar 28, 2022 · r-sig-meta-analysis

Thank you Wolfgang. Regards Olina -----Original Message----- From: Viechtbauer, Wolfgang (SP) <wolfgang.viechtbauer at maastrichtuniversity.nl> Sent: 28 March 2022 11:06 To: Olina Ngwenya <olina.ngwenya at manchester.ac.uk>; r-sig-meta-analysis at r-project.org Subject...

[R-meta] Calculating odds ratios in bivariate meta-analysis.
Olina Ngwenya · Mar 21, 2022 · r-sig-meta-analysis

Thank you Wolfgang, well understood. Regards Olina -----Original Message----- From: Viechtbauer, Wolfgang (SP) <wolfgang.viechtbauer at maastrichtuniversity.nl> Sent: 21 March 2022 10:54 To: Olina Ngwenya <olina.ngwenya at manchester.ac.uk> Cc: r-sig-meta-analysis at r...

[R-meta] Dealing with missing data in bivariate analysis
Olina Ngwenya · Mar 29, 2022 · r-sig-meta-analysis

Thank you Lukasz. -----Original Message----- From: Lukasz Stasielowicz <lukasz.stasielowicz at uni-osnabrueck.de> Sent: 28 March 2022 18:33 To: r-sig-meta-analysis at r-project.org; Olina Ngwenya <olina.ngwenya at manchester.ac.uk> Subject: Re: Dealing...

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