Pedro, bom dia! Eu não tenho domínio desses pacotes, mas dei uma olhada e consegui alguma coisa... Acredito que você possa melhorar a partir dos comandos abaixo. Caso consiga, peço que poste a solução! Pra remover as bordas é só comentar grid.rect(). ### <code r> if (!require("meta")) {install.packages("meta", dep=T); require("meta")} b <- structure(list(ID2 = c("Lorca M-1992", "Carvalho MR-1993", "Hamerschlak N-1997","Oeleman WMR-1998", "Cabalero ZC-2007", "Otani MM-2009", "Otani MM-2009", "Remesar MC-2009", "Anes N-2010", "Flores Chaves M-2010"), VP = c(77, 224, 20, 515, 68, 167, 167, 340, 19, 66), VN = c(98, 182, 36, 481, 225, 257, 261, 1097, 15, 132), with = c(82, 224, 20, 539, 69, 168, 168, 356, 23, 66), without = c(98, 191, 40, 486, 238, 262, 262, 1099, 15, 157), group = c("ABBOTT-ABBOTT CHAGAS ELISA", "ABBOTT-ABBOTT CHAGAS ELISA", "ABBOTT-ABBOTT CHAGAS ELISA", "ABBOTT-ABBOTT CHAGAS ELISA", "BIOSCHILE-TEST ELISA CHAGAS", "ABBOTT-ABBOTT CHAGAS ELISA", "BIOSCHILE-TEST ELISA CHAGAS", "BIOSCHILE-TEST ELISA CHAGAS", "BIOSCHILE-TEST ELISA CHAGAS", "BIOSCHILE-TEST ELISA CHAGAS")), .Names = c("ID2","VP", "VN", "with", "without", "group"), row.names = c(50L, 42L,69L, 60L, 37L, 113L, 111L, 124L, 97L, 102L), class = "data.frame") b$Q47="ELISA" m.e.se <- metaprop(VP, with, studlab=ID2 ,data=b,subset=Q47=="ELISA",incr=.1,allincr=T,addincr=T,comb.fixed=F,hakn=T,title="ELISA for Chagas disease",complab='With Chagas',outclab="True positives",byvar=group,bylab='Trademark-name',print.byvar=T) m.e.sp <- metaprop(VN, without, studlab=ID2 ,data=b,subset=Q47=="ELISA",incr=.1,allincr=T,addincr=T,comb.fixed=F,hakn=T,title="ELISA for Chagas disease",complab='With Chagas',outclab="True negatives",byvar=group,bylab='Trademark-name',print.byvar=T) require(grid) grid.newpage)() grid.show.layout(grid.layout(nrow = 1, ncol = 2, widths=unit(c(27,17), "cm"), heights=unit(18, "cm"))) vp0 <- viewport(layout=grid.layout(nrow = 1, ncol = 2, widths=unit(c(27,17), "cm"), heights=unit(18, "cm"))) pushViewport(vp0) grid.rect() grid.text(paste("texto", collapse="-")) pushViewport(viewport(layout.pos.col=1, layout.pos.row=1), clip="off") grid.rect() forest(new=F, m.e.se,overall=F,text.random="D&L random effects",pooled.events=T,xlab="Sensitivity",rightcols=F,leftcols=c("studlab", "event", "n","effect", "ci"),leftlabs=c("Study","TP","With","Sensitivity","95%-CI")) popViewport(1) pushViewport(viewport(layout.pos.col=2, layout.pos.row=1)) grid.rect() forest(new=F,m.e.sp,overall=F,text.random="D&L random effects",pooled.events=T,xlab="Specificity",rightcols=c("effect", "ci"),leftcols=c("n","event"),leftlabs=c("TN","Without"),rightlabs=c("Specificity","95%-CI")) popViewport(1) ### </code> [image: Imagem inline 2]
