[R-meta] margins command

Dear all,

I?m adjusting a simple metaregression model:

meta <- rma(yi = yi,
              sei = vi,
              mods = ~ risk1 + risk2,
              data = data1,
              method = "REML")

Both risk1 and risk2 are binary factors.

Is it possible to estimate a confidence interval for a function of the
fitted coefficients, let's say beta[1]+beta[2]?

Also, is there a command like the "margins" to have marginal effects
summaries?

Thanks in advance for any help,

Patricia

Patricia Klarmann Ziegelmann
Department of Statistics
Graduate Program in Epidemiology
Universidade Federal do Rio Grande do Sul (UFRGS)
http://lattes.cnpq.br/8486215358933890
Av. Bento Gon?alves, 9500 - Pr?dio 43-111 - Agronomia
91509-900 Porto Alegre - RS - BRAZIL

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