meta (version 5.1-1)

amlodipine: Amlodipine for Work Capacity

Description

Meta-analysis on the effect of amlodipine on work capacity.

This meta-analysis is used as a data example in Hartung and Knapp (2001).

Format

A data frame with the following columns:

study	study label
n.amlo	number of observations in amlodipine group
mean.amlo	estimated mean in amlodipine group
var.amlo	variance in amlodipine group
n.plac	number of observations in placebo group
mean.plac	estimated mean in placebo group

See Also

metacont

Examples

# NOT RUN {
data(amlodipine)

m <- metacont(n.amlo, mean.amlo, sqrt(var.amlo),
              n.plac, mean.plac, sqrt(var.plac),
              data = amlodipine, studlab = study)
m.hakn <- update(m, hakn = TRUE)

# Same results for mean difference as in Table III in Hartung and
# Knapp (2001)
#
vars.fixed <- c("TE.fixed", "lower.fixed", "upper.fixed")
vars.random <- c("TE.random", "lower.random", "upper.random")
#
res.fixed <- as.data.frame(m[vars.fixed])
names(res.fixed) <- vars.random
#
res.md <- rbind(res.fixed,
                as.data.frame(m[vars.random]),
                as.data.frame(m.hakn[vars.random]))
#
res.md <- round(res.md, 5)
#
row.names(res.md) <- c("FE", "RE", "RE (HaKn)")
names(res.md) <- c("Absolute difference", "CI lower", "CI upper")
#
res.md
# }