cidprop.meta | R Documentation |
Calculate expected proportion of comparable studies with clinically important benefit or harm which is derived from the prediction interval.
## S3 method for class 'meta'
cidprop(
x,
cid = NULL,
cid.below.null = NULL,
cid.above.null = NULL,
label.cid = "",
label.cid.below.null = NULL,
label.cid.above.null = NULL,
small.values = "desirable",
...
)
cidprop(x, ...)
## S3 method for class 'cidprop'
print(
x,
digits.cid = gs("digits.cid"),
digits.percent = 1,
big.mark = gs("big.mark"),
details.methods = gs("details"),
...
)
x |
An object of class |
cid |
A numeric value or vector specifying clinically important differences (CID) / decision thresholds used to calculate expected proportions of clinically important benefit or harm (see Details). |
cid.below.null |
A numeric value or vector specifying CID limits below the null effect (see Details). |
cid.above.null |
A numeric value or vector specifying CID limits above the null effect (see Details). |
label.cid |
A character string or vector specifying labels for
clinically important differences. Must be of same length as argument
|
label.cid.below.null |
A character string or vector specifying labels
for clinically important differences below the null effect. Must be of
same length as argument |
label.cid.above.null |
A character string or vector specifying labels
for clinically important differences above the null effect. Must be of
same length as argument |
small.values |
A character string specifying whether small
treatment effects indicate a beneficial ( |
... |
Additional arguments (ignored) |
digits.cid |
Minimal number of significant digits for
CIDs / decision thresholds, see |
digits.percent |
Minimal number of significant digits for
expected proportions, printed as percentages, see |
big.mark |
A character used as thousands separator. |
details.methods |
A logical specifying whether details on statistical methods should be printed. |
Expected proportions of comparable studies with clinically important benefit or harm are derived from the prediction interval in the meta-analysis.
Clinically important benefit or harm can be defined using either argument
cid
or cid.below.null
and cid.above.null
.
Input for the later arguments will be ignored if argument cid
was
specified. In this case, the values of cid.below.null
and
cid.above.null
will be equal to
cid
and 1 / cid
for ratio measures,
cid
and -cid
for difference measures.
Thresholds based on argument cid
will always be symmetric. Asymmetric
thresholds can be defined using arguments cid.below.null
and
cid.above.null
.
A list with elements
prop.cid.below.null |
Expected proportion of comparable studies below lower CID(s) |
prop.cid.above.null |
Expected proportion of comparable studies above upper CID(s) |
prop.within.cid |
Expected proportion of comparable studies between lower and upper CID(s) |
cid , cid.below.null , cid.above.null , small.values , x |
As defined above |
label.cid , label.cid.below.null , label.cid.above.null |
As defined above |
Guido Schwarzer guido.schwarzer@uniklinik-freiburg.de
plot.cidprop
oldset <- settings.meta(digits.cid = 0)
m <- metagen(1:10 - 3, 1:10, sm = "MD")
#
pp1 <- cidprop(m, cid = 2)
pp1
#
pp2 <- cidprop(m, cid.below = 0.5, cid.above = 2)
pp2
#
pp3 <- cidprop(m, cid.below = 0.5, cid.above = 2, small.values = "u")
pp3
pp4 <- cidprop(m, cid = 1:2, label.cid = c("moderate", "large"))
pp4
#
pp5 <- cidprop(m, cid.below = -1.5, cid.above = 1:2,
label.cid.below = "large", label.cid.above = c("moderate", "large"))
pp5
settings.meta(oldset)
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