Description Usage Arguments Details Value References Examples
An abridged five-item version of the 15-item International Index of Erectile Function (IIEF) was developed (IIEF-5) to diagnose the presence and severity of erectile dysfunction (ED). (Rosen et al. 2000)
1 | scoring_iief5(data, items = 1:5, keep = TRUE, nvalid = 5, digits = NULL)
|
data |
a |
items |
A character vector with the IIEF-5 item names ordered from 1 to 5,
or a numeric vector indicating the column numbers of the IIEF-5 items in |
keep |
Logical, whether to keep the single items and whether to return variables containing the number of non-missing items on each scale for each respondent. The default is TRUE. |
nvalid |
A numeric value indicating the number of non-missing items required for score calculations. The default is 5. |
digits |
Integer of length one: value to round to. No rounding by default. |
Number of items:
5
Item range:
1 to 5
Reverse items:
none
Score range:
1 to 25
Cut-off-values:
1-7 = 'Severe ED'; 8-11 = 'Moderate ED'; 12-16 = 'Mild-moderate ED';
17-21 = 'Mild ED'; 22-25 = 'No ED'
Minimal clinically important difference:
none
Treatment of missing values:
No missing values allowed for score calculation
The function returns 3 variables:
nvalid.iief5:
Number of valid values (MAX=5)
score.iief5:
IIEF-5 Score
cutoff.iief5:
IIEF-5 Cut-Off
Link to questionnaire (http://www.croesoffice.org/Portals/0/Short_IIEF.pdf)
Rosen RC, Cappelleri JC (2000) (https://doi.org/10.1038/sj.ijir.3900472)
1 2 3 4 5 6 | ## Not run:
library(dplyr)
items.iief5 <- paste0("IIEF_", seq(1, 5, 1))
scoring_iief5(mydata, items = items.iief5)
## End(Not run)
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