write.TTD: Write in a csv file the results of the time to deterioration...
In QoLR: Analysis of Health-Related Quality of Life in Oncology

Description Usage Arguments Value Author(s) See Also Examples

A program that computes the time to deterioration in a quality of life score and print the results in a csv file according to treatment arm

1 2	write.TTD(X, score = "", order = 1, ref.init = "baseline", MCID, death = NA, group = NULL, names.group, sensitivity = TRUE, file = "")

`X`	input data matrix or data frame with a quality of life score. Missing values are inserted as NA
`score`	vector with the name of the quality of life scores of interest
`order`	a vector equals to 1 if the deterioration corresponds to a decrease of the score, 2 otherwise
`ref.init`	the reference score to qualify the deterioration. By default, `ref.init` is `"baseline"`, i.e. the reference score is the baseline score. If `ref.init` is `"best"`, the best previous quality of life score is the reference score. If `ref.init` is `"previous"`, the last previous score is the reference score.
`MCID`	vector equals to the minimal clinically important difference (MCID). Several MCID can be specified
`death`	missing if patients who died without experienced a deterioration are censored at the time of the last quality of life assessment, equals to the name of the death date in the dataframe `X` otherwise
`group`	the name of the variable in `X` corresponding to the treatment arm. Only two groups are allowed
`names.group`	the name of each treatment group to print
`sensitivity`	Boolean equals to `TRUE` by default. If `sensitivity` is `TRUE`, then all sensitivity analyses are performed, integrating patients with no baseline or with no follow up as event, death as event and simultaneously no baseline, no follow and death
`file`	the name of the csv file to create with the results of the time to deterioration analysis

this function does not return value in R console but creates a csv file with the results of the time to deterioration analysis

Amelie ANOTA

Maintainer: Amelie ANOTA <aanota@chu-besancon.fr>

TTD

### The time to deterioration of scores "QoL" and "pain" of the dataqol2 data
### set as compared to the baseline score
### with two MCID (5 points and 10 points)
### and according to the treatment arm called "arm"
### all sensitivity analyses are performed simultaneously to the main definition
### the created file is named "file_TTD_baseline.csv" and is located 
### in the current directory                             
                                 
#data(dataqol2)
#write.TTD(dataqol2,score=c("QoL","pain"),order=c(1,2),MCID=c(5,10),
#group="arm",names.group=c("arm 1","arm 2"),sensitivity=FALSE,
#file="file_TTD_baseline")