Beat the Blues Data
Data from a clinical trial of an interactive multimedia program called ‘Beat the Blues’.
data("BtheB")A data frame with 100 observations of 100 patients on the following 8 variables.
did the patient take anti-depressant
drugs (No or Yes).
the length of the current episode of depression,
a factor with levels <6m (less than six months) and
>6m (more than six months).
treatment group,
a factor with levels TAU (treatment as usual)
and BtheB (Beat the Blues)
Beck Depression Inventory II before treatment.
Beck Depression Inventory II after two months.
Beck Depression Inventory II after four months.
Beck Depression Inventory II after six months.
Beck Depression Inventory II after eight months.
Longitudinal data from a clinical trial of an interactive, multimedia program known as "Beat the Blues" designed to deliver cognitive behavioural therapy to depressed patients via a computer terminal. Patients with depression recruited in primary care were randomised to either the Beating the Blues program, or to "Treatment as Usual (TAU)".
Note that the data are stored in the wide form, i.e., repeated measurments are represented by additional columns in the data frame.
J. Proudfoot, D. Goldberg and A. Mann (2003). Computerised, interactive, multimedia CBT reduced anxiety and depression in general practice: A RCT. Psychological Medicine, 33, 217–227.
data("BtheB", package = "HSAUR")
layout(matrix(1:2, nrow = 1))
ylim <- range(BtheB[,grep("bdi", names(BtheB))], na.rm = TRUE)
boxplot(subset(BtheB, treatment == "TAU")[,grep("bdi", names(BtheB))],
main = "Treated as usual", ylab = "BDI",
xlab = "Time (in months)", names = c(0, 2, 4, 6, 8), ylim = ylim)
boxplot(subset(BtheB, treatment == "BtheB")[,grep("bdi", names(BtheB))],
main = "Beat the Blues", ylab = "BDI", xlab = "Time (in months)",
names = c(0, 2, 4, 6, 8), ylim = ylim)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.