brms (version 2.9.0)

kidney: Infections in kidney patients

Description

This dataset, originally discussed in McGilchrist and Aisbett (1991), describes the first and second (possibly right censored) recurrence time of infection in kidney patients using portable dialysis equipment. In addition, information on the risk variables age, sex and disease type is provided.

Usage

kidney

Format

A data frame of 76 observations containing information on the following 7 variables.

time

The time to first or second recurrence of the infection, or the time of censoring

recur

A factor of levels 1 or 2 indicating if the infection recurred for the first or second time for this patient

censored

Either 0 or 1, where 0 indicates no censoring of recurrence time and 1 indicates right censoring

patient

The patient number

age

The age of the patient

sex

The sex of the patient

disease

A factor of levels other, GN, AN, and PKD specifying the type of disease

Examples

# NOT RUN {
## performing surivival analysis using the "weibull" family
fit1 <- brm(time | cens(censored) ~ age + sex + disease, 
            data = kidney, family = weibull, inits = "0")
summary(fit1) 
plot(fit1)

## adding random intercepts over patients
fit2 <- brm(time | cens(censored) ~ age + sex + disease + (1|patient), 
            data = kidney, family = weibull(), inits = "0",
            prior = set_prior("cauchy(0,2)", class = "sd"))
summary(fit2) 
plot(fit2)         
# }
# NOT RUN {
# }