polyps3 {HSAUR} | R Documentation |
Data from a placebo-controlled trial of a non-steroidal anti-inflammatory drug in the treatment of familial andenomatous polyposis (FAP).
data("polyps3")
A data frame with 22 observations on the following 5 variables.
sex
female
and male
.treatment
placebo
and active
.baseline
age
number3m
The data arise from the same study as the polyps
data. Here,
the number of polyps after three months are given.
F. M. Giardiello, S. R. Hamilton, A. J. Krush, S. Piantadosi, L. M. Hylind, P. Celano, S. V. Booker, C. R. Robinson and G. J. A. Offerhaus (1993), Treatment of colonic and rectal adenomas with sulindac in familial adenomatous polyposis. New England Journal of Medicine, 328(18), 1313–1316.
S. Piantadosi (1997), Clinical Trials: A Methodologic Perspective. John Wiley & Sons, New York.
data("polyps3", package = "HSAUR") plot(number3m ~ age, data = polyps3, pch = as.numeric(polyps3$treatment)) legend("topright", legend = levels(polyps3$treatment), pch = 1:2, bty = "n")