Variables:
This data frame has 220 rows and the following columns:
-
y
-
presence or absence: a factor with levels n and y.
-
ap
-
active/placebo: a factor with levels a and p.
-
hilo
-
hi/low compliance: a factor with levels hi amd lo.
-
week
-
numeric: week of test.
-
ID
-
subject ID: a factor.
-
trt
-
a factor with levels placebo, drug and drug+, a re-coding of ap and hilo.
Details
Dr A. Leach tested the effects of a drug on 50 children with a history of otitis media in the Northern Territory of Australia. The children were randomized to the drug or the a placebo, and also to receive active encouragement to comply with taking the drug.
The presence of H. influenzae was checked at weeks 0, 2, 4, 6 and 11: 30 of the checks were missing and are not included in this data frame.