alzheimer {coin} | R Documentation |
A case-control study of smoking and Alzheimer's disease.
data("alzheimer")
A data frame with 538 observations on the following 3 variables.
a factor at levels None
, <10
, 10-20
and >20
(cigarettes per day).
a factor at levels Alzheimer
, Other dementias
and Other diagnoses
.
a factor at levels Female
and Male
.
198 cases of Alzheimer's disease are compared to a control group with respect to smoking history. The data are published in Table 4 (Salib \& Hillier, 1997).
Emad Salib \& Valerie Hillier (1997). A case-control study of smoking and Alzheimer's disease, International Journal of Geriatric Psychiatry 12, 295–300.
Torsten Hothorn, Kurt Hornik, Mark A. van de Wiel \& Achim Zeileis (2006). A Lego system for conditional inference, The American Statistician, 60(3), 257–263.
### spineplots layout(matrix(1:2, ncol = 2)) spineplot(disease ~ smoking, data = alzheimer, subset = gender == "Male", main = "Male") spineplot(disease ~ smoking, data = alzheimer, subset = gender == "Female", main = "Female") ### Cochran-Mantel-Haenszel test cmh_test(disease ~ smoking | gender, data = alzheimer)