| 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.
None, <10, 10-20
and >20 (cigarettes per day).Alzheimer's, Other
dementias and Other diagnoses.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)