Qaqish
The data set provides the odds ratios and correlations as measures of associations of the binary outcome impaired pulmonary function for a family of four with two parents and two siblings.
These correlations and odds ratios are obtained from Qaqish et al. (2012) based on a regression analysis of a common data set of parents and siblings with chronic obstructive pulmonary disease and their controls.
data(Qaqish)
A list Qaqish containing 2 elements:
cr : the correlation matrix;
or : the odd ratios matrix.
Qaqish, B. F., Zink, R. C., and Preisser, J. S. (2012). Orthogonalized residuals for estimation of marginally specified association parameters in multivariate binary data. Scandinavian Journal of Statistics 39, 515-527.
data(Qaqish) print(Qaqish$or) print(Qaqish$cr)
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