Guo, Jianhua; Geng, Zhi; Fung, Wing-Kam - In: Journal of Multivariate Analysis 79 (2001) 1, pp. 89-98
G. R. Ducharme and Y. Lepage (1986, J. Roy. Statist. Soc. Ser. B48, 197-205) presented the strong collapsibility of odds ratio in 22K tables. However, the concept is not suitable for an ordinal background variable since it is meaningless to pool nonadjacent levels in this case. In this paper, we...
