title: Analysis of Data that is in the Form of Categories Part II: Beyond the 2*2 Contingency Table-Partitioning Chi-Square Tests.
abstract: This article extends the analysis of 2*2 tables considered in the preceding paper of this three-part series. The methods described in the previous paper for analysis of frequency counts of categorical variables in 2*2 tables, including overall tests, partitioned tests, odds ratios, and estimation of required sample size, are applied to tables with multiple levels, such as those with more than two response factors and/or more than two levels for each factor.
authors.affiliation: a LSU Medical Center , New Orleans , LA 70112 , USA.
authors.forename: R
authors.initials: R
authors.lastname: Mera
authors.affiliation: b Clinical Trials and Biometry Unit, LSU Eye Center , New Orleans , LA 70112 , USA.
authors.forename: H W
authors.initials: HW
authors.lastname: Thompson
authors.affiliation: c Section of Endocrinology, Department of Medicine, LSU Medical Center , New Orleans , LA 70112 , USA.
authors.forename: C
authors.initials: C
authors.lastname: Prasad
keywords: Categorical data; Multiple level tables; Partitioning chi-square analyses