Univariate statistics were generated for all variables in the data set. Most data were treated as categorical, and most bivariate analyses were conducted with chi square analysis or Fisher’s exact test, as appropriate. Multivariate analyses were conducted using logistic regression. Analyses were guided by a priori hypotheses to limit type II error, and they were conducted using two-sided tests with α =.05. Analyses were performed using SAS, version 9.1. Results Participants