Descriptive statistics were first examined for sociodemographic data. Sociodemographic variables, knowledge, and risk perception of AI were cross-tabulated with AI preventive behavior, and x 2 comparisons were performed to test for group differences between participants who practiced and those who did not practice the recommended AI preventive behavior. T-test was used for comparing the ages of participants who practiced the recommended AI preventive behavior and those who did not. Then, variables with significant x 2 or t-test results were included as candidates in subsequent stepwise logistic regression modeling. The final model was adjusted for age and gender as control variables. All statistical analyses were carried out with SPSS (version 17) and P,.05 indicated statistical significance.