Descriptive statistics were used to describe the resulting database and to explore how well the survey respondents represented the general physician population. For non continuous data, chi-square analyses examined the relationship between organizational factors and stage of HER adoption .For continuous data, such as number of practice locations and practice size, analysis of variance examined His or her relationship with HER status. As the dependent variable has multiple categories (i.e., non planners, planners, and users) and as the ordinality of the variable is suspect ,a multinomial logistic regression model(MNLM)s.