Measures
Our outcome variable for the analysis is any EAP use, defined as whether an enrollee (employee, spouse, or dependent) used EAP counseling services provided by MHN network affiliate providers during 2005. For key explanatory variables, we constructed four dichotomous variables. Three of these measures were obtained in late 2005=early 2006 from responses to a questionnaire providing characterizations of employer client environments,completed by MHN account managers, who were highly knowledgeable about these purchaser accounts. The fourth measure was created from a MHN database of EAP worksite activities in 2005.