The EMPOWER intervention trial is a 12-month study of 360 women from the Childhood Cancer Survivor Study who have previously been treated with chest radiation, are 25 to 49 years of age at the time of enrollment, are 8 years or more since their chest radiation, and have not had a mammogram or other breast imaging study in the preceding two years. Following a baseline questionnaire, participants will be randomized to the attention control group (N=120) or the intervention group (N=240).

The EMPOWER intervention trial is a 12-month study of 360 women from the Childhood Cancer Survivor Study who have previously been treated with chest radiation, are 25 to 49 years of age at the time of enrollment, are 8 years or more since their chest radiation, and have not had a mammogram or other breast imaging study in the preceding two years. Following a baseline questionnaire, participants will be randomized to the attention control group (N=120) or the intervention group (N=240).

The intervention components (mailed tailored print materials followed by telephone-delivered Brief MI). Following enrollment into the study and completion of the informed consent form and baseline survey, participants will be randomized to the active intervention group or the attention control group. The data that will be used in the analysis will come from the baseline survey, medical records of breast imaging studies, and a 12-month follow-up questionnaire.

Determine the efficacy of an intervention, consisting of mailed tailored print materials followed by a telephone-delivered Brief Motivational Interview, on mammogram screening rates compared with an attention control. Mammogram completed by 12-month questionnaire (confirmed by medical record)

By including interaction terms in the model, we will assess potential moderating factors such as age, race/ethnicity, health insurance, & other sociodemographic variables. Moderating effects can be adequately addressed through interactions between the intervention & the above mentioned covariates.124 An interaction with the treatment group indicator suggests differential effectiveness, and moderator variables with statistically significant interactions will remain in the model. Interactions will be estimated using crossproduct terms between the intervention indicator & the mediating variable.