Mammography interventions for 65- to 74-year-old HMO women. Program effectiveness and predictors of use.

This study evaluated the impact of two interventions designed to encourage mammography use among HMO women aged 65-74 who had not had a mammogram within the past year and had not used their referral for a free mammogram. Ninety days after the referral mailing, women were randomized to receive (a) a survey, (b) a survey in addition to telephone mammography counseling, or (c) a survey, telephone counseling, and a letter. Follow-up data indicated that only 13% of control group women compared to 27% who received phone counseling and 32% who received counseling and a letter obtained a mammogram within 120 days following the baseline survey and/or intervention. Results of the logistic regression analysis indicated that having received either of the interventions, mammography history, access ease, breast cancer/mammography beliefs, and having a friend or family member with breast cancer were independently and significantly related to mammography use.