ABSTRACT
ABSTRACT BACKGROUND: Breast cancer worries are important determinants in relation to behavior favoring breast cancer screening. OBJECTIVE: To determine the effect of theory-based training to promote breast cancer screening among women with high and low levels of breast cancer worries. DESIGN AND SETTING: Randomized controlled trial, conducted in two family health centers. METHODS: In total, 285 women were recruited. Women with low levels of breast cancer worries were included in the first intervention group (112 women) and the first control group (112 women), while women with high levels of breast cancer worries were included in the second intervention group (37 women) and the second control group (43 women). Theory-based training to promote breast cancer screening was given to intervention groups. The women's willingness to undergo breast cancer screening and breast cancer worry scores were evaluated at 1, 3 and 6 months. RESULTS: The women in the low cancer-worry intervention group performed breast self-examination more in months 1 and 6 following the training, and the women in the high cancer-worry control group performed breast self-examination more in month 3 (P < 0.05). No difference between the women who had low or high levels of breast cancer worries were observed in relation to breast self-examination, clinical breast examination or mammography (P > 0.05). CONCLUSION: The level of worry did not affect the success of theory-based training, and the training was partially effective with regard to willingness to undergo breast cancer screening.