Abstract
Summary: Although the percentage of women who initiate breast cancer screening is increasing, the rate of continued adherence is poor. The purpose of this article was to demonstrate the study to develop a model of behavioral change for breast cancer screening based on the trans-theoretical model, the theory of planned behavior, and cancer worry, and examine the predictive validity of audience segmentation based on the model and the effectiveness of a tailored message intervention compared with a non-tailored message intervention for psychological based segments increasing the breast cancer screening rate. Our model from a questionnaire survey completed by 641 women revealed that the stage of change for mammography adoption was significantly affected by goal intention, implementation intention and cancer worry, and the predictive validity of audience segmentation was confirmed. Tailored message intervention was conducted for 1859 participants from a Japanese urban community setting. A logistic regression model revealed that the odds of a woman who received a tailored message undergoing mammography was 4.02 times those of a women who had received a non-tailored message (95% confidence interval, 2.67–6.06). These studies show that behavioral change approach is effective and significant way to develop the model and intervention for the Japanese cancer screening behaviors.
