Kei Hirai1, Kazuhiro Harada2,3, Aiko Seki4, Miwa Nagatsuka5, Hirokazu Arai6, Ayako Hazama7, Yoshiki Ishikawa8, Chisato Hamashima9, Hiroshi Saito9, Daisuke Shibuya10. 1. Department of Complementary and Alternative Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan. 2. Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan. 3. Japan Society for the Promotion of Sciences, Chiyoda-ku, Tokyo, Japan. 4. Graduate School of Human Sciences, Osaka University, Japan, Suita, Osaka, Japan. 5. National Hospital Organization Osaka Medical Center, Tyuo-ku, Osaka, Japan. 6. Department of Psychology, Faculty of Letters, Hosei University, Chiyoda-ku, Tokyo, Japan. 7. Public Health Graduate School of Medicine, Osaka University, Suita, Osaka, Japan. 8. Department of Public Health, Jichi Medical School, Shimono City, Tochigi, Japan. 9. Screening Assessment and Management Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Chuo-ku, Tokyo, Japan. 10. Cancer Detection Center, Miyagi Cancer Society, Sendai, Miyagi, Japan.
Abstract
OBJECTIVES: This study aimed to develop a structural model for mammography adoption in Japanese middle-aged women by using constructs from the transtheoretical model (TTM), the theory of planned behavior (TPB), implementation intentions, and cancer worry. METHODS: Questionnaires based on items including TTM, TPB, implementation intentions, cancer worry-related variables, and demographic variables were distributed to 1000 adult women aged 40 to 59 years, with 641 subjects being used in the final analysis (response rate = 64.1%). RESULTS: Regarding the stage of adoption, 79 participants (12.3%) were at the precontemplation stage, 30 (4.7%) were at the relapse stage, 142 (22.2%) were at the contemplation stage, 88 (13.7%) were at the action stage, and 302 (47.1%) were at the maintenance stage. Our model, derived from structural equation modeling, revealed that the stage of mammography adoption was significantly affected by goal intentions, implementation intentions, perceived barriers, history of breast cancer screening, and relative risk. A logistic regression analysis revealed that goal intentions and implementation intentions significantly predicted mammography uptake within 1 year. CONCLUSION: This study developed an integrated model constructed from TTM, TPB, implementation intentions, and cancer worry to account for mammography adoption in Japan, and also confirmed the predictive validity of the model.
OBJECTIVES: This study aimed to develop a structural model for mammography adoption in Japanese middle-aged women by using constructs from the transtheoretical model (TTM), the theory of planned behavior (TPB), implementation intentions, and cancer worry. METHODS: Questionnaires based on items including TTM, TPB, implementation intentions, cancer worry-related variables, and demographic variables were distributed to 1000 adult women aged 40 to 59 years, with 641 subjects being used in the final analysis (response rate = 64.1%). RESULTS: Regarding the stage of adoption, 79 participants (12.3%) were at the precontemplation stage, 30 (4.7%) were at the relapse stage, 142 (22.2%) were at the contemplation stage, 88 (13.7%) were at the action stage, and 302 (47.1%) were at the maintenance stage. Our model, derived from structural equation modeling, revealed that the stage of mammography adoption was significantly affected by goal intentions, implementation intentions, perceived barriers, history of breast cancer screening, and relative risk. A logistic regression analysis revealed that goal intentions and implementation intentions significantly predicted mammography uptake within 1 year. CONCLUSION: This study developed an integrated model constructed from TTM, TPB, implementation intentions, and cancer worry to account for mammography adoption in Japan, and also confirmed the predictive validity of the model.
Authors: John R Scheel; Yamile Molina; Katherine J Briant; Genoveva Ibarra; Constance D Lehman; Beti Thompson Journal: J Community Health Date: 2015-12
Authors: Yamile Molina; India J Ornelas; Sarah L Doty; Sonia Bishop; Shirley A A Beresford; Gloria D Coronado Journal: Health Educ Res Date: 2015-08-31