Department of Radiology, Fourth Medical Center of PLA General Hospital, Beijing, 100048, China.
Department of Radiology, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China.
BMC Public Health. 2024 Oct 21;24(1):2909. doi: 10.1186/s12889-024-20370-7.
Annual breast magnetic resonance imaging (MRI) is highly recommended to assist mammography for women at high risk of breast cancer (BC). This study explored the knowledge, attitude, and willingness toward breast MRI screening among women at high risk of BC.
This cross-sectional study enrolled women at high risk of BC between August 2022 and January 2023 in Beijing, China. A structural equation model (SEM) was used to analyze the relationships among knowledge, attitude, and willingness.
A total of 596 questionnaires were collected, and 412 questionnaires (69.13%) were valid. The women's knowledge and attitude scores were 7.75 ± 2.79 (possible range: 0-12) and 48.53 ± 6.31 (possible range: 13-65). Among the women, 297 (72.09%) were willing to undergo regular breast MRI screening. The SEM showed that knowledge had direct effect on attitude [β = 0.77, 95% CI: (0.57, 0.98), P < 0.001], the attitude had direct effect on willingness [β = 0.02, 95% CI: (0.01, 0.02), P < 0.001], knowledge had an indirect effect on willingness through attitude [β = 0.01, 95% CI: (0.01,0.02), P < 0.001], and the direct effect of knowledge on practice was not significant.
The women at high risk of BC had insufficient knowledge and a relatively positive attitude toward breast MRI screening. Most of them were willing to undergo regular breast MRI screening. Advertising and public health education programs should be designed to improve their knowledge and attitude, therefore improving their willingness and practice.
每年进行乳房磁共振成像（MRI）检查，以辅助乳腺癌（BC）高危女性进行乳房 X 光检查，这一做法已得到高度推荐。本研究旨在探索 BC 高危女性对乳房 MRI 筛查的知识、态度和意愿。
本横断面研究于 2022 年 8 月至 2023 年 1 月期间在北京招募 BC 高危女性。采用结构方程模型（SEM）分析知识、态度和意愿之间的关系。
共收集了 596 份问卷，其中 412 份（69.13%）有效。女性的知识和态度得分为 7.75±2.79（可能范围：0-12）和 48.53±6.31（可能范围：13-65）。在这些女性中，297 人（72.09%）愿意定期进行乳房 MRI 筛查。SEM 显示，知识对态度有直接影响[β=0.77，95%可信区间：（0.57，0.98），P<0.001]，态度对意愿有直接影响[β=0.02，95%可信区间：（0.01，0.02），P<0.001]，知识通过态度对意愿有间接影响[β=0.01，95%可信区间：（0.01，0.02），P<0.001]，知识对实践的直接影响不显著。
BC 高危女性对乳房 MRI 筛查的知识不足，但态度相对积极。大多数女性愿意定期进行乳房 MRI 筛查。应设计广告和公共卫生教育计划，以提高她们的知识和态度，从而提高她们的意愿和实践。
