McClellan Sean P, Unger-Saldaña Karla, Neuhaus John M, Potter Michael B, García-Peña Carmen, Torres Jacqueline M
Department of Family and Community Medicine, University of California San Francisco, San Francisco, CA, USA.
National Cancer Institute, Mexico City, Mexico.
Prev Med Rep. 2023 Feb 14;32:102150. doi: 10.1016/j.pmedr.2023.102150. eCollection 2023 Apr.
After introducing guidelines for breast cancer screening in 2003, Mexico began to prioritize the implementation of mammography screening nationally. Since then, there have been no studies assessing changes in mammography in Mexico using the two-year prevalence interval that corresponds to national guidelines for screening frequency. The present study analyzes the Mexican Health and Aging Study (MHAS), a national population-based panel study of adults aged 50 and older, to evaluate changes in 2-year mammography prevalence among women aged 50 to 69 across five survey waves from 2001 to 2018 (n = 11,773). We calculated unadjusted and adjusted mammography prevalence by survey year and health insurance type. Overall prevalence increased substantially from 2003 to 2012 and leveled off in the period from 2012 to 2018 (2001: 20.2 % [95 % CI 18.3, 22.1]; 2003: 22.7 % [20.4, 25.0]; 2012: 56.5 % [53.2, 59.7]; 2015: 62.0 % [58.8, 65.2]; 2018: 59.4 % [56.7,62.1]; unadjusted prevalence). Prevalence was higher among respondents with social security insurance, who are more likely to work in the formal economy, than among respondents without social security, who are more likely to work in the informal economy or be unemployed. The overall prevalence estimates observed were higher than previously published estimates of mammography prevalence in Mexico. More research is needed to confirm findings regarding two-year mammography prevalence in Mexico and to better understand the causes of observed disparities.
2003年引入乳腺癌筛查指南后，墨西哥开始在全国范围内优先实施乳房X线筛查。从那时起，还没有研究使用与国家筛查频率指南相对应的两年患病率区间来评估墨西哥乳房X线检查的变化情况。本研究分析了墨西哥健康与老龄化研究（MHAS），这是一项基于全国人口的针对50岁及以上成年人的面板研究，以评估2001年至2018年五个调查波次中50至69岁女性的两年乳房X线检查患病率变化（n = 11,773）。我们按调查年份和健康保险类型计算了未调整和调整后的乳房X线检查患病率。总体患病率从2003年到2012年大幅上升，并在2012年至2018年期间趋于平稳（2001年：20.2% [95% CI 18.3, 22.1]；2003年：22.7% [20.4, 25.0]；2012年：56.5% [53.2, 59.7]；2015年：62.0% [58.8, 65.2]；2018年：59.4% [56.7, 62.1]；未调整患病率）。有社会保险的受访者（他们更有可能在正规经济部门工作）的患病率高于没有社会保险的受访者（他们更有可能在非正规经济部门工作或失业）。观察到的总体患病率估计值高于墨西哥此前公布的乳房X线检查患病率估计值。需要更多研究来证实墨西哥两年乳房X线检查患病率的研究结果，并更好地理解观察到的差异的原因。
