在第一级医疗保健中，及时发现乳腺癌对于防止疾病进展、获得最佳治疗、改善患者预后和生存至关重要。本研究的目的是分析墨西哥社会保障研究院分散行政运作机构，阿瓜斯卡连特斯，墨西哥家庭医疗部门1的40至69岁女性家庭医生转诊到预防医学模块的机会，并探讨其对BI-RADS分类乳腺摄影检查结果的影响。方法：本研究采用横断面比较研究，对从2019年1月至2021年6月在预防医学模块接受治疗的40至69岁女性进行了412张乳腺摄影检查。采用简单随机抽样和核查表格进行数据收集，并进行了根据年龄调整的多元 logistic 回归模型。共有90.29%接受乳腺摄影检查的患者在及时转诊方面存在缺失，这种诊断和治疗的延误使得 BI-RADS 可疑恶性病变的分类患病风险增加了3.01倍，与及时转诊的女性相比（OR adj = 3.01, 95% CI 1.04-8.72 , p = 0.041）。对于40-69岁女性乳腺癌的预防医学模块的失时转诊增加了恶性病变患者的风险。© 2023 Published by Elsevier Inc.

In the first level of health care, the timely detection of breast cancer is essential to prevent the progression of the disease, obtain optimal treatment and improve the prognosis and survival of patients. The objective of this study was to analyze the opportunity in referral to the Preventive Medicine Modules offered to women aged 40 to 69 years of the Family Medicine Unit 1, of the Mexican Social Security Institute, Decentralized Administrative Operation Body, Aguascalientes, Mexico, by their family physician, and its impact in the findings of mammographic screening according to the BI-RADS classification. Methods This was a cross-sectional comparative study of 412 mammograms performed on women aged 40 to 69, who were treated in the preventive medicine modules from January 2019 to June 2021. Data collection was carried out by simple random sampling using a checklist. Multiple logistic regression models adjusted for age were applied.A total of 90.29% of the patients who underwent screening mammography were not referred in a timely manner to the preventive medicine modules by the family physician, this delay in diagnosis and treatment increased by 3.01 times the probability of having a classification BI-RADS suspected of malignancy compared to those women whose referral was timely (OR adj = 3.01, 95% CI 1.04-8.72, p = 0.041).The untimely referral of women aged 40-69 to preventive medicine modules for the detection of breast cancer increases the risk of finding a malignant lesión.© 2023 Published by Elsevier Inc.