JAMA Network Open:中国研究发现哺乳时间长的妈妈脑卒中风险低

2022-03-04 影像小生 MedSci原创

哺乳与卒中风险的降低显著相关,特别是缺血性卒中,这强调了促进母乳喂养作为卒中有针对性的预防策略的重要性。

以前的大多数研究都集中在哺乳期和心血管疾病之间的联系。然而,很少有研究探讨哺乳与中风亚型之间的关系。美国的一项研究表明,哺乳期较长与中风风险较低相关,但哺乳期与中风不同病理亚型(如缺血性中风、脑出血和蛛网膜下腔出血)的关系并未得到评估。

为了填补这一知识空白,Ziyang Ren等在JAMA Network Open杂志发表研究文章Lactation Duration and the Risk of Subtypes of Stroke Among Parous Postmenopausal Women From the China Kadoorie Biobank, 探讨哺乳期长短与绝经后妇女脑卒中及其亚型的关系。

这项基于人群的前瞻性队列研究研究对象为中国45-79岁的绝经后经产妇(2004-2008年)。在随访期间(2008-2015年),通过疾病登记和国家健康保险索赔数据库评估了新发卒中及其亚型(缺血性卒中、脑出血[ICH]和蛛网膜下腔出血[SAH])。

该实验的主要结果和指标为全脑卒中、缺血性卒中、脑出血和蛛网膜下腔出血。该研究采用多变量Cox回归计算卒中和各亚型的调整危险比(aHRs)。129511例绝经后经产妇(中位[IQR]年龄,58.3[54.0-64.6]岁)基线时无卒中,15721例发生卒中,13427例缺血性卒中妇女的中位(IQR)哺乳时间为42.0(24.0-70.0)个月,2567例脑出血妇女的中位(IQR)哺乳时间为54.0(36.0-84.0)个月,284例SAH患者中36.0(24.0-64.5)个月。

与从未哺乳过的绝经后妇女相比,哺乳期至少7个月的妇女发生缺血性中风(aHRs范围为0.52 ~ 0.64)和脑出血(aHRs范围为0.56 ~ 0.78)的风险较低。

绝经后妇女哺乳期长短与卒中及其亚型的剂量-风险关系。根据年龄、妊娠率、绝经年龄、活产数、糖尿病高血压、癌症、服用避孕药、抗凝治疗、降血脂治疗、教育程度、收入、婚姻状况、职业、居住地、吸烟、被动吸烟、饮酒、代谢当量、体重指数和腰围调整HRs。

然而,对于SAH,这种关联仅在终生哺乳时间超过24个月的参与者中被发现(aHR, 0.61 [95% CI, 0.47-0.79])。此外,平均每个孩子哺乳时间或第一个孩子哺乳时间为7个月以上的妇女不太可能患中风(aHRs:0.53-0.65)及其亚型(aHRs:0.51-0.75)。

在这项队列研究中,哺乳与卒中风险的降低显著相关,特别是缺血性卒中,这强调了促进母乳喂养作为卒中有针对性的预防策略的重要性。

原文出处

Ren Z, Yi Q, Hou L, et al. Lactation Duration and the Risk of Subtypes of Stroke Among Parous Postmenopausal Women From the China Kadoorie Biobank. JAMA Netw Open. 2022;5(2):e220437. doi:10.1001/jamanetworkopen.2022.0437

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    2023-01-11 智者为医08
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    2022-08-19 canlab
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