美国一项长达 14年的随访研究表明 ,每周吃鱼≥ 5次的妇女 ,其发生缺血性卒中的危险可降低一半。有些前瞻性的研究已证明 ,鱼的摄入量与卒中发生危险呈负相关 ;但还没有人调查过鱼和ω 3多不饱和脂肪酸的摄入量与发生特定的卒中亚型危险之间的关系。哈佛医学院流行病学部和Ｂｒ A 14-year follow-up study in the United States showed that women who ate fish ≥5 times a week had a 50% reduction in the risk of ischemic stroke. Some prospective studies have shown that fish intake is inversely related to the risk of stroke; but no one has ever investigated the association between the intake of fish and ω 3 polyunsaturated fatty acids and the risk of developing specific stroke subtypes relationship. Harvard Medical School Department of Epidemiology and Br