婴儿猝死综合征(简称STDS)是指外表健康的婴儿突然意外地死亡,尸检不能发现明确的死因。近年国外对燕研究较多,取得进展较大,为提高对本病的认识,现结合有关资料综述如下。发病率及其影响因素目前世界各地报道的SIDS 发病率多为0.06～3‰。我国尚无统计资料。一般认为SIDS 的发病率与下列因素有关。 Sudden Infant Death Syndrome (STDS) refers to the sudden appearance of unhealthy infants who die unexpectedly and can not be found by autopsy. In recent years, foreign research on Yan more, made great progress, in order to improve awareness of the disease, are combined with the relevant information summarized below. Morbidity and its influencing factors SIDS incidences reported around the world are mostly 0.06 ~ 3 ‰. There is no statistical data in our country. It is generally believed that the incidence of SIDS is related to the following factors.