Arsenault P S
Am J Epidemiol. 1980 Mar;111(3):279-84. doi: 10.1093/oxfordjournals.aje.a112897.
The prenatal course, labor and delivery of 90 mothers of infants who died of Sudden Infant Death Syndrome (SIDS) in Connecticut from 1974 through 1976 were studied by hospital chart reviews. Charts of 90 pair-matched controls whose infants survived the first year of life were also examined. Significant associations were found between SIDS and: 1) maternal age under 20 years, 2) later initial prenatal visit, 3) maternal blood type O, 4) reported conditions during the pregnancy. The racial distribution of the infants of the study population differed significantly from the distribution of births in Connecticut during these years, with a higher than expected proportion of blacks among the case infants. Male infants in the study population outnumbered females three to two, and cases weighed an average of 430 grams less than controls at birth.
通过查阅医院病历，对1974年至1976年期间康涅狄格州90名死于婴儿猝死综合征（SIDS）的婴儿母亲的孕期过程、分娩情况进行了研究。同时也检查了90名配对对照的病历，这些对照的婴儿存活至一岁。研究发现SIDS与以下因素之间存在显著关联：1）母亲年龄在20岁以下；2）首次产前检查较晚；3）母亲血型为O型；4）孕期报告的情况。研究人群中婴儿的种族分布与这些年康涅狄格州的出生分布有显著差异，病例婴儿中黑人比例高于预期。研究人群中男婴数量是女婴的三分之二，病例婴儿出生时平均体重比对照轻430克。
