Ericson A, Eriksson M, Källén B, Westerholm P, Zetterström R
Arch Environ Health. 1984 Jan-Feb;39(1):5-10. doi: 10.1080/00039896.1984.10545826.
By record-linkage of the 1975 Swedish census and the Medical Birth Register of infants born in 1976, 1,161 infants were identified who were born to women coded as laboratory workers in the census. These infants were compared to all 98,354 infants born in Sweden in 1976. There was a higher than expected number of infants who died neonatally and/or had congenital malformations. Twenty-six singleton infants who either died or had serious malformations were selected for further study. To each of the cases, 2 controls were selected among the 1,161 infants. A questionnaire was sent to the 26 cases and 50 controls (2 cases had only 1 control each) asking about work during pregnancy. No specific type of laboratory work was found to be more common among the cases than controls.
通过将1975年瑞典人口普查记录与1976年出生婴儿的医学出生登记册进行关联，识别出1161名婴儿，其母亲在人口普查中被编码为实验室工作人员。将这些婴儿与1976年在瑞典出生的所有98354名婴儿进行比较。新生儿死亡和/或患有先天性畸形的婴儿数量高于预期。选择了26名单胎婴儿进行进一步研究，这些婴儿要么死亡，要么有严重畸形。在1161名婴儿中，为每个病例选择了2名对照。向26例病例和50名对照（2例病例各只有1名对照）发送了一份问卷，询问孕期工作情况。未发现病例中比对照更常见的特定类型的实验室工作。
