Selevan S G
Scand J Work Environ Health. 1981;7 Suppl 4:76-82.
Increased attention has been focused on the relationship between adverse pregnancy outcomes and occupational exposures to parents of both sexes. However, the characteristics and dynamics of working populations impose limitations on potential study populations. These limitations result from the combined effects of workforce size, exposure, age distribution, and marital status, which limit the number of pregnancies available for study. The smaller populations available typically result in retrospective studies covering extended time periods. Potential data sources for these studies include interview data, medical records, vital statistics data, and insurance records. All sources may have biased ascertainment of certain pregnancy outcomes such as early fetal loss due to errors in recall in interview data, legal requirements for recording vital statistics data, and differences in medical care patterns.
人们越来越关注不良妊娠结局与父母双方职业暴露之间的关系。然而，劳动人口的特征和动态对潜在研究人群构成了限制。这些限制是由劳动力规模、暴露情况、年龄分布和婚姻状况的综合影响造成的，它们限制了可供研究的妊娠数量。通常可获得的较小人群导致了覆盖较长时间段的回顾性研究。这些研究的潜在数据来源包括访谈数据、医疗记录、人口动态统计数据和保险记录。所有来源在确定某些妊娠结局时可能存在偏差，例如由于访谈数据中的回忆错误、人口动态统计数据记录的法律要求以及医疗护理模式的差异导致的早期胎儿丢失。
