Bakketeig L S, Seigel D G, Sternthal P M
Am J Epidemiol. 1978 Mar;107(3):216-25. doi: 10.1093/oxfordjournals.aje.a112528.
The study is based on 440,452 single births occurring in Norway, 1967--1973, with known gestational age. The information was collected through a notification system known as "Medical Registration of Births," covering all births occurring in Norway, and the data are made available through the Medical Birth Registry of Norway, which allows for linkage between births and infant deaths. The life table describes the experience of women still pregnant at a gestational age of 16 completed weeks, and states for each subsequent week the number of pregnancy terminations, the outcome, and the number of women still pregnant. Seven outcomes of pregnancy are considered: fetal death prior to labor, fetal death during labor, death within 24 hours, death 1--6 days, death 7--27 days, death 28 days--1 year, and survival of one year or more. The data in the life table provide information on the probability of pregnancy termination in each week of gestation (after 16 completed weeks), and the probabilities of the various outcomes. The fetal-infant life table is considered as an extension of descriptive perinatal statistics and is of value in monitoring health changes and in comparing perinatal mortality between populations. It also provides information on time of pregnancy termination and outcome, which has some clinical applications.
该研究基于1967年至1973年在挪威发生的440452例单胎分娩，其孕周已知。这些信息是通过一个名为“出生医学登记”的通报系统收集的，该系统涵盖了挪威发生的所有分娩情况，数据可通过挪威医学出生登记处获取，该登记处允许将出生情况与婴儿死亡情况相联系。生命表描述了孕满16周时仍处于妊娠状态的女性的情况，并针对随后的每一周列出了终止妊娠的数量、结局以及仍处于妊娠状态的女性数量。考虑了七种妊娠结局：分娩前胎儿死亡、分娩期间胎儿死亡、24小时内死亡、1至6天死亡、7至27天死亡、28天至1年死亡以及存活一年或更长时间。生命表中的数据提供了妊娠各孕周（孕满16周后）终止妊娠的概率以及各种结局的概率。胎儿-婴儿生命表被视为描述性围产期统计数据的扩展，在监测健康变化以及比较不同人群的围产期死亡率方面具有价值。它还提供了关于妊娠终止时间和结局的信息，具有一定的临床应用价值。
