一项全国出生队列43年随访中的失访与代表性
Loss and representativeness in a 43 year follow up of a national birth cohort.
作者信息
Wadsworth M E, Mann S L, Rodgers B, Kuh D J, Hilder W S, Yusuf E J
机构信息
MRC National Survey of Health and Development, University College, London, United Kingdom.
出版信息
J Epidemiol Community Health. 1992 Jun;46(3):300-4. doi: 10.1136/jech.46.3.300.
STUDY OBJECTIVE
The aim was to describe rates of loss and assessment of representativeness during 43 years of a national birth cohort study.
DESIGN
The study population is a class stratified random sample of all single, legitimate births that occurred during one single week in 1946; it has been studied at regular intervals, so far to 1989.
MAIN RESULTS
Losses through death and emigration were comparable to those in the national population of the same age. Response rates from the population resident in Britain have remained high, and the responding population is in most respects representative of the native population born in the early postwar years. Response rates within some serious physical illnesses did not differ from those of the healthy population.
CONCLUSIONS
The continuing high response rate and representativeness of this national birth cohort is likely to be the result of home based data collections and of the regular contact to provide feedback of information and to check addresses of the study population.
研究目的
本研究旨在描述一项全国性出生队列研究在43年期间的失访率及代表性评估情况。
设计
研究人群为1946年某一周内所有单胎、合法出生婴儿的班级分层随机样本；自那时起，该样本每隔一段时间就会接受研究，截至1989年。
主要结果
因死亡和移民导致的失访情况与同年龄全国人口中的情况相当。英国常住居民的应答率一直很高，且在大多数方面，应答人群能够代表战后早期出生的本国人口。患有某些严重身体疾病人群的应答率与健康人群的应答率并无差异。
结论
这一全国性出生队列持续保持的高应答率及代表性，很可能是由于基于家庭的数据收集方式，以及定期联系以提供信息反馈并核对研究人群地址的做法。
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