Hilder Lisa, Moser Kath, Dattani Nirupa, Macfarlane Alison
Department of Midwifery, Institute of Health Sciences, City University.
Health Stat Q. 2007 Spring(33):25-33.
Information about gestational age is important but is not available for live births from registration data. It is, however, collected in NHS Numbers for Babies (NN4B) records. This project investigates the feasibility of linking NN4B data for births in the First quarter of 2005 with birth registration records. Overall 99.8 per cent of NN4B records linked with a registration record. Accuracy of linkage was questioned in 0.9 per cent. Live/stillbirth and multiple birth status were each differently classified in approximately 1 per 1,000 records. Discordance rates for other individual data items ranged from 0.3 per cent for date of birth to 12.9 per cent for postcode. Although needing further investigation, these results justify extending the linkage to the remainder of births in 2005. Linkage would be improved by retaining NHS numbers on stillbirth registration records and avoiding manual transfer of NHS numbers.
关于孕周的信息很重要，但从登记数据中无法获取活产婴儿的孕周信息。不过，这些信息会收集在“国民医疗服务体系婴儿编号”（NN4B）记录中。本项目研究了将2005年第一季度出生的NN4B数据与出生登记记录相链接的可行性。总体而言，99.8%的NN4B记录与登记记录成功链接。0.9%的链接准确性受到质疑。活产/死产和多胞胎状态在每1000条记录中各有大约1条记录分类不同。其他个别数据项的不一致率从出生日期的0.3%到邮政编码的12.9%不等。尽管需要进一步调查，但这些结果证明将链接扩展到2005年其余出生记录是合理的。保留死产登记记录上的国民医疗服务体系编号并避免手动转移国民医疗服务体系编号，将改善链接情况。
