Validation of the Danish Birth Registration

Jens Kristensen ()
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Jens Kristensen: University of Copenhagen

No 9811803, Proceedings of International Academic Conferences from International Institute of Social and Economic Sciences

Abstract: We assessed validity and reliability of data on four serious pregnancy complications and gestational age in two national registers, the Medical Birth Register (MBR) and the National Register of Hospital Discharges (NRHD). From a cohort of all women in Denmark who gave birth to their first and second singleton infant in 1982-1987, a review was made of a selected sample of 1662 medical records. Regarding registration of pregnancy complications, there was good agreement (kappa above 0.6) between medical records and the registers, and between the registers. However, there was a tendency toward understatement evidenced by low sensitivity of three of four pregnancy complications. The level of agreement (43%) for length of gestation was disappointing. The number of systematic and nonsystematic errors indicate that there was about 52% more singleton preterm deliveries in Denmark in 1982 than previously reported (6.9% instead of 4.5%). It is concluded that the validity of the Danish birth registers should be improved by explicit definitions, increased use of raw data, and data collection by motivated professionals at birth.

Keywords: Epidemiologi; preterm; registerstudy (search for similar items in EconPapers)
Pages: 1 page
Date: 2019-10
New Economics Papers: this item is included in nep-hea
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Published in Proceedings of the Proceedings of the 49th International Academic Conference, Dubrovnik, Oct 2019, pages 123-123

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