Outcome of pregnancy in diabetic women

doi:10.1136/bmj.322.7286.614

BMJ 2001;322:614 ( 10 March )

Letters

Outcome of pregnancy in diabetic women

Authors did not define criterion for case selection

More investigation is needed into whether control of diabetes is really poorer in England than Norway

Authors' reply

Authors did not define criterion for case selection

The first 150 words of the full text of this article appear below.

EDITOR $---$ Hawthorne et al claim to show that women with diabetes have a much more unfavourable outcome of pregnancy in Englandthan Norway.¹ But what does their study reallyshow?

Their criterion for case selection ("diabetes") was not defined. But the prevalence differs hugely between the countries:1 in 335 pregnant women in northeast England and 1 in 90 in Norwaywere reported to have diabetes. This suggests that selection inthe two countries was based on different clinical criteria. Innortheast England most women included in the northern diabeticpregnancy survey were taking insulin before pregnancy, and allcases were confirmed by the clinicians and from the patient record.²The data from Norway are from the centralised medical birth registry,and the possible pitfalls of this are illustrated by experienceinScotland.

I checked national registry listings of diabetes as part of the protocol for the SIGN (Scottish Intercollegiate GuidelinesNetwork) guideline . . . [Full text of this article]

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This article has been cited by other articles:

Diabetes and Pregnancy Group, France, (2003). French Multicentric Survey of Outcome of Pregnancy in Women With Pregestational Diabetes. Diabetes Care 26: 2990-2993 [Abstract] [Full text]
Hawthorne, G., Irgens, L. M, Lie, R. T, Moe, N., Jervell, J. (2003). Retraction of paper on maternal diabetes. BMJ 327: 929-929 [Full text]