Incidence and Relation to Parity of Pregnancy‐Induced Hypertension in Iceland

A retrospective study was made to determine the incidence of pregnancy‐induced hypertension (PIH, pre‐eclampsia) in Iceland. One‐fourth of all births in Iceland in 1985 were selected from the national birth registry files by random number allocation, a total of 904 women. Maternity records were foun...

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Bibliographic Details
Published in:Acta Obstetricia et Gynecologica Scandinavica
Main Authors: Gunnlaugsson, Sigurdur R., Geirsson, Reynir Tómas, Snaedal, Gunnlaugur, Hallgrimsson, Jón Th., Gunnlaugsson, Sigurdur
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1989
Subjects:
Obstetrics and Gynecology
General Medicine
Iceland
Online Access:http://dx.doi.org/10.3109/00016348909013277
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3109%2F00016348909013277
https://obgyn.onlinelibrary.wiley.com/doi/pdf/10.3109/00016348909013277
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Summary:A retrospective study was made to determine the incidence of pregnancy‐induced hypertension (PIH, pre‐eclampsia) in Iceland. One‐fourth of all births in Iceland in 1985 were selected from the national birth registry files by random number allocation, a total of 904 women. Maternity records were found in 97.9% of the cases. The criteria used to define PIH were met in 17.4% of the women. There were 146 (16.5%) with mild PIH (blood pressure of ≥/ 140/90 mmHg with or without proteinuria after the 20th gestational week). Eight (0.9%) had severe PIH (blood pressure of ≥/160/110 mmHg with or without proteinuria after the 20th gestational week). Primigravid women formed one‐third of the group and of these 20.9% had PIH compared with 15.4% of the parous women. The incidence in parous women was higher than usually reported.

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