| Literature DB >> 3994927 |
M H Hall, R A Carr-Hill, C Fraser, D Campbell, M L Samphier.
Abstract
The extent and genesis of uncertainty of gestation has been studied in a total obstetric population, using in all cases a best clinical estimate of gestation made according to a specific protocol. In 73.2% of patients, the estimate was assessed as certain, in 19.7% as approximate, and in 7.1% as uncertain. Uncertainty assessed in this way has several antecedents, and coding of only of these (presence or absence of a precise date for the last menstrual period) is insufficient in data to be used for research in which gestation length is to be used as a variable.Entities:
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Year: 1985 PMID： 3994927 DOI： 10.1111/j.1471-0528.1985.tb01347.x
Source DB: PubMed Journal: Br J Obstet Gynaecol ISSN： 0306-5456