✦ LIBER ✦

The length of pregnancy: An echographic reappraisal

✍ Scribed by Tullia Todros; Guglielmo Ronco; Daniela Lombardo; Leone Gagliardi

Book ID: 102331652
Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 332 KB
Volume: 19
Category: Article
ISSN: 0091-2751
DOI: 10.1002/jcu.1870190104

No coin nor oath required. For personal study only.

✦ Synopsis

A study of 998 pregnant women was conducted to estimate the random errors in dating pregnancy by menstrual history and by ultrasound measurements of the fetus (crown-rump length or biparietal diameter before 20 weeks, menstrual age) as well as the biological variability of pregnancy length. The latter was found to be 7.74 days. The random errors made when dating pregnancy by menstrual history and by ultrasound measurements were 7.16 days and 4.26 days, respectively.

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