Format

Send to

Choose Destination
See comment in PubMed Commons below
Br J Gen Pract. 1993 Aug;43(373):322-5.

Estimated date of delivery from last menstrual period and ultrasound scan: which is more accurate?

Author information

1
Royal Postgraduate Medical School, London.

Abstract

The aim of this study was to determine which is the more accurate predictor of the date of delivery for pregnant women in a community-based population: a calculation based on the last menstrual period or a prediction based on the measurement by ultrasound scanning of well-recognized fetal characteristics. A prospective study was conducted of 225 consecutive women reporting their pregnancy in a semi-rural general practice; 106 women were included in the analysis. The results showed that in over 50% of cases the estimated date of delivery derived from the ultrasound scan was more accurate than that derived from the last menstrual period, whatever the discrepancy between the two predictions. It can be concluded that all professionals involved with antenatal care should ignore the estimated date of delivery derived from the last menstrual period once a satisfactory scan has been obtained.

Comment in

PMID:
8251215
PMCID:
PMC1372555
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire Icon for PubMed Central
    Loading ...
    Support Center