PMID: 6796171Dec 12, 1981

Accuracy of early estimation of maturity at a district general hospital

British Medical Journal
M J Brindle


The accuracy of routine sonar scanning of patients attending the antenatal clinic of a general hospital before the 19th week of pregnancy was calculated and compared with the potential accuracy of the techniques used. Out of 200 patients who went into labour spontaneously, 164 delivered within nine days of the sonar prediction, and 152 delivered within nine days of the date estimated from the menstrual history. The discrepancy between the mean of the expected date of delivery from the sonar examination and that derived from the menstrual history was 2.24 days. When the two estimations differed by a week or more the sonar estimation was more accurate, and all 44 patients in this group delivered by the sixth day after the sonar prediction. These findings emphasise the need for those providing a similar service to review the accuracy of their own work.


May 26, 1979·British Medical Journal·E C ColesP Farrant
Jan 1, 1977·British Journal of Obstetrics and Gynaecology·J E Drumm
Sep 1, 1975·British Journal of Obstetrics and Gynaecology·H P Robinson, J E Fleming
Apr 1, 1973·The Journal of Obstetrics and Gynaecology of the British Commonwealth·T R Varma
Sep 1, 1973·The Journal of Obstetrics and Gynaecology of the British Commonwealth·J M DavisonT A Whittingham
Jun 1, 1971·The Journal of Obstetrics and Gynaecology of the British Commonwealth·S Campbell, G B Newman
Jul 1, 1969·The Journal of Obstetrics and Gynaecology of the British Commonwealth·S Campbell
Sep 12, 1981·British Medical Journal·S J StandingR W Lacey


Apr 10, 1982·British Medical Journal·J F Pearson
Jan 1, 1988·Ultrasound in Medicine & Biology·D M Clarkson, J A Evans
May 1, 1985·British Journal of Obstetrics and Gynaecology·M H HallM L Samphier

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