Archive of Articles by David Hutchon, BSc, MB, ChB, FRCOG, UK OBGYN.net Editorial Advisor

July 21, 2011

"Back to the Future" for Hermaani Boerhaave, or, "A rational way to generate ultrasound scan charts for estimating the date of delivery", by David Hutchon, BSc, MB, ChB, FRCOG How to use Bayes theorem to estimate sequential conditional risks. Odds ratio or Risk: that is the question! by David Hutchon, BSc, MB, ChB, FRCOG and A. Khattab, MD , Dept of Obstetrics and Gynaecology, Memorial Hospital, Darlington, UKOnline Calculators by Dr. Hutchon Down Syndrome risk calculator with growth calculator UK dates i.e. D/M/Y versionDown Syndrome risk calculator (using Hecht and Hook formula) with growth calculator UK dates i.e. D/M/Y versionDown Syndrome risk calculator with growth calculator US dates i.e. M/D/Y versionDown Syndrome risk calculator using gestation specific likelihood ratios for both CRL and BPD measurements. UK dates i.e. D/M/Y versionDown Syndrome risk calculator using gestation specific likelihood ratios for both CRL and BPD measurements. US dates i.e. M/D/Y versionDown Syndrome risk calculator with growth calculator FRENCH version translation by Docteur Eric Launay, Paris. Down Syndrome risk calculator with growth calculator SLOVENIA version translation by Mag. Stanko Pu?enjak, dr. med.Down Syndrome risk calculator with growth calculator ITALIAN version translation by D Spagnolo-HSRaffaele Milano.Software to generate your own customised EDD calculator (UK date style entry)Software to generate your own customised EDD calculator (US date style entry)Simple fetal weight calculatorChicken pox in pregnancy: - decision assistanceA customised (for fetal sex, parity, maternal age) EDD calculator for the Darlington population - (see how to make your own)Risk of malignancy index calculator for ovarian tumoursCritical Appraisal Page (with off-line calculator package) for single treatment trialCritical Appraisal Page (with off-line calculator package) for Diagnostic testCalculator for confidence intervals of relative risk.Calculator for confidence intervals of odds ratioA whole range of statistical calculatorsGenerates a table for any ultrasound parameter measurement converted to gestation using any polynomial equationGenerates a table for gestation to any ultrasound parameter measurement using any polynomial equationCalculator for risk of Down syndrome using second trimester US markers using work published by Greggory De VoreRisk of Abruptio Placentae as published by Baumann P et al Mathematic modeling to predict abruptio placentae. Am J Obstet Gynecol 2000;183:815-22

"Back to the Future" for Hermaani Boerhaave, or, "A rational way to generate ultrasound scan charts for estimating the date of delivery", by David Hutchon, BSc, MB, ChB, FRCOG

How to use Bayes theorem to estimate sequential conditional risks. Odds ratio or Risk: that is the question! by David Hutchon, BSc, MB, ChB, FRCOG and A. Khattab, MD , Dept of Obstetrics and Gynaecology, Memorial Hospital, Darlington, UK

Online Calculators by Dr. Hutchon