CUED Publications database

Design, construction and evaluation of systems to predict risk in obstetrics.

Lovell, DR and Rosario, B and Niranjan, M and Prager, RW and Dalton, KJ and Derom, R and Chalmers, J (1997) Design, construction and evaluation of systems to predict risk in obstetrics. Int J Med Inform, 46. pp. 159-173. ISSN 1386-5056

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Abstract

We present a systematic, practical approach to developing risk prediction systems, suitable for use with large databases of medical information. An important part of this approach is a novel feature selection algorithm which uses the area under the receiver operating characteristic (ROC) curve to measure the expected discriminative power of different sets of predictor variables. We describe this algorithm and use it to select variables to predict risk of a specific adverse pregnancy outcome: failure to progress in labour. Neural network, logistic regression and hierarchical Bayesian risk prediction models are constructed, all of which achieve close to the limit of performance attainable on this prediction task. We show that better prediction performance requires more discriminative clinical information rather than improved modelling techniques. It is also shown that better diagnostic criteria in clinical records would greatly assist the development of systems to predict risk in pregnancy.

Item Type: Article
Uncontrolled Keywords: Algorithms Bayes Theorem Female Humans Logistic Models Models, Theoretical Neural Networks (Computer) Obstetric Labor Complications Pregnancy Pregnancy Complications ROC Curve Risk
Subjects: UNSPECIFIED
Divisions: Div F > Machine Intelligence
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:23
Last Modified: 10 Mar 2014 18:05
DOI: