An obstetric scoring system: its development and application in obstetric management.

A J Knox; L Sadler; N S Pattison; C D Mantell; P Mullins

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PubMed · 8423949

An obstetric scoring system: its development and application in obstetric management.

A J Knox·L Sadler·N S Pattison·C D Mantell·P Mullins

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Abstract

OBJECTIVE: To develop a statistically derived but clinically usable antenatal risk scoring system. METHODS: Data from 20,985 pregnancies were statistically analyzed to identify significant risk factors. Logistic regression analysis was then used to produce a final scoring system, which was subsequently tested for validity on a separate population of 3120 pregnancies. RESULTS: Twenty-seven significant antenatal variables were included in the final scoring system. Application of the system in early pregnancy resulted in a predictive accuracy of 0.73; at the onset of labor, predictive accuracy was 0.91. At the time of labor, 87% of poor outcomes were accurately identified by allocation of only 16% of the women to the high-risk group. CONCLUSIONS: It was possible to develop a risk scoring system with a predictive accuracy higher than any previously reported statistically derived score. Summation of the logistic coefficients provides a score that by comparison with a chosen threshold identifies a high-risk pregnancy. In this way, despite the complexity of statistical analysis, all clinicians can quickly apply this scoring system.

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Abstracting and Indexing Adult Female Humans Infant Mortality Infant, Newborn Morbidity New Zealand Outcome Assessment, Health Care Pregnancy Pregnancy Complications Pregnancy Outcome Regression Analysis Risk Factors Journal Article

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A J Knox, L Sadler, N S Pattison, C D Mantell, P Mullins. 1993. An obstetric scoring system: its development and application in obstetric management.. https://pubmed.ncbi.nlm.nih.gov/8423949/

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