Prediction of Location of a Symptomatic Early Gestation Based Solely on Clinical Presentation.

The article assesses three strategies for diagnosing women at risk for ectopic pregnancy based on information collected at initial presentation. The strategies used were logistic regression, a numeric scoring system and a classification and regression tree. The researchers found that a scoring system based on five factors, namely age, ectopic history, bleeding, prior miscarriage and human chorionic gonadotropin level, is effective in predicting outcomes of women at risk for ectopic pregnancy.