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Table 2 Example of a risk model: the ADNEX model

From: Three myths about risk thresholds for prediction models

ADNEX is a model to preoperatively characterize ovarian cancer by calculating the risks of benign tumors and four classes of malignant tumors. It was constructed using multinomial logistic regression and validated with more recent data and in other centers [14]. Its predictors are age, CA125 levels, the tumor diameter, the proportion of solid tissue in the tumor, the number of locules, the number of papillary projections, the presence of acoustic shadows, the presence of ascites, and whether the patient was seen at a tertiary oncology center.