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Based on decision tree analysis, the following are the top 5 variables that predicted a need for preoperative embolization: age, private insurance, female sex, Hispanic race, and preoperative hypothyroidism
| Variable | Variable importance score (Gini) |
|---|---|
| Age | 0.432 |
| Private insurance | 0.057 |
| Sex: female | 0.053 |
| Race: Hispanic | 0.051 |
| Comorbidity: hypothyroidism | 0.049 |
