Aneurysmal subarachnoid hemorrhage prognostic decision-making algorithm using classification and regression tree analysis

BACKGROUND: Classification and regression tree analysis involves the creation of a decision tree by recursive partitioning of a dataset into more homogeneous subgroups. Thus far, there is scarce literature on using this technique to create clinical prediction tools for aneurysmal subarachnoid hemorrhage (SAH). METHODS: The classification and regression tree analysis technique was applied to the multicenter Tirilazad database (3551 patients) in …