Validation of the accuracy of the modified World Federation of Neurosurgical Societies subarachnoid hemorrhage grading scale for predicting the outcomes of patients with aneurysmal subarachnoid hemorrhage.

PLoS One · 2023 · PMC10443875 · PMID 37607172

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failed to reach statistical significanceno p-value reported

A previous study also showed that the differences in the outcomes between grades II and III failed to reach statistical significance on the WFNS scale [ 15 ].

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