Aneurismal subarachnoid hemorrhage during the COVID-19 outbreak in a Hub and Spoke system: observational multicenter cohort study in Lombardy, Italy.

The COVID-19 period was slightly significant in the descriptive statistics stratified for GOS (Table 2 , p = 0.044); this small difference was, however, no longer evident after excluding the 4 patients who were positive for SARS-CoV-2 ( p = 0.072) and it was not significant in the multivariate logistic model (Table 3 , p = 0.052).

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