“…SICH was most commonly defined as a neurological worsening in terms of an increase in NIHSS (National Institutes of Health Stroke Scale) scores of ≥4, with radiological evidence of an ICH [ 17 , 23 ], though a definition was not always provided [ 16 ]. One study reported adherence to the Safe Implementation of Treatments in Stroke (SITS) criteria, defining sICH as a Type 2 parenchymal hemorrhage with clinical deterioration in NIHSS score of ≥4, or death [ 10 ], and six used the European–Australasian Cooperative Acute Stroke Study III Criteria, defining sICH as any extravasated blood in the parenchyma or within the cranium, that was the predominant cause of neurological deterioration in NIHSS score of ≥4, or death [ 8 , 11 , 15 , 17 , 18 , 19 ]. Most included studies reported no statistically significant differences in sICH between CPs and NCPs (one study assessed sICH only within 24 h [ 16 ]) [ 10 , 11 , 16 , 17 , 18 , 23 ], despite an occasional tendency towards increased rates in CPs [ 11 ].…”