Data collected and analyzed
The demographic information collected include age, sex, residence, smoke
and alcohol history, medical history from the medical record. Vehicle to
hospital, duration from onset to admission were collected shortly after
admission from patients or escorts. SBP/DBP, hematoma location, hematoma
volume, and laboratory data were copied from medical record. SMASH-U
flow-chart was adopted to classify the most likely cause for each ICH
event, including structural vascular lesions (S), medication (M),
amyloid angiopathy (A), systemic disease (S), hypertension (H),
undetermined (U)5. Modified ranking scale (mRS) score
was assessed centrally by face-to-face interview if the patient survive
at 3 months.