In 1999 we had carried out a study to develop a scoring system using clinical factors to distinguish these two types of stroke. The result is as follow: Score = Mode of onset (gradually or stepwise: 0, immediately: 2, quickly in 2hs: 4) + Consciousness at onset (alert: 0, drowsy or stupor: 0.5, coma: 3) + Headache at onset (no: 0, yes: 1.5) + Vomiting (no: 0, yes: 1) + 1/20 * Diastolic blood pressure (mmHg) - History of TIAs, stroke, or diabetes (none: 0, at least one of three: 1.5) - 7.5.