Spontaneous intracerebral hemorrhage (ICH) represents 10-15% of all strokes and is associated with high mortality and morbidity. Rapid identification and interventions, e.g. early implementation of care bundles, seem to be critical for improving outcome. Nonetheless, relatively little is known about the influence of acute physiological risk factors in the prehospital phase, although high prehospital blood pressure has been associated with worse outcome in mild to moderate ICH. Whether the same applies to severe ICH requiring neurointensive care is unclear and furthermore the prognostic impact of other physiological variables has received little attention. The aim of this study is to retrospectively investigate prehospital characteristics of severe ICH and whether physiological abnormalities are associated with functional outcome, mortality after six months, and early withdrawal of life sustaining treatment.