The authors identified predictors of functional disability and mortality after status epilepticus in a multivariate analysis of 83 episodes in 74 patients. Twenty-one percent (14/85) of episodes were fatal. Increased age (OR = 1.1; 95% CI, 1.0 to 1.1) and acute symptomatic seizures (OR = 6.0; 95% CI, 1.2 to 30.3) were predictors of mortality. Functional outcome at discharge deteriorated in 23% (16/69) of nonfatal episodes. Increased length of hospitalization (OR = 1.04; 95% CI, 1.0 to 1.1) and acute symptomatic seizures (OR = 3.9; 95% CI, 1.0 to 14.7) were predictors of functional disability.