Community-acquired bacterial meningitis in adults: categorization of causes and timing of death.

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The relationship between cause and timing of death in 294 adults who had been hospitalized with community-acquired bacterial meningitis was investigated. For 74 patients with community-acquired bacterial meningitis who died during hospitalization, the underlying and immediate causes of death were identified according to the criteria of the World Health Organization and National Center for Health Statistics. Patients were classified into 3 groups: category I, in which meningitis was the underlying and immediate cause of death (59% of patients; median duration of survival, 5 days); category II, in which meningitis was the underlying but not immediate cause of death (18%; median duration of survival, 10 days); and category III, in which meningitis was neither the underlying nor immediate cause of death (23%; median duration of survival, 32 days). In a substantial proportion of adults hospitalized with community-acquired bacterial meningitis, meningitis was neither the immediate nor the underlying cause of death. A 14-day survival end point discriminated between deaths attributable to meningitis and those with another cause.