National Center for Biotechnology Information NCBI NLM MEDLINE humans pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't adult female male adolescent aged middle aged Recurrence Prospective Studies sex factors risk factors 80 and over Incidence Causality Netherlands / epidemiology community-acquired infections / epidemiology meningitis craniocerebral trauma / complications* bacterial / mortality* diederik van de beek jan de gans bacterial / microbiology glasgow coma scale subdural effusion / complications* bacterial / complications pmid:17682979 doi:10.1086/520682 kirsten s adriani