Pyogenic meningitis.

Fifty cases with pyogenic meningitis, aged 15 to 72 years, with a male:female ratio of 5:1, were studied. The majority of cases (70%) were in the 15 to 25 years age group. The organisms detected in the 29 culture-positive cases included S aureus (12), pneumococci (9) and meningococci (8). Thirteen patients died; the poor prognostic factors included old age, the presence of coma or shock, CSF sugar below 10 mg/dl or protein above 750 mg/dl and the presence of gram negative organisms in the CSF.