Clinical features of 254 adults with meningococcal meningitis due to lpxL1 mutant and wild-type strains.

aIQR denotes interquartile range.bGCS Glasgow Coma Scale.cBP blood pressure.dSeptic shock was defined as systolic blood pressure eIn 16 strains a mutation in lpxL1 was found, but not in strain 992008.fThe Mann-Whitney U test was used to identify differences between groups in continuous variables, and dichotomous variables were compared by the chi-square or Fisher exact test.