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. 2012 Nov 29;7(11):e49295. doi: 10.1371/journal.pone.0049295

Table 1. Serogroup distribution of lipid A variants among isolates from patients with invasive meningococcal disease.

Serogroup Wild type Lipid A variant p valuea
N = 419 N = 29
B 331 (79%) 18 (62%) 0.03
C 84 (20%) 11 (38%) 0.02
29E and W135 4 (1%) -
a

Proportions were tested with Chi-square test or Fisher's exact tests, as appropriate. All p values are 2 sided; Significant correlations (p<0.05) are depicted in bold.