TABLE 1.

LPS O-antigen serotypes in the clinical isolates of P. aeruginosa and association with patient mortality

O-antigen typeNo. (%) of isolates from patients with:Total no. (%) of isolates with indicated serotypebNo. (%) of isolates of each serotype associated with mortality
Acute infectionChronic infection
O112 (12.1)a1 (1.0)13 (13.1)3 (23.1)
O20 (0.0)2 (2.0)2 (2.0)0 (0.0)
O33 (3.0)1 (1.0)4 (4.0)0 (0.0)
O47 (7.1)1 (1.0)8 (8.1)4 (50.0)a
O53 (3.0)0 (0.0)3 (3.0)0 (0.0)
O611 (11.1)3 (3.0)14 (14.1)4 (28.6)
O71 (1.0)0 (0.0)1 (1.0)0 (0.0)
O81 (1.0)0 (0.0)1 (1.0)0 (0.0)
O92 (2.0)2 (2.0)4 (4.0)0 (0.0)
O103 (3.0)0 (0.0)3 (3.0)0 (0.0)
O119 (9.1)a0 (0.0)9 (9.1)3 (33.3)
O12-O170 (0.0)0 (0.0)0 (0.0)0 (0.0)
O16 (16.2)21 (21.2)a37 (37.4)3 (9.0)
Total68 (68.7)31 (31.3)99 (100)17 (17.2)
  • a Association analyzed by Fisher's exact test in Table 2.

  • b 62 (62.6%) of the isolates were serotypes O1 to O11.