Table 3.
Capsular Serotypes and Virulence Factors Between T6SS‐positive and T6SS‐negative K. pneumoniae Bloodstream Isolates
| Variable, n (%) | Total n = 119 | T6SS‐Positive (n = 20) | T6SS‐Negative (n = 99) | p-value |
|---|---|---|---|---|
| Capsular serotype | ||||
| K1 | 13 (10.9) | 5 (25.0) | 8 (8.1) | 0.027 |
| K2 | 9 (7.5) | 1 (5.0) | 8 (8.1) | 0.653 |
| Non K1/K2 | 97 (81.5) | 14 (70.0) | 83 (83.8) | 0.146 |
| Virulence genes | ||||
| rmpA | 60 (50.4) | 13 (65.0) | 47 (47.5) | 0.153 |
| rmpA2 | 54 (45.3) | 12 (60.0) | 42 (42.4) | 0.307 |
| aerobactin | 28 (23.5) | 11 (55.0) | 17 (17.2) | <0.001 |
| iroB | 27 (22.6) | 9 (45.0) | 18 (18.2) | 0.009 |
| hvkp | 26 (21.8) | 10 (50.0) | 16 (16.2) | 0.001 |
Abbreviation: K, capsular polysaccharide (K antigen).