Table 2.
The Capsular Serotypes and Virulence-Associated Genes of Invasive K. pneumoniae Strains in This Study
| Total | CRHV-KP | non CRHV-KP | P value | |
|---|---|---|---|---|
| (n=94) | (n=12) | (n=82) | ||
| Capsular serotypes, n (%) | ||||
| K1 | 7 (7.45) | 0 (0) | 7 (8.54) | 0.5895 |
| K2 | 11 (11.70) | 2 (16.67) | 9 (10.98) | 0.9266 |
| K5 | 4 (4.26) | 0 (0) | 4 (4.88) | 1.0000 |
| K20 | 0 (0) | 0 (0) | 0 (0) | 1.0000 |
| K54 | 6 (6.38) | 2 (16.67) | 4 (4.88) | 0.1678 |
| K57 | 59 (62.77) | 8 (66.67) | 51 (62.20) | 0.9837 |
| Others | 7 (7.45) | 0 (0) | 7 (8.54) | 0.5895 |
| Hypervirulent genes, n (%) | ||||
| iucA | 13 (13.83) | 0 (0) | 13 (15.85) | 0.2992 |
| prmpA | 29 (30.85) | 6 (50.00) | 23 (28.05) | 0.2289 |
| prmpA2 | 2 (2.13) | 0 (0) | 2 (2.44) | 1.0000 |
| crmpA | 6 (6.38) | 0 (0) | 6 (7.32) | 1.0000 |
| peg-344 | 32 (34.04) | 1 (8.33) | 31 (37.80) | 0.0918 |
| terB | 0 (0) | 0 (0) | 0 (0) | 1.0000 |
| iroB | 81 (86.17) | 12 (100.00) | 69 (84.15) | 0.2992 |
| irp2 | 0 (0) | 0 (0) | 0 (0) | 1.0000 |
| Other virulence genes, n (%) | ||||
| ytbS | 11 (11.70) | 3 (25.00) | 8 (9.76) | 0.2921 |
| mrkD | 93 (98.94) | 12 (100.00) | 81 (98.78) | 1.0000 |
| entB | 20 (21.28) | 3 (25.00) | 17 (20.73) | 0.9680 |
| kfu | 47 (50.00) | 3 (25.00) | 44 (53.66) | 0.0637 |
| allS | 16 (17.02) | 0 | 16 (19.51) | 0.2046 |
| iutA | 2 (2.13) | 0 | 2 (2.44) | 1.0000 |
| k2A | 4 (4.26) | 1 (8.33) | 3 (3.66) | 0.4264 |
| wabG | 94 (100.00) | 12 (100.00) | 82 (100.00) | 1.0000 |
| Uge | 83 (88.30) | 10 (83.33) | 73 (89.02) | 0.9266 |
| fimH | 90 (95.74) | 12 (100.00) | 78 (95.12) | 1.0000 |
| wcaG | 23 (24.47) | 2 (16.67) | 21 (25.61) | 0.7538 |
| Kpn | 50 (53.19) | 9 (75.00) | 41 (50.00) | 0.1050 |
| ycfM | 91 (96.81) | 12 (100.00) | 79 (96.34) | 1.0000 |
| iroN | 27 (28.72) | 1 (8.33) | 26 (31.71) | 0.1836 |
| Hly | 0 (0) | 0 (0) | 0 (0) | 1.0000 |
| cnf-1 | 0 (0) | 0 (0) | 0 (0) | 1.0000 |