TABLE 1.
Distribution of hypervirulent (aerobactin positive) phenotype among non-MDR-KP, ESBL-KP, and CR-KP.
| Isolates (n) | hvKPb (n = 124) | cKP (n = 304) | P-valuec |
| Non-MDR-KP (205) | 94(45.85%) | 111(54.15%) | < 0.0001(vs.ESBL-KP) |
| Sputum (66) | 35(53.03%) | 31(46.97%) | < 0.0001(vs.sputumESBL-KP) |
| Urine (23) | 7(30.43%) | 16(69.57%) | 0.09(vs.urineESBL-KP) |
| Blood (94) | 35(37.23%) | 59(62.77%) | 0.879(vs.bloodESBL-KP) |
| Abscess (15) | 14(93.33%) | 1(6.67%) | < 0.0001(vs.othersESBL-KP) |
| Othersa (7) | 3(42.86%) | 4(57.14%) | |
| ESBL-KP (181) | 20(11.05%) | 161(88.95%) | < 0.0001(vs.non-MDR-KP) |
| Sputum (110) | 8(7.27%) | 102(92.73%) | < 0.0001(vs.sputumnon-MDR-KP) |
| Urine (39) | 5(12.82%) | 34(87.18%) | 0.09(vs.urinenon-MDR-KP) |
| Blood (17) | 6(35.29%) | 11(64.71%) | 0.879(vs.bloodnon-MDR-KP) |
| Others (15) | 1(6.67%) | 14(93.33%) | |
| CR-KP (42) | 10(23.81%) | 32(76.19%) | 0.008(vs.non-MDR-KP) |
| 0.29(vs.ESBL-KP) | |||
| Sputum (22) | 5(22.73%) | 17(77.27%) | 0.013(vs.sputumnon-MDR-KP) |
| 0.026(vs.sputumESBL-KP) | |||
| Urine (4) | 1(25.00%) | 3(75.00%) | 0.826(vs.urinenon-MDR-KP) |
| 0.503(vs.urineESBL-KP) | |||
| Blood (16) | 4(25.00%) | 12(75.00%) | 0.344(vs.bloodnon-MDR-KP) |
| 0.52(vs.bloodESBL-KP) | |||
| Others (1) | 0(0.00%) | 1(100.00%) |
aOthers contain ascites, bile, pleural effusion, bronchoalveolar lavage fluid, and pericardial effusion. bThe hvKP were defined by aerobactin positivity. cP value for hvKP among K. pneumoniae isolates.