NDM-1-Positive K. pneumoniae at a Teaching Hospital in Southwestern China: Clinical Characteristics, Antimicrobial Resistance, Molecular Characterization, Biofilm Assay, and Virulence

Table 3

Differences in the distribution of virulence genes and serotypes between NDM-1-positive K. pneumoniae and NDM-1-negative K. pneumonia (n (%)).

	NDM-1-positive K. pneumoniae (n = 30)	NDM-1 negative K. pneumoniae (n = 60)	P
K1	0 (0)	15 (25.00)	0.003
K2	0 (0)	7 (11.66)	0.051
K5	0 (0)	1 (1.66)	0.477
K57	0 (0)	2 (3.33)	0.312
entB	30 (100.00)	60 (100.00)	1
ybtS	28 (93.33)	60 (100.00)	0.109
FimH	23 (76.67)	56 (93.33)	0.038
wabG	27 (90.00)	60 (100.00)	0.035
ureA	27 (90.00)	59 (98.33)	0.106
ycf	25 (83.33)	58 (96.67)	0.039
uge	23 (76.67)	43 (71.67)	0.801
iutA	41 (3.33)	26 (43.33)	0.005
kfuB	1 (3.33)	20 (33.33)	0.001
aerobactin	0 (0)	13 (21.67)	0.004
IroN	0 (0)	1 (1.67)	1
rmpA	0 (0)	9 (15.00)	0.027
magA	0 (0)	7 (11.67)	0.09
Alls	0 (0)	9 (15.00)	0.027
vatD	0 (0)	0 (0)	1