Table 2.

Hyperviscosity phenotype, virulence, and drug resistance genes and capsular serotypes distribution of T6SS-positive and T6SS-negative K. pneumoniae isolates causing abscesses.

Hyperviscosity phenotype, virulence, and drug resistance genes and capsular serotypes	ALL N = 169 (%)	T6SS-negative N = 108(%)	T6SS-positive N = 61 (%)	p.overall
Hyperviscosity phenotype	81 (47.93)	53 (49.07)	28 (45.90)	0.813
HvKp	70 (41.42)	32 (29.63)	38 (62.30)	<0.001*
Virulence genes
rmpA	100 (59.17)	54 (50.00)	46 (75.41)	0.002*
rmpA2	81 (47.93)	41 (37.96)	40 (65.57)	0.001*
aerobactin	96 (56.80)	54 (50.00)	42 (68.85)	0.027*
iroB	98 (57.99)	55 (50.93)	43 (70.49)	0.021*
peg344	108 (63.91)	66 (61.11)	42 (68.85)	0.401
mrkD	169 (100.00)	108 (100.00)	61 (100.00)	1.000
wcaG	46 (27.22)	5 (4.63)	41 (67.21)	<0.001*
ybts	119(70.41)	72 (66.67)	47 (77.05)	0.213
alls	50 (29.59)	9 (8.33)	41 (67.21)	<0.001*
kfu	58 (34.32)	20 (18.52)	38 (62.30)	<0.001*
entB	154 (91.12)	99 (91.67)	55 (90.16)	0.961
iutA	101 (59.76)	58 (53.70)	43 (70.49)	0.048
Drug resistance genes
NDM-1	1 (0.59)	1 (0.93)	0 (0.00)	1.000
OXA-48	2 (1.18)	1 (0.93)	1 (1.64)	1.000
TEM	42 (24.85)	29 (26.85)	13 (21.31)	0.538
KPC-2	26 (15.38)	26 (24.07)	0 (0.00)	<0.001*
KPC	26 (15.38)	26 (24.07)	0 (0.00)	<0.001*
CTX-M	19 (11.24)	9 (8.26)	10 (16.39)	0.180
IMP	0 (0)	0 (0)	0 (0)	-
VIM	0 (0)	0 (0)	0 (0)	-
SHV	169 (100.00)	109 (100.00)	61 (100.00)	1.000
Capsular serotypes
K1	44 (26.04)	4 (3.70)	40 (65.57)	<0.001
K2	36 (21.30)	35 (32.41)	1 (1.64)	<0.001
K5	2 (1.18)	2 (1.86)	0 (0.00)	0.537
K20	3 (1.78)	3 (2.78)	0 (0.00)	0.554
K54	2 (1.18)	2 (1.85)	0 (0.00)	0.537
K57	5 (2.96)	3 (2.78)	2 (3.28)	1.000
K64	19 (11.24)	19 (17.59)	0 (0.00)	0.001

p < 0.05 was considered to be statistically significant. Statistically significant values are identified in boldface.