Table 3.

Gram-Negative Pathogens by Infection Type and Resistance Pattern

CharacteristicNo. of Gram-Negative PathogensaP. aeruginosaE. coliKlebsiella
spp.
Enterobacter
cloacae
Prevotella spp.Proteus mirabilisOtherb
Total No. of pathogens1368618943313
Infection type
 Bone and joint40 (29)25 (29)5 (28)2 (22)1 (25)1 (33.3)1 (33.3)5 (39)b,c,d
 Urinary tract32 (24)22 (26)4 (22)3 (33)1 (25)2 (15)e,f
 Respiratory tract24 (18)20 (23)2 (22)1 (33.3)1 (8)g
 Intra-abdominal21 (15)7 (8)7 (39)1 (11.5)1 (25)1 (33.3)1 (33.3)3 (23)d
 Skin and soft tissue16 (12)10 (12)2 (11)1 (11.5)1 (33.3)2 (15)d
 Bacteremia3 (2)2 (2)1 (25)
No. of resistant pathogens82 (60)61 (71)10 (56)5 (55)2 (50)2 (67)2 (15)
 MDR24 (18)22 (26)1 (11)1 (7.5)f
 ESBL17 (12)9 (50)4 (44)2 (50)2 (67)
 CR5 (3.7)4 (5)1 (7.5)e
 MDR/ESBL1 (0.7)1 (6)
 MDR/CR35 (26)35 (40)
CharacteristicNo. of Gram-Negative PathogensaP. aeruginosaE. coliKlebsiella
spp.
Enterobacter
cloacae
Prevotella spp.Proteus mirabilisOtherb
Total No. of pathogens1368618943313
Infection type
 Bone and joint40 (29)25 (29)5 (28)2 (22)1 (25)1 (33.3)1 (33.3)5 (39)b,c,d
 Urinary tract32 (24)22 (26)4 (22)3 (33)1 (25)2 (15)e,f
 Respiratory tract24 (18)20 (23)2 (22)1 (33.3)1 (8)g
 Intra-abdominal21 (15)7 (8)7 (39)1 (11.5)1 (25)1 (33.3)1 (33.3)3 (23)d
 Skin and soft tissue16 (12)10 (12)2 (11)1 (11.5)1 (33.3)2 (15)d
 Bacteremia3 (2)2 (2)1 (25)
No. of resistant pathogens82 (60)61 (71)10 (56)5 (55)2 (50)2 (67)2 (15)
 MDR24 (18)22 (26)1 (11)1 (7.5)f
 ESBL17 (12)9 (50)4 (44)2 (50)2 (67)
 CR5 (3.7)4 (5)1 (7.5)e
 MDR/ESBL1 (0.7)1 (6)
 MDR/CR35 (26)35 (40)

Abbreviations: CLABSI, central line bloodstream infection; CR, carbapenem-resistant; ESBL, extended-spectrum beta-lactamase; MDR, multidrug-resistant; No., number.

a

Values represent number (%) of gram-negative isolates based on total no. of pathogens.

b

Bacteroides spp. (n = 2).

c

Providencia stuartii (n = 1).

d

Unspecified gram-negative rods.

e

Achromobacter nitrificans (n = 1).

f

Citrobacter koseri (n = 1).

g

Stenotrophomonas maltophilia (n = 1).

Table 3.

Gram-Negative Pathogens by Infection Type and Resistance Pattern

CharacteristicNo. of Gram-Negative PathogensaP. aeruginosaE. coliKlebsiella
spp.
Enterobacter
cloacae
Prevotella spp.Proteus mirabilisOtherb
Total No. of pathogens1368618943313
Infection type
 Bone and joint40 (29)25 (29)5 (28)2 (22)1 (25)1 (33.3)1 (33.3)5 (39)b,c,d
 Urinary tract32 (24)22 (26)4 (22)3 (33)1 (25)2 (15)e,f
 Respiratory tract24 (18)20 (23)2 (22)1 (33.3)1 (8)g
 Intra-abdominal21 (15)7 (8)7 (39)1 (11.5)1 (25)1 (33.3)1 (33.3)3 (23)d
 Skin and soft tissue16 (12)10 (12)2 (11)1 (11.5)1 (33.3)2 (15)d
 Bacteremia3 (2)2 (2)1 (25)
No. of resistant pathogens82 (60)61 (71)10 (56)5 (55)2 (50)2 (67)2 (15)
 MDR24 (18)22 (26)1 (11)1 (7.5)f
 ESBL17 (12)9 (50)4 (44)2 (50)2 (67)
 CR5 (3.7)4 (5)1 (7.5)e
 MDR/ESBL1 (0.7)1 (6)
 MDR/CR35 (26)35 (40)
CharacteristicNo. of Gram-Negative PathogensaP. aeruginosaE. coliKlebsiella
spp.
Enterobacter
cloacae
Prevotella spp.Proteus mirabilisOtherb
Total No. of pathogens1368618943313
Infection type
 Bone and joint40 (29)25 (29)5 (28)2 (22)1 (25)1 (33.3)1 (33.3)5 (39)b,c,d
 Urinary tract32 (24)22 (26)4 (22)3 (33)1 (25)2 (15)e,f
 Respiratory tract24 (18)20 (23)2 (22)1 (33.3)1 (8)g
 Intra-abdominal21 (15)7 (8)7 (39)1 (11.5)1 (25)1 (33.3)1 (33.3)3 (23)d
 Skin and soft tissue16 (12)10 (12)2 (11)1 (11.5)1 (33.3)2 (15)d
 Bacteremia3 (2)2 (2)1 (25)
No. of resistant pathogens82 (60)61 (71)10 (56)5 (55)2 (50)2 (67)2 (15)
 MDR24 (18)22 (26)1 (11)1 (7.5)f
 ESBL17 (12)9 (50)4 (44)2 (50)2 (67)
 CR5 (3.7)4 (5)1 (7.5)e
 MDR/ESBL1 (0.7)1 (6)
 MDR/CR35 (26)35 (40)

Abbreviations: CLABSI, central line bloodstream infection; CR, carbapenem-resistant; ESBL, extended-spectrum beta-lactamase; MDR, multidrug-resistant; No., number.

a

Values represent number (%) of gram-negative isolates based on total no. of pathogens.

b

Bacteroides spp. (n = 2).

c

Providencia stuartii (n = 1).

d

Unspecified gram-negative rods.

e

Achromobacter nitrificans (n = 1).

f

Citrobacter koseri (n = 1).

g

Stenotrophomonas maltophilia (n = 1).

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