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Table 1 Antibiotic resistance patterns of 165 isolates of K. pneumoniae and E. coli

From: Molecular characteristics of antibiotic-resistant Escherichia coli and Klebsiella pneumoniae strains isolated from hospitalized patients in Tehran, Iran

Species (no (%) of isolates)

Antibiotic resistance patterns

ATM

GM

CIP

TS

AK

CTX

CAZ

FEP

NA

PIP

TGC

DOR

ETP

IMI

MEM

PTZ

FOT

E. coli (113)

Susceptible

18 (15.9%)

65 (57.5%)

5 (4.4%)

16 (14.2%)

54 (47.8%)

0

7 (6.2%)

6 (5.3%)

2 (1.8%)

1 (0.9%)

104 (92%)

56 (49.6%)

49 (43.4%)

83 (73.5%)

70 (61.9%)

59 (52.2%)

94 (83.2%)

Intermediate

17 (15%)

12 (10.6%)

13 (11.5%)

1 (0.9%)

37 (32.7%)

9 (8%)

7 (6.2%)

11 (9.7%)

6 (5.3%)

2 (1.8%)

6 (5.3%)

35 (31%)

32 (28.3%)

18 (15.9%)

21 (18.6%)

28 (24.8%)

7 (6.2%)

Resistant

78 (69%)

36 (31.9%)

95 (84.1%)

96 (85%)

22 (19.5%)

104 (92%)

99 (87.6%)

96 (85%)

105 (92.9%)

110 (97.3%)

3 (2.7%)

22 (19.5%)

32 (28.3%)

12 (10.6%)

22 (19.5%)

26 (23%)

12 (10.6%)

K. pneumoniae (52)

Susceptible

6 (11.5%)

10 (19.2%)

3 (5.8%)

4 (7.7%)

13 (25%)

0

1 (1.9%)

1 (1.9%)

0

0

32 (61.5%)

7 (13.5%)

12 (23.1%)

13 (25%)

20 (38.5%)

9 (17.3%)

36 (69.2%)

Intermediate

12 (23.1%)

8 (15.4%)

4 (7.7%)

0

4 (7.7%)

3 (5.8%)

2 (3.8%)

15 (28.8%)

3 (5.8%)

1 (1.9%)

14 (26.9%)

7 (13.5%)

3 (5.8%)

3 (5.8%)

0

7 (13.5%)

2 (3.8%)

Resistant

34 (65.4%)

34 (65.4%)

45 (86.5%)

48 (92.3%)

35 (67.3%)

49 (94.2%)

49 (94.2%)

36 (69.2%)

49 (94.2%)

51 (98.1%)

6 (11.5%)

38 (73.1%)

37 (71.2%)

36 (69.2%)

32 (61.5%)

36 (69.2%)

14 (26.9%)

  1. ATM aztreonam, GM gentamicin, CIP ciprofloxacin, TS trimethoprim-sulfamethoxazole, AK Amikacin, CTX cefotaxime, CAZ ceftazidime, FEP cefepime, NA nalidixic acid, PIP piperacillin, TGC tigecycline, DOR doripenem, ETP ertapenem, IMI imipenem, MEM meropenem, PTZ piperacillin/tazobactam, FOT fosfomycins