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Table 1 Antimicrobial susceptibility pattern among MDR and non-MDR K. pneumoniae isolates

From: High frequency of multidrug-resistant (MDR) Klebsiella pneumoniae harboring several β-lactamase and integron genes collected from several hospitals in the north of Iran

Antimicrobial agents

No. (%) in MDR-isolates

No. (%) in Non-MDR isolates

S

I

R

S

I

R

LEV

36 (36%)

3 (3%)

19 (19%)

38 (38%)

0 (0%)

4 (4%)

CAZ

10 (10%)

7 (7%)

41 (41%)

32 (32%)

2 (2%)

8 (8%)

CTX

11 (11%)

8 (8%)

39 (39%)

29 (29%)

4 (4%)

9 (9%)

FEP

15 (15%)

5 (5%)

38 (38%)

36 (36%)

3 (3%)

3 (3%)

ETP

35 (35%)

3 (3%)

20 (20%)

38 (38%)

1 (1%)

3 (3%)

AK

45 (45%)

5 (5%)

8 (8%)

41 (41%)

1 (1%)

0 (0%)

MER

17 (17%)

2 (2%)

39 (39%)

39 (39%)

0 (0%)

3 (3%)

CRO

14 (14%)

6 (6%)

38 (38%)

35 (35%)

3 (3%)

4 (4%)

SAM

1 (1%)

1 (1%)

56 (56%)

0 (0%)

5 (5%)

37 (37%)

CFP

11 (11%)

4 (4%)

43 (43%)

32 (32%)

1 (1%)

9 (9%)

IPM

26 (26%)

2 (2%)

30 (30%)

39 (39%)

0 (0%)

3 (3%)

NIT

2 (2%)

3 (3%)

53 (53%)

25 (25%)

13 (13%)

4 (4%)

GM

40 (40%)

1 (1%)

17 (17%)

35 (35%)

1 (1%)

6 (6%)

CIP

31 (31%)

0 (0%)

27 (27%)

65 (65%)

0 (0%)

7 (7%)

TET

22 (22%)

17 (17%)

19 (19%)

33 (33%)

6 (6%)

3 (3%)

SXT

13 (13%)

4 (4%)

41 (41%)

31 (31%)

2 (2%)

9 (9%)

  1. MDR multidrug resistant, S susceptible, I intermediate, R resistant, LEV levofloxacin, CAZ ceftazidime, CTX cefotaxime, FEP cefepime, ETP ertapenem, AK amikacin, MER meropenem, CRO ceftriaxone, SAM ampicillin/sulbactam, CFP cefoperazone, IPM imipenem, NIT nitrofurantoin, GM gentamicin, CIP ciprofloxacin, TET tetracycline, SXT trimethoprim-sulfamethoxazole