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Table 4. Antibiotic susceptibility pattern of Gram-negative bacterial isolates in pus samples.

Antibiotics

Pseudomonas spp.

(n=368)

Proteus spp.

(n=95)

E. coli

(n=93)

Klebsiella spp.

(n=64)

Acinetobacter spp. (n=6)

Enterobacter spp. (n=1)

   R

  S

R

 S

 R

 S

R

S

 R

S

R

S

AK

(%)

47

(12.7)

292

(79.3)

1

(1.0)

90

(94.7)

25

(26.8)

67

(72)

21

(32.8)

27

(42.1)

-

6

(100)

 

1

(100)

AMC

(%)

222

(60.3)

27

(7.3)

81

(85.2)

8

(8.4)

93

(100)

-

22

(34.3)

28

(43.7)

6

(100)

 

-

-

AZM

(%)

133

(36.1)

156

(42.3)

8

(8.4)

3

(3.1)

67

(72.0)

26

(27.9)

23

(35.9)

28

(43.7)

6

(100)

 

-

 

CAZ (%)

260

(70.6)

39

(10.5)

88

(92.6)

-

67

(72.0)

-

14

(21.8)

-

6

(100)

 

-

 

CFM (%)

293

(79.6)

4

(1)

88

(92.6)

1

(1)

67

(72.0)

26

(27.9)

49

(76.5)

6

(9.3)

6

(100)

 

1

(100)

 

CH (%)

207

(56.2)

63

(17.1)

79

(83.1)

4

(4.2)

67

(72.0)

-

45

(70.3)

12

(18.7)

6

(100)

 

1

(100)

 

CT (%)

218

(59.2)

56

(16)

17

(17.8)

3

(3.1)

36

(38.7)

-

56

(87.5)

5(7.8)

6

(100)

 

1

(100)

 

CTR (%)

292

(79.3)

22

(5.9)

79

(83.1)

3

(3.1)

67

(72.0)

25

(26.8)

34

(53.1)

15

(23.4)

6

(100)

 

-

 

CXM (%)

213

(57.8)

36

(9.7)

85

(89.4)

1

(1)

67

(72.0)

-

34

(53.1)

1

(1.5)

6

(100)

 

-

 

CIP (%)

89

(24.1)

194

(52.7)

8

(8.4)

76

(80)

30

(32.2)

11

(11.8)

17

(26.5)

33

(51.5)

6

(100)

 

-

1

(100)

DA (%)

233

(63.3)

38

(10.3)

85

(89.4)

1

(1)

92

(98.9)

-

39

(60.9)

7

(10.9)

6

(100)

 

1

(100)

 

FEP (%)

277

(75.2)

29

(7.8)

81

(85.2)

5

(5.2)

58

(62.3)

25

(26.8)

56

(87.5)

4

(6.2)

6

(100)

 

1

(100)

 

FL (%)

205

(55.7)

18

(4.8)

-

-

92

(98.9)

-

3

(4.6)

-

6

(100)

 

-

 

GEN (%)

77

(20.9)

248

(67.3)

4

(4.2)

79

(83.1)

-

92

(98.9)

26

(40.6)

4

(6.2)

-

 

-

 

MEM (%)

59

(16.0)

275

(74.7)

1

(1.0)

90

(94.7)

-

93

(100)

50

(78.1)

8

(12.5)

-

6

(100)

1

(100)

 

NIT (%)

118

(32.0)

41

(11.1)

75

(78.9)

9

(9.4)

25

(26.8)

40

(43)

11

(17.1)

-

6

(100)

 

-

 

LE (%)

67

(18.2)

239

(64.9)

6

(6.3)

80

(84.2)

55

(59.1)

28

(30.1)

16

(25.0)

33

(51.5)

-

6

(100)

-

1

(100)

LNZ (%)

111

(30.1)

210

(57)

78

(82.1)

10

(10.5)

92

(98.9)

-

11

(17.1)

48

(75)

6

(100)

 

-

 

SXT (%)

174

(47.2)

45

(12.2)

81

(85.2)

2

(2.1)

25

(26.8)

37

(39.7)

7

(10.9)

-

6

(100)

 

-

 

TE (%)

172

(46.7)

80

(21.7)

8

(8.4)

6

(6.3)

56

(60.2)

-

42

(65.9)

10

(15)

6

(100)

 

1

(100)

 

AK=Amikacin, AMC=Amoxicillin, AZM=Azithromycin, CAZ=Ceftazidime, CFM=Cefixime, CH=Cephradine, CT=Cephalexin, CTR=Ceftriaxone, CXM=Cefuroxime, CIP=Ciprofloxacin, DA=Clindamycin, FEP=Cefepime, FL=Fluconazole, GEN=Gentamycin, MEM=Meropenem, NIT=Nitrofurantoin, LE=Levofloxacin, LNZ=Linozolid, SXT=Sulfamethoxazole, TE=Tetracycline. R =Resistance, S =Sensitive.