Table 3 Median resistance with interquartile range of selected Gram negative bacteria to all tested antibiotics

Amikacin

(240)

32.7(0–63.6)

(29)

5.8(0–15.4)

(5422)

0.2(0–24.5)

*NC

(1458)

12.6(1.6–37.7)

NC

NC

(251)

16.7(0–67.6)

(476)

(6.5–50)

(433)

4.9(0.2–15.5)

NC

Amoxicillin

NC

(71)

78.5(73.4–95.8)

(5500)

88.1(81.4–92.6)

NC

(524)

100(86.8–100)

NC

NC

(409)

82(48.8–91.4)

(230)

84.8(19.2–98.2)

(150)

69.2(44.0–77.3)

NC

Ampicillin

(188)

100(92.5–100)

(59)

100(66.1–100)

(2951)

86.7(69.2–96.7)

(18)

100(76.6–100)

(1259)

100(93.4–100)

NC

NC

(685)

42.3(28.3–84.7)

(820)

100(94.5–100)

(380)

57.8(21.2–75)

(110)

51.1(45.0–61.6)

Amoxicillin and Clavulanic Acid

(56)

94.1(15–100)

(53)

34.8(0–100)

(6764)

43.5(30.8–61.9)

(35)

22.2(0–39.5)

(2043)

55.4(35.7–73.2)

NC

(357)

0(0–53.4)

(730)

21.2(0–56.3)

(852)

50(3.1–91.9)

(558)

6.1(0.6–15.1)

NC

Azithromycin

NC

NC

NC

NC

NC

(199)

4.2(2.2–33.3)

(1120)

0(0–5.2)

NC

NC

(197)

0(0–0.5)

NC

Cefotaxime

(205)

90.9(41.7–100)

(58)

29.2(9.1–72.8)

(5173)

26.8(8.3–64.5)

NC

(1199)

50(32.5–76.4)

(96)

0(0–3.4)

(1099)

2.1(0–11.7)

(324)

20.8(0.3–57.6)

(288)

88.5(18.3–100)

(509)

0(0–1.2)

NC

Ceftazidime

(260)

81.5(36.1–90.8)

(60)

45(9.8–78.6)

(2773)

19.5(10.0–55.8)

NC

(1412)

46.5(12.7–62.9)

NC

NC

(463)

30.9(4.7–39.9)

(1216)

29(25–46.9)

(512)

1.2(0–39.0)

(354)

0(0–22.2)

Ceftriaxone

(69)

74.2(38.3–100)

(116)

25.3(0–77.2)

(2800)

31.5(6.9–47.7)

(88)

20.4(0–57.1)

(1547)

47.3(25–62.8)

(584)

0

(807)

9(0.2–41.8)

(755)

17(1.1–35.3)

(915)

30.6(4.5–78.5)

(150)

0(0–19.5)

NC

Cefuroxime

(31)

75(45.8–100)

NC

(3925)

30(19.7–51.2)

NC

(947)

51.9(35.8–83.2)

NC

NC

(124)

30.7(1.1–59.2)

NC

NC

NC

Cefoxitin

NC

NC

(535)

8.3(2.9–44.1)

NC

NC

NC

NC

NC

NC

NC

NC

Cefepime

(79)

50(0–75.2)

NC

(957)

21.8(5.8–42.5)

NC

NC

NC

NC

NC

NC

NC

NC

Cefalotin

NC

NC

(515)

56.9(23.5–63.5)

NC

(154)

55.7(42.4–76)

NC

NC

NC

NC

(145)

6.8(2.4–35.3)

(201)

3.8(0–8.5)

Chloramphenicol

(47)

100(60.4–100)

(88)

70.8(18.8–91.7)

(2963)

40.9(11.3–58.0)

(56)

28.6(10.9–100)

(1046)

62.8(48.9–91.5)

NC

(1982)

60.5(34.9–88)

(538)

50(14.3–76.4)

(691)

67(33.8–91.7)

(348)

43.1(25–60)

(65)

11.1(9.1–27.8)

Ciprofloxacin

(47)

29.9(12.1–74.9)

(147)

10(0–31.2)

(7877)

23.2(7.7–35.6)

(28)

14.6(3.1–79.2)

(2473)

24.3(7.8–35.4)

(658)

37.5(30.7–83.9)

(1147)

0.4(0–15.7)

(924)

7.2(0–27.4)

(1083)

16.1(2–38.4)

(562)

0(0–11.7)

(386)

0(0–5.4)

Trimethoprim/

Sulfamethoxazole

(133)

80.4(54.5–100)

(122)

85.7(64.3–100)

(7493)

80.7(69.8–85.6)

(54)

83.8(0–100)

(2093)

67.8(60.5–93.0)

(72)

92.6(25–100)

(1981)

60.5(40–88.8)

(833)

61.3(39.1–78.7)

(912)

92(75.7–100)

(1001)

52.8(29.4–72.9)

(392)

83.3(39.9–88)

Doxycycline

NC

NC

(302)

54.5(12.8–72.3)

NC

(531)

67.8(60.5–93.0)

NC

NC

NC

NC

NC

NC

Erythromycin

NC

NC

(675)

81.6(29.9–86.5)

NC

(444)

58.9(39.8–82.6)

NC

NC

NC

(501)

77.3(40.8–100)

NC

NC

Gentamicin

(288)

61.1(25–86)

(143)

37.5(0–48.4)

(8282)

29.8(8.4–45.3)

(35)

59.4(8.9–100)

(2691)

41.7(24.1–66.7)

(88)

28.6(0–55.2)

(1657)

11.9(4.9–37)

(1027)

13.5(0–34)

(1554)

29.4(17.7–44.5)

(801)

2.3(0–21.7)

(365)

5.9(0.2–23.2)

Imipenem

(230)

2(0–23)

NC

(1613)

0.2(0–5.5)

NC

(1002)

0(0–6.3)

NC

NC

(21)

10.7(0–67.8)

(486)

6(0–51.8)

NC

NC

Levofloxacin

NC

NC

(751)

19.2(8.7–47.6)

NC

(246)

15.6(8.6–62.7)

NC

NC

(138)

42.7(4.7–91.7)

(77)

25.8(16.5–36.5)

NC

NC

Meropenem

(24)

40(0–44.4)

NC

(3402)

0(0–5.7)

NC

(711)

3.6(0–11.7)

NC

NC

(154)

1(0–1.6)

(138)

15.8(0–32)

NC

NC

Nalidixic Acid

NC

(39)

42.9(41.7–62.2)

(2960)

36(12.7–53.8)

NC

(507)

35.2(14.8–53)

NC

(1007)

10.6(4.4–19.6)

(166)

59.3(34–93.8)

(101)

78.4(54.2–90.8)

(537)

5.7(0.6–19.3)

(367)

0.6(0–17.3)

Nitrofurantoin

(27)

60(0–75)

(52)

40.6(25–52.3)

(5087)

14(4.5–25.1)

NC

(957)

24.0(13–54.7)

NC

NC

(257)

56.3(33.1–84.2)

(151)

76.5(65.9–80)

NC

NC

Norfloxacin

(39)

34.5(6.3–86)

(89)

41(0–35.6)

(876)

25.6(15.0–46.3)

NC

(518)

31.2(5.6–43.6)

NC

NC

(303)

0(0–3.3)

(578)

17(0–75)

NC

NC

Ofloxacin

NC

NC

(1294)

30.4(9.8–47.9)

NC

(733)

17(0–23.4)

NC

(1007)

73.2(43.7–90.5)

(322)

29(0–67)

NC

NC

NC

Oxacillin

NC

NC

(411)

91.5(22.2–98.5)

NC

NC

NC

NC

(128)

46.7(11.9–82.9)

(474)

100(33.3–100)

NC

NC

Penicillin

NC

NC

(43)

62(52.9–90.6)

NC

NC

(564)

75(52.4–100)

NC

NC

NC

NC

NC

Piperacillin

(78)

50(41.7–75)

NC

(132)

58.4(35.1–95.0)

NC

NC

NC

NC

NC

NC

NC

NC

Piperacillin/

Tazobactam

(83)

33.6(12.7–80.1)

NC

(235)

21(11.1–30.6)

NC

NC

NC

NC

NC

(95)

14.6(2.6–45.8)

NC

NC

Tetracycline

(90)

73(62.2–100)

(72)

83.3(45–100)

(2896)

76.2(72.6–87.9)

(43)

25(11.1–25)

(744)

68(58.7–89.4)

(544)

91.7(63.6–100)

(1532)

37.1(22.4–66.3)

(455)

88.2(56.4–95.8)

(352)

100(81.8–100)

(309)

43(7.5–72.3)

(92)

54.5(22.2–71.1)

Tobramycin

NC

NC

(677)

32(12.3–43.2)

NC

(207)

55(13.0–67.8)

NC

NC

NC

NC

NC

NC