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Table 7 Antibiotic resistance pattern in A. baumannii based on seasons

From: Assessment of antibiotic resistance changes during the Covid-19 pandemic in northeast of Iran during 2020–2022: an epidemiological study

Antibiotic

Season

Winter 2020

Spring 2020

Summer 2020

Fall 2020

Winter 2021

Spring 2021

Summer 2021

Fall 2021

Winter 2022

P value

SAM

2 (100)

16 (48.4)

32 (82)

9 (90)

17 (100)

22 (75.8)

21 (95.4)

33 (73.3)

35 (81.3)

 < 0.001

CAZ

6 (66.6)

32 (86.4)

31 (93.9)

18 (100)

5 (100)

25 (96.1)

22 (100)

43 (97.7)

44 (97.7)

 < 0.001

CIP

2 (100)

0 (0)

1 (33.3)

0.138

LEV

4 (100)

21 (72.4)

42 (84)

17 (89.4)

21 (100)

10 (100)

14 (87.5)

32 (86.4)

37 (94.8)

 < 0.001

IMI

22 (81.4)

36 (87.8)

44 (78.5)

18 (81.8)

26 (96.2)

22 (100)

3 (100)

12 (100)

23 (100)

 < 0.001

MEM

21 (80.7)

35 (83.3)

46 (80.7)

18 (78.2)

26 (100)

36 (97.2)

26 (100)

38 (95)

2 (100)

 < 0.001

GM

13 (86.6)

31 (88.5)

43 (84.3)

17 (80.9)

6 (46.1)

11(42.3)

4 (57.1)

14 (50)

 < 0.001

AK

11 (100)

29 (85.2)

41 (78.8)

18 (85.7)

15 (71.4)

16 (50)

16 (72.7)

5 (71.4)

0 (0)

 < 0.001

PTZ

4 (100)

27 (79.4)

48 (85.7)

18 (90)

23 (95.8)

3 (100)

37 (90.2)

39 (97.5)

 < 0.001

CPM

4 (80)

32 (91.4)

49 (89)

16(88.8)

8 (100)

20 (86.9)

15 (100)

11 (84.6)

 < 0.001

CTX

10 (100)

24 (92.3)

39 (86.6)

16 (88.8)

19 (100)

27 (100)

19 (100)

35 (92.1)

44 (100)

 < 0.001

CRO

20 (86.9)

24 (92.3)

49 (90.7)

17 (89.4)

25 (100)

29 (96.6)

23 (95.8)

41 (93.1)

13 (100)

 < 0.001

  1. SAM (Ampicillin-Sulbactam), CAZ (Ceftazidime), CIP (Ciprofloxacin), LEV (Levofloxacin), IMI (Imipenem), MEM (Meropenem), GM (Gentamicin), AK (Amikacin), PTZ (Piperacillin-Tazobactam), CPM (Cefepime), CTX (Cefotaxime), and CRO (Ceftriaxone).
  2. Variables were described as the frequency (%).
  3. *Samples for which antibiotic resistance testing has not been performed are marked with "–".