Table 3 Antibiotics susceptibility of Pseudomonas aeruginosa and P. putida keratitis during the 1998–2017 period

 Ticarcillin

17/20 (85.0)

0/7 (0.0)

< 0.001*

 Tic/clav

20/27 (74.1)

0/16 (0.0)

< 0.001

 Piperacillin

28/29 (96.6)

12/16 (75.0)

0.047*

 Pip/tazo

18/19 (94.7)

12/16 (75.0)

0.156*

 Carbenicillin

10/14 (71.4)

–

–

 Amp/sul

0/17 (0.0)

0/12 (0.0)

–

 Cefotaxime

0/28 (0.0)

1/16 (6.3)

0.364*

 Ceftazidime

31/33 (93.9)

14/16 (87.5)

0.588*

 Cefepime

30/31 (96.8)

15/16 (93.8)

1.000*

 Aztreonam

16/29 (55.2)

1/16 (6.3)

0.001

 Imipenem

33/33 (100.0)

13/16 (81.3)

0.030*

 Meropenem

28/28 (100.0)

14/16 (87.5)

0.127*

 Amikacin

30/33 (90.9)

16/16 (100.0)

0.541*

 Gentamicin

30/33 (90.9)

15/16 (93.8)

1.000*

 Tobramycin

14/15 (93.3)

7/7 (100.0)

1.000*

 Netilmicin

2/2 (100.0)

3/4 (75.0)

1.000*

 Isepamicin

2/2 (100.0)

3/4 (75.0)

1.000*

 Ciprofloxacin

28/29 (96.6)

14/16 (87.5)

0.285*

 Levofloxacin

6/7 (85.7)

6/7 (85.7)

1.000*

 Pipemidic acid

3/4 (75.0)

–

–

 Tigecycline

2/16 (12.5)

1/9 (11.1)

1.000*

 TMP/SMX

0/28 (0.0)

0/16 (0.0)

–

 Colistin

18/18 (100.0)

15/15 (100.0)

–