Antibiotic resistance was assessed in clinical P. aeruginosa isolates cultured from the same sputum samples in which Pf phage status was assessed in our cohort. N = 28 Pf phage–negative samples and 20 Pf phage–positive samples. Comparison by Pearson’s χ2 test.
P. aeruginosa + by qPCR | P | ||
Pf phage − | Pf phage + | ||
Mucoid strain | 58.3% | 85.71% | 0.03 |
Ciprofloxacin | 12 (33%) | 6 (29%) | 0.71 |
Tobramycin | 7 (19%) | 7 (33%) | 0.24 |
Aztreonam | 5 (14%) | 7 (33%) | 0.0499 |
Amikacin | 8 (22%) | 14 (67%) | 0.0009 |
Cefepime | 7 (19%) | 8 (38%) | 0.12 |
Ceftazidime | 7 (19%) | 5 (23%) | 0.70 |
Meropenem | 4 (11%) | 10 (48%) | 0.002 |
Piperacillin- tazobactam | 7 (19%) | 5 (24%) | 0.70 |