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. 2025 Jan 6;11(1):e41670. doi: 10.1016/j.heliyon.2025.e41670

Table 3.

The correlation between multidrug-resistant, extensively drug-resistant, and pan-drug-resistant and CRISPR/Cas systems prevalent in isolates of P. aeruginosa.

MDR/XDR/PDR CRISPR/Cas Positive
No. (%)		 CRISPR/Cas Negative
No. (%)		 Number of strains
MDR1 0 (0.0) 20 (100.0) 20 (20.0 %)
XDR2 2 (18.2) 9 (81.8) 11 (11.0 %)
PDR2 2 (9.1) 20 (90.9) 22 (22.0 %)
CR3 4 (12.1) 29 (87.9) 33 (33 %)

MDR: Multidrug resistance; XDR: Extensively drug-resistance; PDR: Pan-drug resistance; 1 All MDR isolates produced ESBLs; 2 The XDR and PDR categories mainly comprised metallo-β-lactamase producers, carbapenemases (CRs); while 3 represents the combination of PDR and XDR.