Table 3.
Prevalence of resistance determinants among different sequence types (STs)
| ST69 | ST73 | ST95 | ST127 | ST131 | |
|---|---|---|---|---|---|
| Resistance genes | Positive isolates, n (%) | ||||
| blaOXA-48 | 3 (12.5) | 1 (7.7) | 1 (6.7) | 0 | 25 (32.5) |
| P-valuea | 0.008 | 0.001 | |||
| blaNDM | 0 | 0 | 0 | 0 | 14 (18.2) |
| P-value | 0.001 | ||||
| blaTEM | 20 (83.3) | 6 (46.2) | 8 (53.3) | 16 (72.7) | 51 (66.2) |
| blaSHV | 8 (33.3) | 5 (38.5) | 7 (46.7) | 7 (33.3) | 35 (46.1) |
| qnrB | 7 (29.2) | 3 (23.1) | 3 (20) | 2 (9.1) | 15 (19.5) |
| qnrS | 11 (45.8) | 1 (7.7) | 1 (6.7) | 3 (13.6) | 9 (11.7) |
| P-value | 0.0001 | ||||
| aac6Ib-cr | 9 (37.5) | 5 (38.5) | 8 (53.3) | 16 (72.7) | 50 (64.9) |
| P-value | 0.04 | ||||
| aac6Ib | 8 (33.3) | 5 (38.5) | 3 (20) | 16 (72.7) | 48 (62.3) |
| P-value | 0.045 | 0.01 | 0.02 | ||
| aac3IIa | 9 (37.5) | 3 (23.1) | 6 (40) | 16 (72.7) | 47 (61) |
| P-value | 0.03 | ||||
| armA | 5 (20.8) | 1 (7.7) | 1 (6.7) | 2 (9.1) | 5 (6.5) |
| P-value | 0.05 | ||||
| CTX-M-G1 | 19 (79.2) | 6 (46.2) | 12 (80) | 17 (77.3) | 64 (83.1) |
| P-value | 0.008 | ||||
| CTX-M-G2 | 1 (4.2) | 0 | 0 | 1 (4.5) | 1 (1.3) |
| CTX-M-G8 | 0 | 0 | 0 | 3 (13.6) | 6 (7.8) |
| CTX-M-G9 | 14 (58.3) | 6 (46.3) | 9 (60) | 11 (50) | 22 (28.6) |
| P-value | 0.002 | ||||
| CTX-M-G25 | 0 | 0 | 1 (6.7) | 0 | 24 (31.2) |
| P-value | 0.01 | 0.02 | 0.0001 | ||
Notes:
a
P-values shown for differences that were statistically significant (P<0.05). Bold values indicate significant associations (P≤0.05); underlining indicates negative associations.