Table 4. The differences in molecular characteristics of isolates according to specimens or regions.
| Specimen | Region | ||||||
|---|---|---|---|---|---|---|---|
| Blood (n = 25) | Urine (n = 97) | P-value | Metropolitan area (n = 94) | Gyeongsang area (n = 28) | P-value | ||
| Major clones (%) | |||||||
| ST131 | 6 (24.0) | 29 (29.9) | 0.561 | 27 (28.7) | 8 (28.6) | 0.988 | |
| ST393 | 3 (12.0) | 15 (15.5) | 1.000 | 17 (18.1) | 1 (3.6) | 0.070 | |
| ST1193 | 2 (8.0) | 14 (14.4) | 0.521 | 12 (12.8) | 4 (14.3) | 0.760 | |
| ST38 | 2 (8.0) | 9 (9.3) | 1.000 | 10 (10.6) | 1 (3.6) | 0.454 | |
| ST405 | 0 (0.0) | 10 (10.3) | 0.212 | 7 (7.4) | 3 (10.7) | 0.695 | |
| Subtotal | 13 (52.0) | 77 (79.4) | 0.006 | 73 (77.6) | 17 (60.7) | 0.074 | |
| ESBL/PABL (%) | |||||||
| All | 5 (20.0) | 30 (30.9) | 0.281 | 24 (25.5) | 11 (39.3) | 0.158 | |
| CTX-M-14 | 1 (4.0) | 13 (13.4) | 0.296 | 13 (13.8) | 1 (3.6) | 0.186 | |
| CTX-M-15 | 3 (12.0) | 12 (12.4) | 1.000 | 7 (7.4) | 8 (28.6) | 0.006 | |
| PMQR (%) | |||||||
| All | 4 (16.0) | 9 (9.3) | 0.465 | 9 (9.6) | 4 (14.3) | 0.493 | |
| aac(6')-1b-cr | 4 (16.0) | 7 (7.2) | 0.234 | 8 (8.5) | 3 (10.7) | 0.713 | |
ESBL, Extended-spectrum beta-lactamase; PABL, Plasma-mediated AmpC beta-lactamase; PMQR, plasmid-mediated quinolone resistance.