Table 2 ESBL-screen positive strain percentages of HA and CA derived from IAIs (n/n, %)
Organism | Â | Â | 2012 N (%) | 2013 N (%) | 2014 N (%) | Total N (%) | P-value |
|---|---|---|---|---|---|---|---|
ESBL+ strains in IAIs | Total | 767/1917 (40.0) | 626/1665 (37.6)a | 507/1578 (32.1)a | 1900/5160 (36.8)a | 0.0038 | |
CA | 166/465 (35.7) | 121/375 (32.3) | 204/598 (34.1) | 491/1438 (34.1) | 0.7651 | ||
HA | 601/1452 (41.4) | 503/1277 (39.4) | 295/959 (30.8) | 1399/3688 (37.9) | 0.0011 | ||
E. coli ESBL+ | Of all E. coli | Total | 599/887 (67.5) | 469/772 (60.8)a | 403/684 (58.9)a | 1471/2343 (62.8)a | 0.1978 |
CA | 138/234 (59.0) | 99/192 (51.6) | 162/269 (60.2) | 399/695 (57.4) | 0.5920 | ||
HA | 461/653 (70.6) | 368/575(64.0) | 236/406 (58.1) | 1065/1634 (65.2) | 0.1528 | ||
Of all ESBL+ IAI isolates | 599/767 (78.1) | 469/626 (74.9) | 403/507 (79.5) | 1471/1900 (77.4) | 0.7905 | ||
K. pneumoniae ESBL+ | Of all K. pneumoniae | Total | 136/337 (40.4) | 145/381 (38.1) | 85/319 (26.6)a | 366/1037 (35.3)a | 0.0215 |
CA | 27/87 (31.0) | 21/85 (24.7) | 33/112 (29.5) | 81/284 (28.5) | 0.7703 | ||
HA | 109/250 (43.6) | 124/295 (42.0) | 49/201 (24.4) | 282/746 (37.8) | 0.0060 | ||
Of all ESBL+ IAI isolates | 136/767 (17.7) | 145/626 (23.2) | 85/507 (16.8) | 366/1900 (19.3) | 0.0448 | ||
P. mirabilis ESBL+ | Of all P. mirabilis | Total | 24/48 (50.0) | 8/32 (25.0) | 12/29 (41.4) | 44/109 (40.4) | 0.3265 |
CA | 0/11 (0.0) | 1/10 (10.0) | 3/9 (33.3) | 4/30 (13.3) | 0.1680 | ||
HA | 24/37 (64.9) | 7/22 (31.8) | 9/20 (45.0) | 40/79 (50.6) | 0.3411 | ||
Of all ESBL+ IAI isolates | 24/767 (3.1) | 8/626 (1.3) | 12/507 (2.4) | 44/1900 (2.3) | 0.1715 | ||
K. oxytoca ESBL+ | Of all K. oxytoca | Total | 8/21 (38.1) | 4/18 (22.2) | 7/31 (22.6) | 19/70 (27.1)a | 0.6073 |
CA | 1/3 (33.3) | 0/5 (0) | 6/19 (31.6) | 7/27 (25.9) | 0.4672 | ||
HA | 7/18 (38.9) | 4/12 (33.3) | 1/12 (8.3) | 12/42 (28.6) | 0.3426 | ||
Of all ESBL+ IAI isolates | 8/767 (1.0) | 4/626 (0.6) | 7/507 (1.4) | 19/1900 (1.0) | 0.4608 | ||