Table 1 Isolation density, resistance rates and incidence density of resistant isolates during the period 2008 – 2013
Year | |||||||
|---|---|---|---|---|---|---|---|
2008 | 2009 | 2010 | 2011 | 2012 | 2013 | p-value* | |
Isolation density | |||||||
( per 1000 patient-days) | |||||||
Klebsiella pneumoniae | 38.0 | 48.5 | 22.3 | 31.9 | 41.6 | 55.9 | 0.497 (0.005, from 2010 to 2013) |
Acinetobacter baumannii | 20.4 | 19.3 | 29.8 | 49.0 | 50.3 | 58.1 | 0.002 |
Resistance rates, % | |||||||
(number of tested isolates) | |||||||
3GC-resistant K. pneumoniae | 88.7 (53) | 69.4 (62) | 41.9 (43) | 67.2 (64) | 87.0 (69) | 81.6 (98) | 0.806 (0.045 from 2010 to 2012) |
ESBL-producing K. pneumoniae among 3GC-resistant K. pneumoniae | 100 | 100 | 100 | 44.2 | 98.3 | 93.8 | 0.674 |
(39) | (42) | (18) | (43) | (59) | (80) | ||
Carbapenem-resistant K. pneumoniae | 0 (53) | 9.7 (62) | 2.3 (43) | 37.5 (64) | 63.8 (69) | 59.2 (98) | 0.010 |
Carbapenem resistant A. baumannii | 87.5 (14) | 95.0 (19) | 96.2 (51) | 98.9 (92) | 93.2 (68) | 96.6 (85) | 0.021 |
Incidence density of resistant isolates ( per 1,000 patient-days) | |||||||
3GC-resistant K. pneumoniae | 25.9 | 25.1 | 8.9 | 19.3 | 32.8 | 35.5 | 0.367 (0.027 from 2010 to 13) |
ESBL-producing K. pneumoniae among 3GC-resistant K. pneumoniae | 21.5 | 24.6 | 8.9 | 8.5 | 31.7 | 33.2 | 0.436 |
Carbapenem-resistant K. pneumoniae | 0 | 3.5 | 0.5 | 10.8 | 24.1 | 25.7 | 0.009 |
Carbapenem-resistant A. baumannii | 7.7 | 11.1 | 25.3 | 41.3 | 37.2 | 37.7 | 0.014 |