TABLE 1.
Enterobacteriaceae isolates reported to Project ICARE as intermediate or resistant to imipenem
| Organisma,b | No. reported as intermediate or resistantc | No. intermediate or resistant by Project ICARE testingd | Category agreement
|
|
|---|---|---|---|---|
| No. of major errors | No. of minor errors | |||
| Citrobacter freundii complex | 1 | 1 | ||
| Citrobacter werkmanii | 1 | 1 | ||
| Enterobacter aerogenes | 7 | 1 | 4 | 3 |
| Enterobacter amnigenus | 1 | 1 | 1 | |
| Enterobacter cloacae | 3 | 2 | 1 | |
| Enterobacter taylorae | 1 | 1 | ||
| Escherichia coli | 13 | 13 | ||
| Hafnia alvei | 1 | 1 | ||
| Klebsiella oxytoca | 2 | 1 | 1 | |
| Klebsiella pneumoniae | 8 | 2 | 5 | 1 |
| Morganella morganii | 14 | 6 | 8 | |
| Proteus mirabilis | 37 | 4 | 21 | 14 |
| Proteus penneri | 1 | 1 | ||
| Proteus vulgaris | 6 | 5 | 1 | |
| Providencia rettgeri | 3 | 3 | ||
| Providencia stuartii | 12 | 8 | 4 | |
| Serratia marcescens | 11 | 2 | 8 | 1 |
| Shigella spp. | 1 | 1 | ||
| Total | 123 | 11 (8.9%) | 81 (65.9%) | 35 (28.5%) |
a
If more than one colony type was sent, only the most resistant was included in the analysis.
b
Identification by Project ICARE central laboratory.
c
Methods used by hospital laboratories to test isolates were MicroScan and Vitek instruments.
d
Isolates were tested by the Project ICARE central laboratory using BMD.