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. Author manuscript; available in PMC: 2021 Nov 8.
Published in final edited form as: Am J Infect Control. 2018 Oct 6;47(2):175–179. doi: 10.1016/j.ajic.2018.08.001

Table 3.

Characteristics of CRE isolates grouped by CRE definition.

Definition
VA1 VA2 CDC1 CDC2
No. of CRE isolatesa 369 (1.7%) 308 (1.4%) 316 (1.5%) 404 (1.9%)
No. of unique patientsb 149 (2.1%) 127 (1.8%) 116 (1.7%) 174 (2.5%)
Organism isolated
E. coli 17 (11.4%) 16 (12.6%) 8 (6.9%) 23 (13.2%)
Klebsiella spp. 93 (62.4%) 88 (69.3%) 85 (73.3%) 105 (60.3%)
Enterobacter spp. 39 (26.2%) 23 (18.1%) 23 (19.8%) 46 (26.4%)
Culture source
 Urine 99 (66.4%) 87 (68.5%) 81 (69.8%) 119 (68.4%)
 Blood 11 (7.4%) 8 (6.3%) 9 (7.8%) 12 (6.9%)
 Sputum 20 (13.4%) 14 (11.0%) 12 (10.3%) 21 (12.1%)
 Otherc 19 (12.8%) 18 (14.2%) 14 (12.1%) 22 (12.6%)
No. of CRE isolates by facility complexity and location
 1a-1c (High) 363 (98.4%) 297 (96.4%) 309 (97.8%) 392 (97.0%)
 2-3 (Low) 6 (1.6%) 11 (3.6%) 7 (2.2%) 12 (3.0%)
 Urban 368 (99.7%) 305 (99.0%) 314 (99.4%) 401 (99.3%)
 Rural 1 (0.3%) 3 (1.0%) 2 (0.6%) 3 (0.7%)

CRE, carbapenem-resistant Enterobacteriaceae

a

Out of 21,514 total E. coli, Klebsiella spp., and Enterobacter spp. isolates

b

Out of 6,974 unique patients with at least one E. coli, Klebsiella spp., and/or Enterobacter spp. isolate

c

Wound, tissue, and fluid