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Table 2 Types of β-lactamases produced by extended-spectrum β-lactamase (ESBL)-producing Escherichia coli according to the locations of acquisition.

From: Molecular epidemiology of extended-spectrum β-lactamase-producing Escherichia coli in the community and hospital in Korea: emergence of ST131 producing CTX-M-15

β-lactamase Total (n = 139) Hospital-onset (n = 60) Community-onset
    Total (n = 79) Healthcare-associated (n = 46) Community-associated (n = 33)
CTX-M-14 69 (49.6) 24 (40) 45 (56.9) 23 (60.0) 22 (66.7)
 CTX-M-14 17 7 10 6 4
 CTX-M-14 + TEM-1b 43 14 29 15 14
 CTX-M-14 + OXA-1 1 0 1 0 1
 CTX-M-14 + TEM-1b + OXA-1 8 3 5 2 3
CTX-M-15 53 (38.1) 20 (33.3) 33 (41.8) 22 (47.8) 11 (33.3)
 CTX-M-15 8 2 6 3 3
 CTX-M-15 + TEM-1b 16 4 12 7 5
 CTX-M-15 + OXA-1 10 3 7 4 3
 CTX-M-15 + TEM-1b + OXA-1 19 11 8 8 0
CTX-M-14 + M-15 17 (12.2) 16 (26.7) 1 (1.3) 1 (2.2) 0 (0)
 CTX-M-14 + M-15 + TEM-1b 4 4 0 0 0
 CTX-M-14 + M-15 + OXA-1 1 1 0 0 0
 CTX-M-14 + M-15 + TEM-1b + OXA-1 11 10 1 1 0
 CTX-M-14 + M-15 + TEM-1b + OXA-1 + SHV-1 1 1 0 0 0
  1. Data are no. (%) of isolates, unless otherwise indicated.