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Table 4 Presence of carbapenemase* and Mrc1 genes in isolates by organism, Thailand, 2016–2018

From: Molecular epidemiology of carbapenem-resistant Enterobacterales in Thailand, 2016–2018

  n (% of isolates by organism) P value
Carbapenemase Gene Total
(N = 3946)
Organisms
Klebsiella pneumoniae
(N = 2659)
Escherichia coli
(N = 799)
Enterobacter cloacae
(N = 113)
Citrobacter freundii
(N = 12)
Other
(N = 102)
NDM 2501 (63) 1577 (55) 776 (94) 736 (59) 11 (100) 64 (65)  < .0001
OX-48-like 1892 (48) 1703 (59) 149 (18) 27 (22) 1 (9) 12 (12)  < .0001
IMP 97 (2) 46 (2) 1 (< 1) 31 (25) 0 (0) 19 (19)  < .0001
No CP Gene 102 (3) 74 (3) 9 (1) 18 (16) 0 (0) 1 (1)  < .0001
Mcr1 10 (< 1) 5 (< 1) 5 (1) 0 (0) 0 (0) 0 (0) 0.23
  1. *Not mutually exclusive: 634 had NDM and OXA and 7 had IMP and OXA, 5 had NDM and IMP, 6 Mcr1 and NDM, 3 Mcr1 and OXA-48-like
  2. *No VIM or KPC
  3. p-value using chi-square or fisher exact test to compare presence of carbapenemase genes and MCR-1 across organisms