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Table 5 Distribution of ESBLs genes among three groups of ESBL-producing strains

From: Clinical and microbiological characteristics of nosocomial, healthcare-associated, and community-acquired Klebsiella pneumoniae infections in Guangzhou, China

ESBLs genes Total Nosocomial HCA CA P-value
(n = 131) (n = 40) (n = 70) (n = 21) HCA versus CA versus CA versus
Nosocomial Nosocomial HCA
blaSHV 120 (91.6%) 34 (85.0%) 67 (95.7%) 19 (90.5%) 0.070 0.703 0.326
blaTEM 85 (64.9%) 25 (62.5%) 45 (64.3%) 15 (71.4%) 0.851 0.486 0.545
blaOXA-1-like 6 (4.6%) 0 (0.0%) 5 (7.1%) 1 (4.8%) 0.157 0.344 1.000
blaCTX-M-group 123 (93.9%) 39 (97.5%) 65 (92.9%) 19 (90.5%) 0.414 0.27 0.66
blaCTX-M-1-group 55 (42.0%) 10 (25.0%) 31 (44.3%) 14 (66.7%) 0.044 0.002 0.072
blaCTX-M-9-group 68 (51.9%) 26 (65.0%) 36 (51.4%) 6 (28.6%) 0.167 0.007 0.065
blaSHV and blaCTX-M-1-group 51 (38.9%) 8 (20.0%) 30 (42.9%) 13 (61.9%) 0.015 0.001 0.125
blaSHV and blaCTX-M-9-group 61 (46.6%) 22 (55.0%) 34 (48.6%) 5 (23.8%) 0.516 0.020 0.044
blaTEM and blaCTX-M-1-group 42 (32.1%) 9 (22.5%) 23 (32.9%) 10 (47.6%) 0.250 0.440 0.217
blaTEM and blaCTX-M-9-group 40 (30.5%) 15 (37.5%) 21 (30.0%) 4 (19.1%) 0.420 0.139 0.324
blaCTX-M-9-group and blaCTX-M-1-group 8 (6.1%) 2 (5.0%) 5 (7.1%) 1 (4.8%)
blaSHV, blaTEM and blaCTX-M-9-group 36 (27.5%) 13 (32.5%) 20 (28.6%) 3 (14.3%) 0.665 0.124 0.186
blaSHV, blaTEM and blaCTX-M-1-group 38 (29.0%) 7 (17.5%) 22 (31.4%) 9 (42.9%) 0.111 0.032 0.332
blaSHV, blaCTX-M-9-group and blaCTX-M-1-group 8 (6.1%) 2 (5.0%) 5 (7.1%) 1 (4.8%)
blaTEM, blaCTX-M-9-group and blaCTX-M-1-group 6 (4.6%) 2 (5.0%) 3 (4.3%) 1 (4.8%)
blaSHV, blaTEM, blaCTX-M-9-group and blaCTX-M-1-group 6 (4.6%) 2 (5.0%) 3 (4.3%) 1 (4.8%)
  1. Data are presented as number (%)
  2. Bold values suggest statistical significance
  3. not applicable