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Table 3 Prevalence of colonization on admission and during hospitalization stratified by the specific MDR bacteria, the surveillance culture site and the time of specimen collection

From: A prospective surveillance study for multidrug-resistant bacteria colonization in hospitalized patients at a Thai University Hospital

Time Any site, (%) Nasal cavity, (%) Throat, (%) Inguinal area, (%) Rectum, (%)
ESBL-producing Enterobacteriaceae
 Time-1 (N = 487) 52.2 2.7 9.8 17.5 50.4
 Time-2 (N = 357) 51.8 3.4 15.1 17.5 46.2
 Time-3 (N = 162) 62.3 8.3 25.0 21.9 46.2
 Time-4 (N = 53) 71.7 12.0 28.6 27.1 53.8
ESBL-producing E. coli  
 Time-1 (N = 487) 42.3 1.0 2.9 11.9 38.8
 Time-2 (N = 357) 41.2 1.3 3.7 10.9 34.3
 Time-3 (N = 162) 39.5 0.6 3.3 10.3 33.1
 Time-4 (N = 53) 41.5 2.0 4.1 16.7 32.7
ESBL-producing Klebsiella spp.
 Time-1 (N = 487) 16.6 1.9 6.4 5.9 12.3
 Time-2 (N = 357) 19.1 2.2 10.7 5.9 10.4
 Time-3 (N = 162) 34.6 7.1 19.7 9.7 19.4
 Time-4 (N = 53) 45.3 1.0 22.5 19.4 19.2
CR-AB
 Time-1 (N = 487) 6.8 2.1 2.3 3.7 2.5
 Time-2 (N = 357) 16.3 4.7 6.7 10.4 8.6
 Time-3 (N = 162) 27.8 8.3 13.2 15.5 10.0
 Time-4 (N = 53) 47.2 26.0 24.5 22.9 19.2
CR-PA
 Time-1 (N = 487) 4.7 1.6 3.7 0.4 1.2
 Time-2 (N = 357) 8.4 2.2 5.4 1.8 2.1
 Time-3 (N = 162) 12.3 5.8 7.2 3.2 3.8
 Time-4 (N = 53) 18.9 10.0 12.2 2.1 1.9
MRSA
 Time-1 (N = 487) 7.2 4.3 3.5 1.2 2.5
 Time-2 (N = 357) 7.3 3.1 2.2 1.1 2.2
 Time-3 (N = 162) 11.7 4.9 2.6 3.7 1.2
 Time-4 (N = 53) 18.9 7.5 5.7 3.7 1.8
  1. Abbreviations: ESBL Extended-Spectrum Beta-Lactamase, CR-AB Carbapenem-Resistant Acinetobacter baumannii, CR-PA Carbapenem-Resistant Pseudomonas aeruginosa, MSSA Methicillin-Susceptible Staphylococcus aureus, MRSA Methicillin-Resistant Staphylococcus aureus