Risk factors of community-onset extended-spectrum β-lactamase-producing Klebsiella pneumoniae bacteraemia in South Korea using national health insurance claims data

Yongseop Lee, Young Ah Kim, Dokyun Kim, Jong Hee Shin, Young Uh, Kyeong Seob Shin, Jeong Hwan Shin, Seok Hoon Jeong, Yoon Soo Park

Research output: Contribution to journalArticle

Abstract

Background: Although it is essential to know the particular causes of antibiotic-resistant infections in the community, there is lack of evidence regarding risk factors for community-onset extended-spectrum β-lactamase-producing Klebsiella pneumoniae (ESBL-KP) bacteraemia in South Korea. As such, this study aimed to identify risk factors for community-onset ESBL-KP bacteraemia. Methods: From May 2016 to April 2017, patients with community-onset KP bloodstream infection (BSI) (n = 408) from six sentinel hospitals participating in the Global Antimicrobial Surveillance System in South Korea were included in this study. Risk factors of ESBL-KP BSI were assessed. Polymerase chain reaction and sequencing to identify genes encoding ESBLs and multi-locus sequence typing were performed. Results: Of the 408 patients with community-onset KP BSI, 70 (17%) had ESBL-KP BSI. Admission to a long-term-care hospital within the previous 3 months [odds ratio (OR) 5.7, 95% confidence interval (CI) 2.1–15.6; P = 0.001], previous use of trimethoprim/sulfamethoxazole (TMP/SMT; OR 11.5, 95% CI 2.7–48.6; P = 0.001) or extended-spectrum cephalosporin (OR 2.2, 95% CI 1.2–3.9; P = 0.01), and previous use of a urinary catheter (OR 2.3, 95% CI 1.1–4.5; P = 0.02) were independent risk factors for community-onset ESBL-KP BSI. ESBL-KP isolates most frequently carried the CTX-M-1 group ESBL (74%, n = 52). The most prevalent sequence type (ST) among the ESBL-KP isolates was ST48 (14%, n = 10). Among non-ESBL-KP isolates, ST23 was most prevalent (21%, n = 70). Conclusion: Previous admission to a long-term-care hospital, use of a urinary catheter and use of TMP/SMT or extended-spectrum cephalosporin within the previous 3 months were identified as risk factors for community-onset ESBL-KP BSI. Strict antibiotic stewardship and infection control measures are needed for long-term-care hospitals.

Original languageEnglish
Pages (from-to)723-727
Number of pages5
JournalInternational Journal of Antimicrobial Agents
Volume54
Issue number6
DOIs
Publication statusPublished - 2019 Dec

All Science Journal Classification (ASJC) codes

  • Microbiology (medical)
  • Infectious Diseases
  • Pharmacology (medical)

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