Epidemiologic Trends in Clostridioides difficile Infections in a Regional Community Hospital Network.

Journal Article (Journal Article;Multicenter Study)

IMPORTANCE: Clostridioides difficile infection (CDI) remains a leading cause of health care facility-associated infection. A greater understanding of the regional epidemiologic profile of CDI could inform targeted prevention strategies. OBJECTIVES: To assess trends in incidence of health care facility-associated and community-acquired CDI among hospitalized patients over time and to conduct a subanalysis of trends in the NAP1 strain of CDI over time. DESIGN, SETTING, AND PARTICIPANTS: This long-term multicenter cohort study reviewed records of patients (N = 2 025 678) admitted to a network of 43 regional community hospitals primarily in the southeastern United States from January 1, 2013, through December 31, 2017. Generalized linear mixed-effects models were used to adjust for potential clustering within facilities and changing test method (nucleic acid amplification testing or toxin enzyme immunoassay) over time. MAIN OUTCOMES AND MEASURES: Clostridioides difficile infection incidence rates were counted as cases per 1000 admissions for community-acquired and total CDI cases or cases per 10 000 patient-days for health care facility-associated CDI. Long-term trends in the proportion of cases acquired in the community and in NAP1 strain incidence were also evaluated. RESULTS: A total of 2 025 678 admissions and 21 254 CDI cases were included (12 678 [59.6%] female; median [interquartile range] age, 69 [55-80] years). Median (interquartile range) total CDI incidence increased slightly from 7.9 (3.5-12.4) cases per 1000 admissions in 2013 to 9.3 (4.9-13.7) cases per 1000 admissions in 2017. After adjustment, the overall incidence of health care facility-associated CDI declined (incidence rate ratio [IRR], 0.995; 95% CI, 0.990-0.999; P = .03), whereas insufficient evidence was found for either an increase or a decrease in community-acquired CDI (IRR, 1.004; 95% CI, 0.999-1.009; P = .14). The proportion of cases classified as community acquired increased over time from a mean (SD) of 0.49 (0.28) in 2013 to 0.61 (0.26) in 2017 (odds ratio, 1.010 per month; 95% CI, 1.006-1.015; P < .001). Rates of the NAP1 strain of CDI varied widely between facilities, with no statistically significant change in NAP1 strain incidence over time in the community setting (IRR, 1.007; 95% CI, 0.994-1.021) or health care facility setting (IRR, 1.011; 95% CI, 0.990-1.032). CONCLUSIONS AND RELEVANCE: The findings suggest that, despite the modest improvement in health care facility-associated CDI rates, a better understanding of community-acquired CDI incidence is needed for future infection prevention efforts.

Full Text

Duke Authors

Cited Authors

  • Turner, NA; Grambow, SC; Woods, CW; Fowler, VG; Moehring, RW; Anderson, DJ; Lewis, SS

Published Date

  • October 2, 2019

Published In

Volume / Issue

  • 2 / 10

Start / End Page

  • e1914149 -

PubMed ID

  • 31664443

Pubmed Central ID

  • PMC6824221

Electronic International Standard Serial Number (EISSN)

  • 2574-3805

Digital Object Identifier (DOI)

  • 10.1001/jamanetworkopen.2019.14149


  • eng

Conference Location

  • United States