Characterisation and Carriage Ratio of Clostridium difficile Strains Isolated from a Community-Dwelling Elderly Population in the United Kingdom
2011

Study of Clostridium difficile in Healthy Elderly People

Sample size: 149 publication Evidence: moderate

Author Information

Author(s): Miyajima Fabio, Roberts Paul, Swale Andrew, Price Valerie, Jones Maureen, Horan Michael, Beeching Nicholas, Brazier Jonathan, Parry Christopher, Pendleton Neil, Pirmohamed Munir

Primary Institution: National Institute for Health Research (NIHR) Biomedical Research Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom

Hypothesis

What is the prevalence of Clostridium difficile in healthy elderly individuals living in the community?

Conclusion

The study found a low carriage rate of Clostridium difficile among healthy elderly individuals living outside of long-term care facilities.

Supporting Evidence

  • Only 4% of the 149 samples tested positive for C.difficile.
  • No individuals with positive cultures had a history of CDI or antibiotic use in the previous 3 months.
  • The study is the first to assess C.difficile in healthy elderly individuals outside of long-term care facilities.

Takeaway

Researchers looked at poop samples from older people to see if they had a germ called Clostridium difficile, and they found it in only a few of them.

Methodology

Faecal samples from 149 healthy elderly volunteers were screened for C.difficile using culture methods and immunoassays.

Potential Biases

Higher enrollment rates of females may introduce bias due to selective dropout of males.

Limitations

The study lacked follow-up to distinguish transient carriage from longer-term colonization.

Participant Demographics

Participants were mostly female (79.9%) with a median age of 81 years.

Statistical Information

Confidence Interval

95% CI 0.89–4.70

Digital Object Identifier (DOI)

10.1371/journal.pone.0022804

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