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Risk factors for Clostridium difficile colonisation and toxin production
John M Starr1, Heather Martin, Jodie McCoubrey
1Geriatric Medicine Unit, Edinburgh University, Royal Victoria Hospital, Craigleith Road, Edinburgh EH4 2DN, UK. John.Starr@ed.ac.uk
Age and Ageing
|November 6, 2003
Summary
This study found that older age, hospital admission, and cephalosporin antibiotics increase the risk of Clostridium difficile (C. diff) culture positivity. However, only antibiotic use is linked to becoming toxin-positive, suggesting distinct risk factors for C. diff infection stages.
Area of Science:
- Infectious Diseases
- Gastroenterology
- Epidemiology
Background:
- Clostridium difficile infection (CDI) is a significant healthcare-associated infection.
- Identifying risk factors for CDI is crucial for effective prevention and control strategies.
Purpose of the Study:
- To investigate the risk factors associated with patients becoming positive for Clostridium difficile culture and toxins.
- To differentiate risk factors for CDI colonization versus toxin production.
Main Methods:
- A prospective cohort study was conducted in two medicine for the elderly wards.
- Data were collected over 17 months on 865 admitted patients, analyzing stool specimens for C. difficile and toxins.
- Risk factors assessed included age, sex, admission source, antibiotic, laxative, antacid, and steroid use, and comorbidities.
Main Results:
- Age (per year), admission from another hospital, non-cephalosporin, and cephalosporin antibiotics significantly increased the risk of C. difficile culture positivity.
- Becoming toxin-positive was solely associated with antibiotic use, particularly amoxicillin and certain cephalosporins.
Conclusions:
- Distinct risk factors influence the progression to Clostridium difficile culture positivity versus toxin positivity.
- Age, hospital admission source, and third-generation cephalosporins are key for culture positivity.
- Antibiotic use is the primary driver for toxin positivity, highlighting the need for targeted infection control measures.