Factors associated with Clostridium difficile infection: A nested case-control study in a three year prospective...

Area of Science:

• Infectious Diseases
• Epidemiology
• Clinical Medicine

Background:

• Clostridium difficile infection (CDI) presents a significant challenge due to high morbidity and mortality.
• Effective prevention strategies rely on identifying and recognizing patients at risk for CDI.

Purpose of the Study:

• To identify risk factors associated with Clostridium difficile infection (CDI).
• To recognize patients at high risk for CDI for improved prevention.

Main Methods:

• A 3-year prospective, observational cohort study with a nested case-control design was conducted.
• Inclusion criteria involved inpatients aged 18 years or older with diarrhea suspected to be CDI.
• A total of 945 patients were included, with 233 confirmed CDI cases.

Main Results:

• CDI was more prevalent in men.
• Significant risk factors included previous hospitalization, antibiotic use (especially third-generation cephalosporins and penicillin with beta-lactamase inhibitors), antiperistaltic use, liver disease, malnutrition, and prior CDI.
• Multivariate analysis confirmed independent risk associated with recent antibiotic exposure, chronic renal/liver disease, malnutrition, and previous CDI. Age was not a significant factor.

Conclusions:

• Antibiotics and comorbid conditions are key predictors of CDI.
• High-risk patients may benefit from vigilant antibiotic stewardship and infection control measures.
• Future interventions may include novel agents for CDI prevention in at-risk populations.