Clostridium difficile infection increases acute and chronic morbidity and mortality

Area of Science:

• Geriatric Medicine
• Infectious Diseases
• Health Services Research

Background:

• Clostridium difficile infection (CDI) poses a significant health burden, particularly in elderly populations.
• Understanding the short- and long-term consequences of CDI is essential for effective patient management and resource allocation.

Purpose of the Study:

• To quantify the short- and long-term outcomes of Clostridium difficile infection (CDI) in elderly individuals.
• To assess the impact of CDI on all-cause mortality, facility transfers, and hospitalizations.

Main Methods:

• Retrospective analysis of 2011 Medicare claims data for elderly individuals with and without CDI.
• Propensity score-matching and stratified analyses were employed to evaluate risks.
• Outcomes assessed included all-cause mortality, long-term care facility (LTCF) transfer, skilled nursing facility (SNF) transfer, and subsequent hospitalizations within 30 days, 90 days, and 1 year.

Main Results:

• CDI was associated with a significantly increased risk of death (OR, 1.77) and transfer to LTCF (OR, 1.74) and SNF (OR, 2.52) within 30 days.
• Mortality risk was highest in patients with the lowest baseline probability of CDI (HR, 3.04), decreasing as baseline risk increased.
• CDI also increased the risk of subsequent hospitalizations at 30 days, 90 days, and 1 year.

Conclusions:

• Clostridium difficile infection (CDI) is linked to elevated short- and long-term adverse outcomes in the elderly, including mortality and facility placement.
• The impact of CDI on mortality risk varies by baseline probability, highlighting the potential benefit of preventive measures even in lower-risk patients.