Patterns of comorbidity in elderly patients with multiple sclerosis

Area of Science:

• Gerontology
• Neurology
• Epidemiology

Background:

• Multiple sclerosis (MS) is a chronic neurological disease.
• Comorbidities significantly impact patient outcomes and healthcare utilization.
• Understanding comorbidity patterns in older MS patients is crucial for care management.

Purpose of the Study:

• To investigate the prevalence of comorbid conditions in hospitalized patients aged 65 and older with multiple sclerosis (MS).
• To compare the discharge diagnoses of hospitalized MS patients with an age- and sex-matched cohort without MS.

Main Methods:

• Retrospective analysis of the 1989 Quality of Care Medicare Provider Analysis and Review (MEDPAR) file.
• Comparison of discharge diagnoses between hospitalized MS patients and a matched control group without MS.
• Statistical analysis to identify significant differences in comorbidity prevalence (P < 0.05).

Main Results:

• Hospitalized older MS patients showed significantly higher rates of urinary tract infections, pneumonia, septicemia, and cellulitis.
• Conversely, MS patients had significantly lower rates of acute myocardial infarction, heart failure, hypertension, angina pectoris, cerebrovascular disease, diabetes mellitus, and COPD.
• These findings suggest unique comorbidity profiles in elderly MS patients.

Conclusions:

• Older hospitalized individuals with MS exhibit a distinct pattern of comorbidities, with increased susceptibility to infections.
• Potential protective effects of MS or its treatments, altered risk factor prevalence, or reporting biases may explain the observed lower rates of cardiovascular and metabolic diseases.
• Further research is warranted to elucidate the underlying mechanisms and implications for clinical practice and patient care.