Association between Multiple Myeloma and Ulcerative Colitis: A Cross-Sectional Analysis

Area of Science:

• Hematology
• Gastroenterology
• Oncology

Background:

• Multiple myeloma (MM) is a plasma cell disorder often seen in autoimmune conditions.
• The link between ulcerative colitis (UC) and MM has not been well-established.
• This study investigates the prevalence of MM in UC patients.

Purpose of the Study:

• To determine the prevalence of multiple myeloma (MM) in patients diagnosed with ulcerative colitis (UC).
• To identify demographic subgroups within the UC population that exhibit a higher risk for MM.
• To assess the association between UC and MM in a US-based inpatient cohort.

Main Methods:

• A cross-sectional cohort analysis was conducted using the National Inpatient Sample (NIS) database from 2015 to 2018.
• The study compared MM prevalence in patients with and without UC, controlling for age and sex.
• Logistic regression analysis was employed to determine the odds of MM in UC patients.

Main Results:

• Patients with UC had a higher crude prevalence of MM (0.44%) compared to those without UC (0.37%).
• UC patients demonstrated increased odds of having MM (OR, 1.26).
• Higher MM prevalence was observed in UC patients who were male, African American, aged over 64, or obese.

Conclusions:

• Ulcerative colitis (UC) is associated with an increased prevalence of multiple myeloma (MM).
• This association is more pronounced in specific demographics: elderly (>64 years), obese, and African American males with UC.
• Heightened clinical vigilance for MM is recommended in UC patients, particularly those in identified high-risk demographic groups.