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Increased Rates of Infectious Diseases in Fibromyalgia Patients: A Population-Based Case-Control Study

Michal Vinker-Shuster, E. Magen, Ilan Green, E. Merzon, A. Golan-Cohen, A. Israel

Biomedicines, 2024

9,232 participants · 3 citations

Abstract

Introduction: Fibromyalgia (FM) patients are known to have medical comorbidities. This study characterized the rates of infectious diseases in FM patients compared to the general population. Methods: A nationwide population-based case-control study was conducted, including all patients diagnosed with FM by a rheumatologist compared to a matched 5:1 control group within a large health maintenance organization in Israel (January 2002 to December 2023). Demographic, anthropometric, and health habit data were extracted from medical records as well as the ICD-9 codes of diagnoses related to infectious diseases in 9232 FM patients and 46,160 controls. Infection rates in the FM patients were compared to the controls over a mean follow-up of 6.7 years. Results: The FM patients had a significantly higher incidence of viral, bacterial, fungal, and parasitic diseases compared to the controls. The FM patients had significantly higher odds ratios (ORs) for respiratory/sinopulmonary infections, including upper respiratory tract infections (OR = 1.49), influenza (OR = 1.80), tonsillitis (OR = 1.40), sinusitis (OR = 1.98), otitis media (OR = 1.84), otitis externa (OR = 1.48), and pneumonia (OR = 1.60), all p < 0.01. They also experienced more gastrointestinal infections, including gastroenteritis (OR = 1.40), Helicobacter pylori (OR = 2.05), candidal esophagitis (OR = 7.88), and giardiasis (OR = 3.41), all p < 0.01. They had a higher prevalence of genitourinary infections, including urinary…

How strong is the evidence?

Evidence Hub reads this as a case-control, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 9,232 participants or records.

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