Relationship between body mass index and fibromyalgia features

Scand J Rheumatol. 2002;31(1):27-31. doi: 10.1080/030097402317255336.


Objective: to evaluate the relationship between body mass index (BMI) and features of the fibromyalgia syndrome (FMS).

Methods: 211 female patients with FMS seen consecutively in our rheumatology clinic were analyzed. Spearman correlation was used. Further, FMS features were compared at different levels of BMI (kg/m2), e.g., < 25.00 vs > or = 25.00 (normal vs overweight). P value of < or = 0.01 was accepted as significant.

Results: A significant positive correlation was found between BMI and age (p<0.001) and a negative correlation between BMI and education (p<0.009). Health Assessment Questionnaire (HAQ) score was significantly correlated with BMI (p<0.001), whereas fatigue and number of tender points (TP) showed a trend (p=0.035 and 0.037, respectively).

Conclusion: The HAQ score is significantly associated with BMI in FMS with a trend towards significance for fatigue and TP. Weight loss may improve physical functioning in this disorder.

MeSH terms

  • Adult
  • Body Mass Index*
  • Disability Evaluation
  • Female
  • Fibromyalgia / complications
  • Fibromyalgia / physiopathology*
  • Health Status
  • Humans
  • Middle Aged
  • Obesity / complications
  • Pain / physiopathology
  • Severity of Illness Index
  • Surveys and Questionnaires