Factors related to self-rated quality of life among women with fibromyalgia according to International Classification of Functioning

BACKGROUND AND OBJECTIVES Fibromyalgia is characterized by diffuse pain, which may compromise the self-rated quality of life (SRQoL). Little is known about the influence of psychosocial and environmental factors on SRQoL in women with fibromyalgia. The objective was to investigate factors related to SRQol among women with fibromyalgia, according to International Classification of Functioning domain. METHODS A cross-sectional population-based study was performed with 1,557 women. Those who self-reported fibromyalgia answered the Fibromyalgia Impact Index. SRQoL was evaluated by questions ranging from 1 (unsatisfied) to 3 (very satisfied). Exposures included personal and environmental factors distributed in four blocks according to hypothesized influence on outcome. Multiple linear regression was performed, considering 95% of confidence interval, using IBM SPSS version 24. RESULTS Income sufficiency was related to higher SRQoL in model 1. Physical environment was related to SRQoL in model 2, 3 and 4. Functional capacity measurement was related to SRQoL in model 4. In the final model, only depressive symptoms (ß:-0.374; CI: -0.037/ -0.004) and number of painful body areas (ß: 0.204; CI: -0.102/-0.001) remained significantly related to SRQoL, explaining 27% of the variance. CONCLUSION SRQoL was related to depressive symptoms and number of painful body areas even after controlled by socioeconomic, environment and health status. However, other aspects may mediate or moderate that outcome, deserving attention in a biopsychosocial approach. The results highlighted the relevance of biopsychosocial aspects on quality of life of women with fibromyalgia, addressing factors that could be approached in clinical practice to promote health and well-being.