Prevalence of fibromyalgia in low socioeconomic status population
Assumpcao A et al. – Study reports that fibromyalgia (FM) is prevalent in the low socioeconomic status population assisted by the public primary health care system. Individuals with FM and Widespread Pain (WP) have significant impact in their well being. Methods- Aim was to assess:
- Prevalence of fibromyalgia
- Major symptoms of this syndrome
in an adult, low socioeconomic status population assisted by the primary health care system in a city in Brazil
- Cross-sectionally sampled individuals (n=768, 35-60 yrs old), interviewed by phone and screened about pain
- They were then invited to be clinically assessed (304 accepted)
- Pain was estimated using a VAS; fibromyalgia assessed using FIQ, and dolorimetry
- Statistical analyses included Bayesian Statistics and the Kruskal-Wallis Anova test
Results- From the phone-interview screening, participants (n=768) were divided into 3 groups:
- No Pain (NP) (n=185)
- Regional Pain (RP) (n=388) and
- Widespread Pain (WP) (n=106)
- Among participating in the clinical assessments, (304 subjects), prevalence of fibromyalgia was 4.4%
- Symptoms of pain, feeling well, job ability, fatigue, morning tiredness, stiffness, anxiety and depression were different among the groups
- Multivariate analyses: individuals with FM and WP had higher impairment vs those with RP and NP
- FM and WP were similarly disabling
- Similarly, RP was no significantly different than NP
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