Employers, Women Feel Pain of Fibromyalgia

An estimated 5 million US adults, or about 2% of the adult population, have fibromyalgia (FM), according to 2005 data collected by the National Arthritis Data Workgroup (Figure 1). FM is a chronic condition of unknown etiology characterized by widespread muscle pain, sleep disturbance, fatigue, and often psychological distress and is considered a form of arthritis. The workgroup also reported that the only study on the prevalence of primary FM in the United States-which included 3006 adults 18 years and older-showed that prevalence was significantly higher among women than among men (3.4% vs 0.5%; approximately a 7:1 ratio). In women, prevalence of the condition rose sharply in middle age, to 7.4% among those aged 70 to 79 years, and then declined. Prevalence of FM in men similarly peaked between 70 and 79 years but was only slightly more than 1% among men in this age-group. The CDC notes that the condition can also develop in children.