Figure 2From: The comparative burden of mild, moderate and severe Fibromyalgia: results from a cross-sectional survey in the United States Impact of Fibromyalgia on Sleep: Mean Study Sample MOS-SS Scores Compared to US General Population. Source: Subject Questionnaire and Hays et al, 2005 (US Norms for age range 18-94) [26]. Note: Higher scores indicate more of the concept being measured. Higher scores represent worse outcomes on all scales except for sleep adequacy, where higher scores represent better outcomes.Back to article page