Table 5.

Psychosocial characteristics by cluster group for Sample 1 (n = 690). Values are expressed as mean (SD).

VariableHH (n = 223)ML (n = 268)LL (n = 199)Total (n = 690)ph2
Pain score (0–10)7.58 (1.23)6.69 (1.19)6.42 (1.35)6.9 (1.34)< 0.0010.13
Sleep score (0–10)7.05 (1.61)6.36 (1.53)6.0 (1.54)6.48 (1.61)< 0.0010.07
FIQ physical impairment (0–3)1.35 (0.69)1.20 (0.7)1.09 (0.64)1.22 (0.69)0.0010.02
HADS Anxiety10.14 (4.57)8.72 (4.36)8.96 (4.23)9.25 (4.43)< 0.0010.02
HADS Depression8.42 (4.4)7.53 (4.37)6.83 (3.84)7.62 (4.28)< 0.0010.02
Manual tender point count17.79 (0.64)17.06 (1.47)15.72 (2.31)16.91 (1.78)< 0.0010.21
  • FIQ: Fibromyalgia Impact Questionnaire; HADS: Hospital Anxiety and Depression Scale; h2: portion of variance in each variable accounted for by the solution.