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Table 1 Characteristics of the entire study sample (n = 129, 79 female, 50 male)

From: Subgroups of older adults with osteoarthritis based upon differing comorbid symptom presentations and potential underlying pain mechanisms

Variable Mean (SD) Range
Age (years) 72.2 (9.8) 65 to 90
BMI (kg/m2) 30.5 (5.9) 21.5 to 49.9
Self-reported race Caucasian 112 (86.8%)  
African American 12 (9.3%)  
Asian 2 (1.6%)  
More than one 1 (.8%)  
Chose not to report 2 (1.6%)  
Study joint knee 88 (68.2%)  
hip 41 (31.7%)  
% Veterans 26/120 (20.2%)  
WOMAC pain 7.9 (3.4) 2 to 20
WOMAC stiffness 3.3 (1.7) 0 to 8
WOMAC disability 20.9 (10.3) 3 to 42
BFI total 4.5 (2.0) 0.25 to 8.75
Self-reported duration of pain (months) 132.1 (146.5) 0 to 708