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Table 1 Sociodemographic and descriptive characteristics of participants with radiographic-confirmed knee OA by BMI level (N = 2,675)

From: CAM use among overweight and obese persons with radiographic knee osteoarthritis

  BMI ≥ 35 kg/m2 BMI between 30 and <35 kg/m2 BMI between 25 and <30 kg/m2 BMI < 25 kg/m2
(n = 364) (n = 804) (n = 1,042) (n = 465)
  Percentage
Age (years): ≥ 65 27.5 39.6 48.9 49.9
Women 69.0 57.8 50.3 69.0
Race/ethnicity: White 58.8 72.7 82.7 89.3
  African American 38.7 24.3 13.3 6.5
  Latino 1.1 0.8 1.8 1.7
  Other 1.4 2.2 2.1 2.6
Education:≥College graduate 40.8 50.4 59.9 66.2
  Some college 36.9 28.2 22.7 21.3
  ≤ High school 22.4 21.3 17.5 12.6
Income ($):>100,000 15.6 20.1 24.3 22.4
  50 k–100 k 29.9 35.8 36.2 40.0
  25 k–50 k 31.4 27.9 26.7 24.0
  ≤ 25,000 23.1 16.2 12.8 13.7
Married/partnered 53.4 62.9 68.8 73.9
Working (for pay) 65.1 61.1 57.0 52.3
Health insurance 91.6 96.1 98.3 98.5
Insurance covers prescriptions 83.3 87.5 87.9 86.7
CES-D > 16 (Depressed) 15.9 10.1 7.2 7.5
  Mean (standard deviation)
Weight at age 25 (kg) 71.7 (14.9) 70.8 (14.7) 67.7 (13.1) 60.7 (10.1)
SF-12* Mental summary 52.3 (9.5) 53.4 (8.6) 54.7 (7.5) 53.9 (7.9)
SF-12* Physical summary 42.4 (10.6) 46.8 (9.3) 48.6 (9.0) 50.9 (8.0)
  1. *SF-12 (range: 0 to 100 with higher scores indicating better health).