Table 1

Characteristics of participants with radiographic-confirmed knee osteoarthritis by race (N = 2583)
Characteristic African Americans Caucasian Americans
(n = 508) (n = 2075)
percentage
Age (years): ≥ 65 30.5 46.4
Women 70.9 55.0
Education
 ≤ High school 31.0 15.3
 ≥ Some college 69.0 84.7
Income ($)
 ≤ 50,000 66.5 36.9
 50,000–100,000 25.9 38.2
 >100,000 7.6 24.8
Married/partnered 37.2 72.7
Insurance covers prescriptions 84.6 87.5
Kellgren-Lawrence Grade
 2 33.5 31.5
 3 49.4 47.2
 4 17.1 21.3
Symptom-related multi-joint osteoarthritis 68.5 68.9
History of knee injury or surgery 46.9 56.3
Obesity 66.1 38.5
mean (standard deviation)
KOOS Pain 61.6 (23.0) 78.3 (18.1)
KOOS Symptoms 63.7 (21.6) 78.6 (17.6)
KOOS Quality of Life 51.2 (23.4) 65.5 (22.1)
KOOS Function in Daily Life 67.9 (22.3) 84.8 (16.2)
KOOS Function in Sports and Recreational Activities 52.8 (24.3) 69.9 (21.5)
SF-12 Mental Health Score 52.1 (10.1) 54.3 (7.6)
SF-12 Physical Health Score 42.3 (10.8) 48.9 (8.7)

Yang et al.

Yang et al. BMC Complementary and Alternative Medicine 2012 12:86   doi:10.1186/1472-6882-12-86

Open Data