From: Osteoarthritis and functional disability: results of a cross sectional study among primary care patients in Germany
total
Hip
Knee
Men
Women
Number of participants
1021
191
236
156
438
Unilateral OA (%)
150 (14.7)
32 (16.7)
41 (17.3)
32 (20.5)
45 (10.2)
Bilateral OA (%)
871 (85.3)
159 (83.2)
195 (82.6)
124 (79.5)
393 (89.7)