From: The association of BMI and knee pain among persons with radiographic knee osteoarthritis: A cross-sectional study
n
Pain (N = 329)
No Pain (N = 247)
Normal BMIb
155
66
89
Pre-Obese
208
113
95
Obese I
119
75
44
Obese II
61
47
14
Obese III
33
28
5
RKOA Grade 2
331
176
RKOA Grade 3
150
100
50
RKOA Grade 4
74
21