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. 2022 Nov 17;23:988. doi: 10.1186/s12891-022-05926-1

Table 1.

Demographic Characteristics of the Study Sample

Mean/N SD / %
Age (years) 66.6 7.1
BMI (kg/m2) 28.1 5.3
Side Left 123 42.6
Right 166 57.4
Sex Female 223 77.2
Male 66 22.8
Kellgren-Lawrence Grade 0 52 18.0
1 77 26.6
2 65 22.5
3 84 29.1
4 11 3.8
Medial joint space narrowing (3 missing) 0 151 52.2
1 75 26.0
2 40 13.8
3 20 6.9
Lateral joint space narrowing (3 missing) 0 242 83.7
1 24 8.3
2 17 5.9
3 3 1.0
Radiographic osteoarthritis No 129 44.6
Yes 160 55.4

BMI Body mass index, N Number, SD Standard deviation