From: Characterization of osteoarthritic human knees indicates potential sex differences
Variable | Female | Male | p valuea |
---|---|---|---|
Median age (IQR) - years | 70 (68, 71) | 69 (66, 72) | 0.42 |
Median body mass index (IQR) - kg/m2 | 26.2 (25.6, 28.1) | 27.0 (24.3, 28.6) | 0.34 |
Vitamin D use - no. (%)b | 0.14 | ||
Currently | 6 (60 %) | 3 (30 %) | |
Previously | 3 (30 %) | 2 (20 %) | |
Never | 1 (10 %) | 5 (50 %) | |
Median 25-hydroxy D3 (IQR) - ng/ml | 42.1 (33.7, 47.2) | 38.4 (31.0, 52.6) | 0.79 |
Bisphosphonates use - no. (%)b | 0.47 | ||
Previously | 2 (20 %) | 0 (0 %) | |
Never | 8 (80 %) | 10 (100 %) | |
Estrogen use - no. (%)b | <0.001 | ||
Currently | 4 (40 %) | 0 (0 %) | |
Previously | 4 (40 %) | 0 (0 %) | |
Never | 2 (20 %) | 10 (100 %) | |
Previously injured a knee so badly it was difficult to walk for at least a week - no. (%) | 0 (0 %) | 3 (30 %) | 0.21 |
Prior knee surgery - no. (%) | 6 (60 %) | 6 (60 %) | 1.00 |
Prior intra-articular injections of steroids - no. (%) | 7 (70 %) | 5 (50 %) | 0.65 |
Median no. of steroid injections (IQR) | 1 (0, 1)c | 1 (0, 3) | 0.58 |
Prior intra-articular injection of hyaluronic acid - no. (%) | 3 (30 %) | 5 (50 %) | 0.65 |
Median no. of hyaluronic injections (IQR) | 0 (0, 1) | 2 (0, 3) | 0.30 |
Knee to be replaced - no. (%) | 1.00 | ||
Right | 6 (60 %) | 6 (60 %) | |
Left | 4 (40 %) | 4 (40 %) |