Table 1 Clinical data for the three subject groups divided according to the degree of osteoarthritis (OA)
From: Quantitative evaluation of subchondral bone microarchitecture in knee osteoarthritis using 3T MRI
|  | Total (n = 80) | Control (n = 31) | Mild OA(n = 33) | Severe OA(n = 16) | P value |
|---|---|---|---|---|---|
Age | 42.18 ± 13.68 | 30.23 ± 9.34 | 45.64 ± 9.09†| 58.19 ± 6.34†| 0.000* |
Gender | |||||
 Male | 35(43.75%) | 11(35.48%) | 17(51.51%) | 7(43.75%) | 0.434 |
 Female | 45(56.25%) | 20(64.52%) | 16(48.49%) | 9(56.25%) |  |
Knee joint | |||||
 Left | 30(37.50%) | 8(25.81%) | 16(48.49%) | 6(37.5%) | 0.173 |
 Right | 50(62.50%) | 23(74.19%) | 17(51.51%) | 10(62.5%) |  |
 weight | 66.01 ± 9.56 | 63.94 ± 6.39 | 68.03 ± 11.73 | 65.88 ± 9.38 | 0.233 |
 BMI | 24.17 ± 2.69 | 23.51 ± 1.22 | 24.51 ± 3.32 | 24.71 ± 3.19 | 0.222 |
WOMAC OA index | |||||
 Pain | 4.84 ± 5.39 | 0.00 ± 0.00 | 5.30 ± 2.76 | 13.25 ± 3.55 | 0.000* |
 stiffness | 0.96 ± 1.97 | 0.00 ± 0.00 | 1.00 ± 1.71 | 2.75 ± 3.00 | 0.000* |
 Function | 9.16 ± 12.57 | 0.00 ± 0.00 | 9.61 ± 9.29 | 26.00 ± 13.14 | 0.000* |