|
Parameter
|
Compartment
a
|
Incidence group (n = 92)
|
Control group (n = 53)
|
Pvalue unadjusted
|
Pvalue adjusted
b
|
Coefficient
c
|
95% confidence interval
|
|---|
|
T2
|
Mean, ms
|
All
|
32.65 ± 1.55
|
32.07 ± 1.38
|
0.056
|
0.018
|
-0.72
|
-1.31
|
-0.12
|
| | |
MF
|
37.68 ± 2.28
|
36.85 ± 2.16
|
0.042
|
0.003
|
-1.18
|
-1.94
|
-0.42
|
| | |
MT
|
30.27 ± 1.88
|
29.51 ± 1.77
|
0.029
|
0.036
|
-0.72
|
-1.39
|
-0.04
|
|
GLCM
|
Contrast
|
All
|
248.67 ± 38.39
|
227.41 ± 35.00
|
0.005
|
0.003
|
-22.81
|
-37.48
|
-8.13
|
| | |
MF
|
364.17 ± 68.98
|
333.37 ± 66.58
|
0.013
|
0.009
|
-32.97
|
-57.72
|
-8.21
|
| | |
MT
|
257.30 ± 63.19
|
226.96 ± 47.83
|
0.004
|
0.013
|
-25.40
|
-45.49
|
-5.48
|
| |
Entropy
|
All
|
6.34 ± 0.16
|
6.30 ± 0.19
|
0.142
|
0.286
|
-0.03
|
-0.10
|
0.03
|
| | |
MF
|
6.96 ± 0.17
|
6.90 ± 0.17
|
0.055
|
0.062
|
-0.06
|
-0.12
|
0.003
|
| | |
MT
|
6.17 ± 0.28
|
6.09 ± 0.34
|
0.050
|
0.127
|
-0.07
|
-0.15
|
0.02
|
| |
Variance
|
All
|
187.77 ± 26.69
|
171.74 ± 24.57
|
0.003
|
0.002
|
-16.60
|
-27.09
|
-6.27
|
| | |
MF
|
255.64 ± 42.38
|
233.10 ± 38.60
|
0.003
|
0.001
|
-24.86
|
-39.82
|
-9.91
|
| | |
MT
|
183.65 ± 37.88
|
162.66 ± 32.01
|
0.001
|
0.005
|
-17.89
|
-30.31
|
-5.47
|
- aAll, average of all compartments: medial femur (MF), medial tibia (MT), lateral femur, lateral tibia, and patella. bP value adjusted for age, gender, and body mass index (BMI). cThe coefficient is the difference in the T2 parameter between the incidence and control groups, adjusted for age, gender, and BMI. A coefficient below 0 indicates that the control group has a lower estimated T2 parameter in comparison with the incidence group. GLCM, grey level co-occurrence matrix.
