TABLE 2.
Variable# | IDHmut/MGMTmet, N = 40 | Other molecular status (IDHwt/MGMTmet, n = 32; IDHmut/MGMTunmet, n = 1; IDHwt/MGMTunmet, n = 45), N = 78 | P-value |
ADC histogram parameters | |||
10th percentile | 1022.81 ± 152.53 | 803.55 ± 134.00 | <0.001* |
90th percentile | 1451.00 (1309.00, 1679.75) | 1273.50 (1135.00, 1439.28) | <0.001* |
Entropy | 4.89 (4.55, 5.14) | 4.82 (4.57, 5.15) | 0.695 |
Interquartile range | 237.84 ± 79.60 | 232.37 ± 84.94 | 0.736 |
Kurtosis | 3.89 (3.24, 4.65) | 4.63 (3.66, 6.95) | 0.003* |
Maximum | 2251.84 ± 508.33 | 2231.36 ± 532.18 | 0.841 |
Mean absolute deviation | 147.18 ± 46.96 | 146.89 ± 51.14 | 0.976 |
Mean | 1248.80 ± 165.37 | 1023.07 ± 171.02 | <0.001* |
Median | 1238.63 ± 177.84 | 1002.16 ± 170.87 | <0.001* |
Minimum | 556.75 ± 228.17 | 432.44 ± 186.38 | 0.002* |
Range | 1695.09 ± 664.53 | 1798.92 ± 604.99 | 0.395 |
Robust mean absolute deviation | 99.81 ± 32.83 | 97.81 ± 35.11 | 0.766 |
Root mean squared | 1264.64 ± 164.74 | 1042.41 ± 175.67 | <0.001* |
Skewness | 0.30 ± 0.66 | 0.89 ± 0.68 | <0.001* |
Uniformity | 0.040 (0.035, 0.051) | 0.043 (0.036, 0.051) | 0.481 |
Variance | 36408.81 (20943.50, 53342.96) | 34819.11 (22237.20, 57707.43) | 0.887 |
Direct ADC measurements | |||
Minimum ADC | 971.63 ± 226.79 | 719.32 ± 162.30 | <0.001* |
Mean ADC | 1146.96 ± 218.15 | 870.15 ± 157.31 | <0.001* |
#Continuous variables with normal distribution were described as mean and standard deviations, and continuous variables with skewed distribution were described as median and quartiles. *P < 0.05.