Table 3.
Descriptive and receiver operating characteristic curve analysis results of parameters which were significantly different among two groups
Parameters | Median (range) | P (Mann- Whitney U) | AUROC (95% CI) | Cut-offs | |
---|---|---|---|---|---|
| |||||
<1 year (n=18) | ≥1 year (n=24) | ||||
Metabolic parameters | |||||
MTVwb | 218.89 (16.35-886.30) | 132.87 (14.43-480.460) | 0.035 | 69.2 (53.0-85.4) | 158.56 |
First order-texture parameters | |||||
Mean | 9.92 (6.398-11.695) | 10.67 (7.500-11.66) | 0.047 | 68.1 (51.4-84.7) | 10.25 |
Median | 11.00 (6-14) | 13.00 (7-14) | 0.001 | 68.8 (52.3-85.2) | 11.50 |
RMS | 10.79 (7.86-12.32) | 11.51 (8.99-12.28) | 0.029 | 69.9 (53.9-86.0) | 11.27 |
Second order-texture parameters | |||||
Mean | 10.05 (6.43-11.80) | 10.79 (7.64-11.83) | 0.042 | 68.5 (52.0-85.1) | 10.45 |
Auto correlation | 118.57 (62.02-153.38) | 133.71 (82.35-153.28) | 0.031 | 69.7 (53.6-85.8) | 128.70 |
Cluster prominence | 17,628.72 (6053.99-31,387.81) | 21,770.87 (12,225.06-28,104.16) | 0.027 | 70.1 (53.7-86.6) | 20526.42 |
Cluster shade | −914.79 (−1458.09-−112.53) | −1025.14 (−1392.82-−522.42) | 0.047 | 68.1 (51.4-84.7) | −983 |
Sum average | 21.23 (14.62-24.60) | 23.03 (16.73-25.448) | 0.035 | 69.2 (52.8-85.6) | 22.51 |
Sum variance | 427.22 (213.53-548.35) | 491.55 (283.25-579.98) | 0.015 | 72.2 (56.6-87.9) | 454.39 |
AUROC: Area under the receiver operating characteristic, CI: Confidence interval, MTVwb: Metabolic tumor volume whole-body, RMS: Root mean square