Table 4 Area under the curve (AUC) of the receiver operator characteristic (ROC) curves for micro-aggregated one-vs-rest (OvR) multi-class classification of the defined auxiliary target subgroups. Performance metric was evaluated on the validation sets of each respective fold. Values are given by mean ± standard deviation across all folds for training (train), validation (val) as well as for the top 10 ranking features according to the respective ranking scores (train 10, val 10)
contrast | muscle | train | train 10 | val | val 10 |
|---|---|---|---|---|---|
age | |||||
water | all | \(80.30\pm 0.33\%\) | \(78.53\pm 0.14\%\) | \(73.03\pm 0.70\%\) | \(72.24\pm 0.55\%\) |
gluteus | \(91.41\pm 0.34\%\) | \(88.37\pm 0.21\%\) | \(76.43\pm 0.50\%\) | \(74.90\pm 0.81\%\) | |
psoas | \(91.46\pm 0.09\%\) | \(89.29\pm 0.28\%\) | \(78.54\pm 0.67\%\) | \(77.60\pm 0.53\%\) | |
extensors | \(91.10\pm 0.28\%\) | \(89.02\pm 0.10\%\) | \(76.94\pm 0.73\%\) | \(76.34\pm 0.65\%\) | |
adductors | \(91.44\pm 0.36\%\) | \(88.58\pm 0.28\%\) | \(76.09\pm 0.94\%\) | \(74.93\pm 0.88\%\) | |
fat | all | \(80.45\pm 0.20\%\) | \(78.06\pm 0.17\%\) | \(73.63\pm 0.70\%\) | \(72.32\pm 0.74\%\) |
gluteus | \(91.50\pm 0.36\%\) | \(88.84\pm 0.27\%\) | \(76.70\pm 0.58\%\) | \(75.79\pm 0.62\%\) | |
psoas | \(91.45\pm 0.16\%\) | \(89.57\pm 0.16\%\) | \(79.79\pm 0.47\%\) | \(79.37\pm 0.45\%\) | |
extensors | \(91.04\pm 0.10\%\) | \(89.73\pm 0.16\%\) | \(78.49\pm 0.63\%\) | \(78.17\pm 0.82\%\) | |
adductors | \(91.17\pm 0.16\%\) | \(87.79\pm 0.22\%\) | \(76.47\pm 0.98\%\) | \(74.82\pm 0.78\%\) | |
BMI | |||||
water | all | \(86.80\pm 0.21\%\) | \(85.05\pm 0.11\%\) | \(80.68\pm 0.30\%\) | \(79.87\pm 0.09\%\) |
gluteus | \(94.54\pm 0.21\%\) | \(92.72\pm 0.14\%\) | \(84.63\pm 0.46\%\) | \(93.92\pm 0.31\%\) | |
psoas | \(92.47\pm 0.09\%\) | \(91.17\pm 0.21\%\) | \(79.14\pm 0.66\%\) | \(78.99\pm 0.73\%\) | |
extensors | \(94.78\pm 0.26\%\) | \(93.00\pm 0.06\%\) | \(82.26\pm 0.43\%\) | \(81.39\pm 0.41\%\) | |
adductors | \(95.91\pm 0.18\%\) | \(95.10\pm 0.22\%\) | \(88.31\pm 0.28\%\) | \(88.37\pm 0.18\%\) | |
fat | all | \(91.89\pm 0.46\%\) | \(90.02\pm 2.02\%\) | \(88.03\pm 0.89\%\) | \(86.42\pm 2.32\%\) |
gluteus | \(96.78\pm 0.05\%\) | \(95.97\pm 0.03\%\) | \(90.13\pm 0.37\%\) | \(90.48\pm 0.31\%\) | |
psoas | \(96.49\pm 0.05\%\) | \(95.83\pm 0.06\%\) | \(88.84\pm 0.28\%\) | \(89.93\pm 0.18\%\) | |
extensors | \(97.12\pm 0.08\%\) | \(96.37\pm 0.07\%\) | \(91.00\pm 0.50\%\) | \(91.34\pm 0.35\%\) | |
adductors | \(96.66\pm 0.38\%\) | \(94.97\pm 0.29\%\) | \(89.38\pm 1.05\%\) | \(88.37\pm 0.59\%\) | |
FF | |||||
water | all | \(98.91\pm 0.03\%\) | \(98.90\pm 0.00\%\) | \(98.36\pm 0.03\%\) | \(98.36\pm 0.04\%\) |
gluteus | \(99.07\pm 0.07\%\) | \(98.61\pm 0.48\%\) | \(97.12\pm 0.33\%\) | \(96.80\pm 0.95\%\) | |
psoas | \(98.18\pm 0.05\%\) | \(97.85\pm 0.03\%\) | \(95.83\pm 0.14\%\) | \(95.66\pm 0.13\%\) | |
extensors | \(99.99\pm 0.00\%\) | \(99.98\pm 0.00\%\) | \(99.96\pm 0.00\%\) | \(99.96\pm 0.00\%\) | |
adductors | \(99.65\pm 0.04\%\) | \(99.47\pm 0.02\%\) | \(98.86\pm 0.05\%\) | \(98.77\pm 0.08\%\) | |
fat | all | \(99.13\pm 0.02\%\) | \(98.73\pm 0.03\%\) | \(98.52\pm 0.09\%\) | \(98.11\pm 0.05\%\) |
gluteus | \(99.74\pm 0.02\%\) | \(99.35\pm 0.02\%\) | \(98.40\pm 0.05\%\) | \(97.95\pm 0.06\%\) | |
psoas | \(99.18\pm 0.02\%\) | \(99.06\pm 0.04\%\) | \(97.62\pm 0.07\%\) | \(97.70\pm 0.06\%\) | |
extensors | \(99.99\pm 0.00\%\) | \(99.98\pm 0.00\%\) | \(99.97\pm 0.00\%\) | \(99.96\pm 0.00\%\) | |
adductors | \(99.62\pm 0.04\%\) | \(99.38\pm 0.01\%\) | \(98.82\pm 0.08\%\) | \(98.56\pm 0.11\%\) | |