Table 3 Cross validation results from the models built with different
From: Utilizing heart rate variability to predict ICU patient outcome in traumatic brain injury
Set # | Features | Training | Testing | ||||
|---|---|---|---|---|---|---|---|
AUC [95% CI] | Sensitivity [95% CI] | Specificity [95% CI] | AUC [95% CI] | Sensitivity [95% CI] | Specificity [95% CI] | ||
1 | APACHE II | 0.73 [0.7, 0.76] | 0.23 [0.15, 0.31] | 1 [1, 1] | 0.74 [0.63, 0.84] | 0.16 [0.01, 0.31] | 1 [1, 1] |
2 | APACHE III | 0.6 [0.56, 0.64] | 0.07 [0.01, 0.13] | 1 [0.99, 1] | 0.59 [0.43, 0.75] | 0 [0, 0] | 0.98 [0.95, 1.01] |
3 | SAPS | 0.73 [0.7, 0.75] | 0.08 [0.02, 0.14] | 0.96 [0.95, 0.98] | 0.74 [0.65, 0.84] | 0.04 [0, 0.12] | 0.95 [0.91, 0.99] |
4 | APACHE II APACHE III | 0.77 [0.74, 0.79] | 0.2 [0.12, 0.28] | 0.96 [0.95, 0.98] | 0.65 [0.55, 0.75] | 0 [0, 0] | 0.96 [0.92, 1] |
5 | APACHE II APACHE III SAPS | 0.78 [0.76, 0.81] | 0.23 [0.15, 0.31] | 0.96 [0.95, 0.98] | 0.64 [0.53, 0.75] | 0 [0, 0] | 0.9 [0.84, 0.96] |
6 | LF_Hz HF_Hz LF_perc LFHF | 0.8 [0.77, 0.83] | 0.35 [0.26, 0.44] | 0.97 [0.97, 0.98] | 0.75 [0.66,0.84] | 0.22 [0.08,0.35] | 0.93 [0.89,0.97] |
7 | DistHR DistHF_Hz DistHF_perc DistLF/HF | 0.87 [0.85, 0.9] | 0.6 [0.54, 0.66] | 0.96 [0.95, 0.96] | 0.76 [0.64, 0.88] | 0.52 [0.34, 0.7] | 0.93 [0.9, 0.97] |
8 | HR DistHR DistHF_Hz DistVLF_perc DistHF_perc DistLF/HF | 0.9 [0.87, 0.92] | 0.68 [0.62, 0.73] | 0.96 [0.96, 0.97] | 0.77 [0.66, 0.89] | 0.65 [0.48, 0.82] | 0.92 [0.88, 0.96] |
9 | HR DistHR DistHF_Hz DistLF/HF | 0.86 [0.83, 0.88] | 0.62 [0.56, 0.69] | 0.95 [0.94, 0.96] | 0.76 [0.64, 0.88] | 0.5 [0.31, 0.68] | 0.93 [0.89, 0.97] |