Research Article
Nonlinear Analysis of Auscultation Signals in TCM Using the Combination of Wavelet Packet Transform and Sample Entropy
Table 5
SampEn values for the subbands’ coefficients in fifth level with significant differences.
| Frequency band (kHz) | Qi deficiency | Yin deficiency | Healthy | P value | mean | SD | mean | SD | mean | SD |
| 0.00–0.25 | 1.487 | 0.304 | 1.459 | 0.275 | 1.269 | 0.386 | 0.020 | 0.50–0.75 | 1.446 | 0.242 | 1.457 | 0.250 | 1.601 | 0.238 | 0.008 | 0.75–1.00 | 1.410 | 0.273 | 1.475 | 0.326 | 1.612 | 0.321 | 0.004 | 1.00–1.25 | 1.380 | 0.295 | 1.436 | 0.327 | 1.584 | 0.323 | 0.005 | 1.25–1.50 | 1.423 | 0.301 | 1.429 | 0.344 | 1.603 | 0.374 | 0.025 | 1.50–1.75 | 1.459 | 0.323 | 1.433 | 0.378 | 1.635 | 0.322 | 0.041 | 2.50–2.75 | 1.470 | 0.302 | 1.459 | 0.366 | 1.647 | 0.328 | 0.020 | 2.75–3.00 | 1.448 | 0.306 | 1.501 | 0.358 | 1.638 | 0.286 | 0.015 | 3.25–3.50 | 1.489 | 0.287 | 1.508 | 0.323 | 1.652 | 0.315 | 0.025 | 3.50–3.75 | 1.587 | 0.335 | 1.608 | 0.342 | 1.784 | 0.336 | 0.008 | 3.75–4.00 | 1.611 | 0.383 | 1.613 | 0.367 | 1.823 | 0.354 | 0.007 | 4.00–4.25 | 1.622 | 0.379 | 1.607 | 0.371 | 1.832 | 0.387 | 0.005 | 4.25–4.50 | 1.617 | 0.349 | 1.605 | 0.369 | 1.847 | 0.333 | 0.002 | 4.50–4.75 | 1.624 | 0.321 | 1.594 | 0.381 | 1.791 | 0.346 | 0.016 | 4.75–5.00 | 1.588 | 0.337 | 1.588 | 0.377 | 1.759 | 0.359 | 0.028 | 5.00–5.25 | 1.567 | 0.346 | 1.614 | 0.353 | 1.761 | 0.332 | 0.008 | 5.25–5.50 | 1.631 | 0.300 | 1.642 | 0.355 | 1.897 | 0.216 | 0.000 | 5.50–5.75 | 1.703 | 0.277 | 1.700 | 0.315 | 1.903 | 0.254 | 0.002 | 5.75–6.00 | 1.760 | 0.255 | 1.784 | 0.266 | 1.924 | 0.205 | 0.005 | 6.00–6.25 | 1.767 | 0.268 | 1.767 | 0.278 | 1.902 | 0.245 | 0.020 | 6.25–6.50 | 1.712 | 0.272 | 1.702 | 0.336 | 1.884 | 0.257 | 0.006 | 6.50–6.75 | 1.706 | 0.287 | 1.690 | 0.349 | 1.891 | 0.242 | 0.005 | 6.75–7.00 | 1.783 | 0.252 | 1.776 | 0.305 | 1.945 | 0.223 | 0.007 | 7.00–7.25 | 1.863 | 0.230 | 1.848 | 0.251 | 1.991 | 0.193 | 0.018 | 7.25–7.50 | 1.923 | 0.223 | 1.896 | 0.249 | 2.040 | 0.161 | 0.010 | 7.50–7.75 | 2.026 | 0.164 | 1.997 | 0.149 | 2.034 | 0.251 | 0.037 |
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