Objective Auscultation of TCM Based on Wavelet Packet Fractal Dimension and Support Vector Machine

Table 3

Significant difference between the box dimension values for the coefficients of the subbands from the first to fifth layers in male subjects.

Node	Frequency band (KHz)	Group H (mean ± std)	Group Y (mean ± std)	Group Q (mean ± std)
2.2	4–6	1.663±0.024^∧	1.694±0.032^∗	1.677±0.037
4.0	0–0.5	1.701±0.022^∧	1.651±0.052^∗#	1.691±0.055^∧
4.4	2–2.5	1.581±0.057	1.564±0.045^#	1.592±0.042^∧
4.10	5–5.5	1.573±0.031	1.614±0.052^#	1.580±0.045^∧
4.14	7–7.5	1.594±0.041	1.625±0.028^#	1.592±0.034^∧
5.1	0.25–0.5	1.755±0.026^∧	1.704±0.059^∗	1.729±0.056
5.5	1.25–1.5	1.596±0.037^∧	1.544±0.033^∗#	1.572±0.049^∧

Compared with Group H, ^∗𝑃<0.05. Compared with Group Y, ^∧𝑃<0.05. Compared with Group Q, ^#𝑃<0.05.