Table 7.

Generalized estimation equation for the BDI.

			95% Wald Confidence Interval		Hypothesis Test
	B	Standard Error	Lower	Upper	Wald Chi Square	df	Sig.
Group
Control	0
Grounding	−2.167	2.5421	−7.150	2.815	0.727	1	0.394
Acupoint electrochemical signals
Kidney Meridians KI 1	0
Governing Vessel GV 16	0.034	0.1222	−0.206	0.273	0.077	1	0.781
Time
Baseline	0
12 weeks	−0.277	0.5209	−1.298	0.744	0.283	1	0.595