Effectiveness of Hydrogalvanic Bath on Improving Pain, Disability, and Quality of Life in Individuals with Chronic Nonspecific Neck Pain: A Randomized Controlled Trial

Table 3

Comparison of outcome measures mean differences both experimental and control groups.

Outcome measures	Experimental		Control		value
	Mean	SD	Mean	SD
Pre- versus post- differences in SF36	9.765	4.724	0.30	1.8109	<0.001
Pre- versus post- differences in NDI	9.118	3.5157	1.47	1.7321	<0.001
Pre- versus post- differences in VAS	4.294	1.2127	1.647	0.8618	<0.001

SD: standard deviation, SF-36: Short Form -36, NDI: Neck Disability Index, and VAS: visual analog scale.