Efficacy and safety of thermobalancing therapy with Dr Allen’s Device for chronic low back pain: A randomised controlled trial

Table 2 Comparison of Numerical Pain Rating Scale scores before and after Thermobalancing therapy with Dr Allen’s Device

	NPRS parameters	Initial (mean ± SD)	1 mo (mean ± SD)		3 mo (mean ± SD)	P value (0-3 mo)
Treatment group	How would you rate your pain RIGHT NOW	6.48 ± 1.63	4.63 ± 1.00		3.18 ± 1.87	< 0.001
	P value	< 0.001a		< 0.001b
	USUAL level of pain during the last week	6.35 ± 1.23	4.18 ± 0.96		3.0 ± 1.43	< 0.001
	P value	< 0.001a		< 0.001b
	BEST level of pain during the last week	5.78 ± 1.25	3.78 ± 0.97		2.18 ± 1.62	< 0.001
	P value	< 0.001a		< 0.001b
	WORST level of pain during the last week	7.9 ± 1.50	4.93 ± 1.10		3.6 ± 2.01	< 0.001
	P value	< 0.001a		< 0.001b
Control group	How would you rate your pain RIGHT NOW	8.07 ± 1.16	8.4 ± 0.63		8.47 ± 0.64	> 0.05
	P value	> 0.05a		> 0.05b
	USUAL level of pain during the last week	7.53 ± 0.92	8.13 ± 0.52		8.67 ± 0.49	> 0.05
	P value	> 0.05a		> 0.05b
	BEST level of pain during the last week	7.33 ± 0.98	7.87 ± 0.64		8.13 ± 0.74	> 0.05
	P value	> 0.05a		> 0.05b
	WORST level of pain during the last week	8.73 ± 1.10	8.67 ± 0.49		9.00 ± 0.38	> 0.05
	P value	> 0.05a		> 0.05b

^aP value comparing NPRS score at 0 and 1 mo.

^bP value comparing NPRS score at 1 and 3 mo.

NPRS: Numerical Pain Rating Scale; SD: Standard deviation.