Effects of Kampo medicine hangebyakujutsutemmato on persistent postural-perceptual dizziness: A retrospective pilot study

Table 4 Head-up tilt test factors related to Niigata persistent postural-perceptual dizziness questionnaire improvement at 2 mo

	Variable	Estimate	SE	t value	P value
	(Intercept)	-16.8	4.78	-3.51	0.004b
	Age	0.01	0.006	2.04	0.06
	Sex	-0.78	0.60	-1.31	0.21
INOH	Immediate change ratio (sBP)	2.41	1.42	1.69	0.11
	Immediate change ratio (dBP)	2.82	1.72	1.63	0.13
Delayed OH	Delayed change ratio (sBP)	1.36	0.94	1.44	0.17
	Delayed change ratio (dBP)	1.67	1.04	1.60	0.13
PoTS	Immediate change ratio (HR)	4.39	1.40	3.13	0.009b
Parasympathetic nervous system	Immediate change ratio (CVRR)	0.88	0.37	2.36	0.03a
	Delayed change ratio (HF)	2.27	0.68	3.34	0.006b
Sympathetic nervous system	Immediate change ratio (L/H)	0.09	0.07	1.21	0.24
	Delayed change ratio (L/H)	0.59	0.26	2.26	0.04a

^aP < 0.05.

^bP < 0.01.

Residual standard error = 0.29 (df = 11); multiple R-squared = 0.66; adjusted R-squared = 0.32; F-statistic = 1.95 (df, 11 and 11); P value = 0.14; Akaike information criterion = -49.7. HF: High-frequency component; L/H: Low-frequency component/high-frequency component; CVRR: Coefficient of variation of the R-R interval; INOH: Instantaneous orthostatic hypotension; OH: Orthostatic hypotension; PoTS: Postural tachycardia syndrome; NPQ: Niigata PPPD questionnaire; HBT: Hangebyakujutsutemmato; PPPD: Persistent postural-perceptual dizziness.