Table 5. Multivariate Analysis of Tilt Training Non-Response.

	Hazard ratio (95% CI)	p value
Model 1
BRS<8.945 in the supine position during the first session of tilt training	23.10 (1.20-443.59)	0.037
MBP after upright posture	1.07 (0.96-1.18)	0.227
Frequency of syncope before initial diagnostic HUT	1.12 (0.87-1.43)	0.377
Total number of tilt training sessions	1.04 (0.50-2.17)	0.907
Model 2
BRS<8.945 in the supine position during the first session of tilt training	29.62 (1.64-534.14)	0.022
MBP before syncope	1.07 (0.94-1.22)	0.312
Frequency of syncope before initial diagnostic HUT	1.08 (0.85-1.38)	0.544
Total number of tilt training sessions	0.95 (0.42-2.15)	0.895
Model 3
BRS<8.945 in the supine position during the first session of tilt training	46.55 (1.66-1308.64)	0.024
Female gender	0.59 (0.03-12.86)	0.739
Frequency of syncope before initial diagnostic HUT	1.11 (0.88-1.40)	0.388
Total number of tilt training sessions	1.13 (0.54-2.39)	0.742

BRS, baroreflex sensitivity; MBP, mean blood pressure; HUT, head-up tilt test.