Value of Assessing Autonomic Nervous Function by Heart Rate Variability and Heart Rate Turbulence in Hypertensive Patients

Table 4

Multivariate logistic regression results for risk of uncontrolled blood pressure.

	B	S.E	Wald	P value	Exp	95% CI lower limit	95% CI upper limit
rMSSD (ms)	0.073	0.032	5.363	0.021	1.075	1.011	1.144
pNN50 (%)	0.131	0.058	5.130	0.024	1.140	1.017	1.277
VLF (ms)	0.128	0.038	11.358	0.001	1.136	1.055	1.225
LF (ms)	0.166	0.058	8.245	0.004	1.181	1.054	1.321
HF (ms)	0.213	0.076	7.957	0.005	1.238	1.067	1.435
TS (ms/ RR)	0.071	0.034	4.453	0.035	1.073	1.005	1.147

rMSSD, square root of mean of the sum of squares of successive NN interval differences; pNN50, number of successive NN intervals differing by >50ms divided by the total number of successive NN intervals; VLF, very low frequency; LF, low frequency; HF, high frequency; TS, turbulence slope.