Table 2.

Mean values of systolic and diastolic blood pressure variability metrics based on the first four measurements and first seven measurements.

	Systolic blood pressure
	First 4 measurements			First 7 measurements
	Mean ± SD	Correlation with mean	p-value	Mean ± SD	Correlation with mean	p-value
Mean	135.4 ± 12.2	--	--	135.2 ± 11.7	--	--
SD	12.2 ± 6.4	0.29	<0.001	13.5 ± 5.3	0.36	<0.001
SDIM	12.1 ± 6.0	−0.02	0.500	13.4 ± 4.9	−0.03	0.403
CV	9.0 ± 4.5	0.11	<0.001	9.9 ± 3.7	0.13	<0.001
Peak size	13.9 ± 8.4	0.30	<0.001	20.1 ± 9.7	0.31	<0.001
Trough size	13.2 ± 7.4	0.24	<0.001	18.0 ± 7.4	0.29	<0.001
SV	16.6 ± 9.2	0.27	<0.001	17.9 ± 7.8	0.33	<0.001
ARV	14.5 ± 8.4	0.26	<0.001	14.9 ± 6.7	0.33	<0.001

	Diastolic blood pressure
	First 4 measurements			First 7 measurements
	Mean ± SD	Correlation with mean	p-value	Mean ± SD	Correlation with mean	p-value
Mean	75.6 ± 7.6	--	--	74.8 ± 7.1	--	--
SD	7.0 ± 3.4	0.04	0.154	7.7 ± 2.7	0.03	0.339
SDIM	7.1 ± 3.4	−0.03	0.165	7.8 ± 2.8	−0.06	0.126
CV	9.3 ± 4.6	−0.18	<0.001	10.3 ± 3.8	−0.23	<0.001
Peak size	7.7 ± 4.3	0.03	0.216	10.9 ± 5.0	0.03	0.343
Trough size	7.7 ± 4.25	0.04	0.145	10.4 ± 4.5	0.07	0.052
SV	9.6 ± 5.0	0.03	0.199	10.3 ± 4.1	0.01	0.702
ARV	8.3 ± 4.6	0.03	0.173	8.6 ± 3.6	0.01	0.788

SD – standard deviation, SDIM – standard deviation independent of the mean, CV – coefficient of variation, SV – successive variation, ARV – average real variation.