The Relationship between the 24 h Blood Pressure Variability and Carotid Intima-Media Thickness: A Compared Study
Table 2
The blood pressure variabilities evaluated with SD, CV, and ARV in all of the subjects ().
Variables
SD (mmHg)
CV (%)
ARV (mmHg)
Mean ± SD
r (P)1
Mean ± SD
r (P)2
Mean ± SD
r (P)3
Daytime SBPV
11.5 ± 3.7
0.879 (<0.001)
9.6 ± 2.7
0.717 (<0.001)
9.5 ± 3.1
0.819 (<0.001)
Daytime DBPV
9.0 ± 2.3
0.458 (<0.001)
13.6 ± 4.6
0.439 (<0.001)
8.0 ± 2.2
0.660 (<0.001)
Nighttime SBPV
9.8 ± 3.7
0.765 (<0.001)
9.2 ± 3.5
0.643 (<0.001)
10.0 ± 4.1
0.805 (<0.001)
Nighttime DBPV
8.4 ± 2.8
0.526 (<0.001)
13.9 ± 5.4
0.383 (0.002)
9.3 ± 3.1
0.734 (<0.001)
24 h SBPV
11.7 ± 3.5
0.889 (<0.001)
9.9 ± 2.8
0.773 (0.001)
9.5 ± 2.9
0.880 (<0.001)
24 h DBPV
9.2 ± 2.0
0.449 (<0.001)
14.0 ± 4.5
0.390 (0.002)
8.3 ± 2.0
0.675 (<0.001)
SD: standard deviation; CV: coefficient of variation; ARV: average real variability; SBPV: systolic blood pressure variability; DBPV: diastolic blood pressure variability. 1The correlation between the BPV evaluated with SD and CV; 2the correlation between the BPV evaluated with CV and ARV; 3the correlation between the BPV evaluated with SD and ARV.
