Table 3 The correlation between the blood pressure variability (evaluated with SD, CV, and ARV) and carotid intima-media thickness/number of plaques in all the subjects
Variables | IMT | Number of plaques | ||||
|---|---|---|---|---|---|---|
r(P)1 | r(P)2 | r(P)3 | r(P)1 | r(P)2 | r(P)3 | |
SD | ||||||
 Daytime SBPV | 0.312** (0.005) | 0.103 (0.368) | 0.231* (0.041) | 0.146 (0.286) | 0.073 (0.596) | 0.065 (0.584) |
 Daytime DBPV | 0.098 (0.391) | 0.037 (0.745) | 0.076 (0.51) | 0.002 (0.989) | −0.105 (0.443) | −0.104 (0.378) |
 Nighttime SBPV | 0.053 (0.646) | 0.008 (0.945) | 0.033 (0.771) | 0.156 (0.255) | 0.078 (0.572) | 0.014 (0.907) |
 Nighttime DBPV | 0.046 (0.686) | 0.136 (0.235) | 0.105 (0.359) | 0.215 (0.115) | 0.149 (0.279) | 0.142 (0.227) |
 24 h SBPV | 0.261* (0.021) | 0.119 (0.298) | 0.213 (0.061) | 0.151 (0.272) | 0.100 (0.467) | 0.065 (0.584) |
 24 h DBPV | 0.098 (0.392) | 0.068 (0.555) | 0.093 (0.416) | −0.005 (0.970) | −0.058 (0.671) | −0.104 (0.378) |
CV | ||||||
 Daytime SBPV | 0.255* (0.024) | 0.117 (0.306) | 0.208 (0.067) | 0.167 (0.223) | 0.122 (0.373) | 0.105 (0.374) |
 Daytime DBPV | 0.172 (0.132) | 0.132 (0.248) | 0.172 (0.133) | 0.174 (0.203) | 0.077 (0.575) | 0.097 (0.410) |
 Nighttime SBPV | 0.08 (0.485) | 0.146 (0.201) | 0.13 (0.258) | 0.097 (0.481) | 0.080 (0.560) | 0.059 (0.616) |
 Nighttime DBPV | 0.007 (0.95) | 0.143 (0.212) | 0.088 (0.444) | 0.172 (0.209) | 0.195 (0.153) | 0.130 (0.268) |
 24 h SBPV | 0.215 (0.059) | 0.146 (0.202) | 0.203 (0.075) | 0.175 (0.202) | 0.142 (0.301) | 0.122 (0.301) |
 24 h DBPV | 0.145 (0.206) | 0.153 (0.18) | 0.169 (0.139) | 0.200 (0.142) | 0.145 (0.292) | 0.118 (0.316) |
ARV | ||||||
 Daytime SBPV | 0.284* (0.012) | 0.188 (0.099) | 0.266* (0.019) | 0.356** (0.008) | 0.241 (0.077) | 0.278* (0.016) |
 Daytime DBPV | 0.239* (0.035) | 0.076 (0.511) | 0.175 (0.126) | 0.150 (0.275) | 0.100 (0.467) | 0.076 (0.523) |
 Nighttime SBPV | −0.014 (0.904) | −0.008 (0.941) | −0.013 (0.913) | 0.155 (0.259) | 0.054 (0.698) | 0.025 (0.834) |
 Nighttime DBPV | 0.053 (0.646) | 0.16 (0.162) | 0.123 (0.285) | 0.278* (0.040) | 0.137 (0.317) | 0.186 (0.113) |
 24 h SBPV | 0.262* (0.021) | 0.122 (0.286) | 0.215 (0.059) | 0.297* (0.027) | 0.151 (0.270) | 0.188 (0.108) |
 24 h DBPV | 0.202 (0.077) | 0.097 (0.398) | 0.167 (0.143) | 0.241 (0.077) | 0.129 (0.348) | 0.138 (0.240) |