Relationship between systolic blood pressure difference of inter arms and brachial-ankle pulse wave velocity

Abstract

Objective To analyze the relationship between inter arm systolic blood pressure difference (IASBPD) and brachial-ankle pulse wave velocity (ba-PWV). Methods A total of 1 424 individuals from Ping Guoyuan Community Health Service Center of Shi Jingshan District in Beijing were involved during September to December, 2007. The blood pressure was assessed in both arms simultaneously by VP-1 000, and IASBPD was defined as the absolute difference value of left and right upper arm systolic blood pressure. IASBPD ≥10 mmHg was defined as increase of IASBPD. ba-PWV was measured by VP-1 000, and other cardiovascular disease risk factors were also recorded. The relationship between the increase of IASBPD and the increase of Ba-PWV (≥1 800 cm/s ) was analyzed by Logistics regression method. Results ba-PWV in IASBPD≥10 mmHg group was significantly faster than IASBPD<10 mmHg group [(1 723.0 ± 483.0) cm/s vs. (1 527.0 ± 386.0) cm/s, P<0.05]. Multivariate logistics regression showed the IASBPD≥10 mmHg was positively correlated to ba-PWV ≥1800 cm/s (OR=1.65, 95%CI: 1.03-2.06, P<0.05) independently. Conclusions IASBPD ≥10 mmHg was positively correlated with ba-PWV ≥1 800 cm/s independently. Key words: Arteriosclerosis; Inter arm blood pressure difference; Brachial-ankle pulse wave velocity