The association between conventional clinic, home, and automated office blood pressures: a pilot study on Japanese patients with hypertension. - Pilot study on automated blood pressure measurement among Japanese patients with hypertension.

Correlation coefficients were </=0.16 for the comparison of unattended office blood pressure (UBP) versus home BP for the systolic measurement. The difference between UBP minus home BP was small on average but varied among individuals. In contrast, the measurement values of conventional attended office BP and UBP were highly correlated (r >/= 0.72), but the difference between attended BP minus UBP was 10.4/4.2 mmHg. UBP cannot be used as an alternative to home BP.