Table 2.

Blood Pressure Levels for Daytime ABPM and 30-Minute OBPM

Measurement	30-min OBPM (SD)	Daytime ABPM (SD)	Δ 30-min OBPM–ABPM (95% CI)	SDD
Mean arterial pressure, mm Hg	104 (12)	103 (11)	2 (0 to 3)a	7
Systolic blood pressure, mm Hg	141 (17)	141 (14)	0 (−2 to 2)	10
Diastolic blood pressure, mm Hg	84 (11)	82 (11)	2 (0 to 3)b	6

ABPM = ambulatory blood pressure monitoring; CI = confidence interval; OBPM = office blood pressure measurement; SDD = standard deviation of the difference of the mean.

Note: Because of rounding, figures may not add up correctly.

^aP=.03.

^bP=.008.