Table 1.

Differences and correlations between systolic blood pressure (SBP) at each time point and the 24-hour mean SBP^a

Time point	tb	rc
7:00 AM	0.241	0.683
9:30 PM	1.064	0.668
2:00 PM	3.696	0.521
Office mean SBP	12.380	0.532

^aThree time points in order of decreasing differences from the 24-hour mean SBP and office mean SBP.

^bDifference between SBPs at each time point and 24-hour mean SBP by the paired t test (p > 0.05).

^cPearson correlation coefficient of SBPs at each time point and 24-hour mean SBP (p < 0.001).