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Figure 2 Bland-Altman plots for the differences between systolic office blood pressure measurement (OBPM) and home blood pressure measurement (HBPM) as a function of the average of OBPM and HBPM in patients without (left) or with (right) antihypertensive treatment. Results were derived from the studies mentioned in Tables 3 and 4. The relationship was statistically significant for untreated subjects only (p = 0.007). Studies were weighted for the number of subjects.
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