Components of 24-hour BP variability measures.

Based on 24 studies included in the review. astandard deviation / mean BP b average of absolute value of successive pairs of BP measurements c weighted average of day standard deviation and night standard deviation dpercentage nocturnal fall e difference of mean day BP and mean night BP f adjusted day-night difference, (mean day BP-mean night BP)/mean 24-hour BP gmean BP in 2 hours after awakening—mean BP in 2 hours preawakening hdifference between BP on rising and BP in 30 minutes before rising idifference between mean BP in first hours after awakening and mean BP in last hour preawakening jdifference between mean BP in 3 hours after awakening and mean BP in 3 hours preawakening kdifference between mean BP in 2 hours after awakening and mean of the 3 BP readings centred on the lowest BP readings during sleep ldifference between mean BP in 2 hours after awakening and mean of all the BP readings during sleep mdifference between mean BP in 2 hours after awakening and lowest mean of 3 BP consecutive BP readings during the night n≥20/15mmHg rise in first two BP readings from 7am compared to average night BP Components of 24-hour BP variability measures.