How many blood pressure measurements are needed to estimate long-term visit-to-visit systolic blood pressure variability for predicting cardiovascular risk?
A minimum of six blood pressure measurements is recommended to reliably calculate visit-to-visit blood pressure variability for long-term cardiovascular risk prediction.
Long-term visit-to-visit BPV is reproducible in clinical practice. We suggest a minimum of six BP measurements for calculation of intraindividual visit-to-visit BPV. The number and duration of BP readings to derive BPV should be taken into consideration in predicting long-term CV risk.
Lim et al. (Mon,) studied this question.
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