Why the study?
Does using actual awake/asleep times rather than fixed day/night times improve the accuracy of blood pressure dipping status in patients who wake up to urinate?
Population
97 subjects undergoing 24-hour ambulatory blood pressure monitoring who reported waking up at night to urinate
Comparison
Assessment of 24-hour ABPM using actual daytime… vs Assessment of 24-hour ABPM using total daytime…
Design
Cross-sectional
Authors
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Supports adjusting ABPM for actual sleep times to reduce nondipper misclassification; leaves open whether this refines risk stratification.
Does using actual awake/asleep times rather than fixed day/night times improve the accuracy of blood pressure dipping status in patients who wake up to urinate?
Accounting for actual awake and asleep times during 24-hour ABPM significantly reduces the misclassification of patients as nondippers due to nocturnal urination.
Perk et al. (2001) studied this question.
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