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Objective: To investigate the association of nighttime blood pressure (BP) evaluated using home (HBPM) versus ambulatory monitoring (ABPM) in adolescents and young adults with type 1 diabetes (T1D). Design and method: Individuals aged 12-30 years with T1D underwent 24-hour ABPM (20 min intervals, Microlife WatchBP O3) and HBPM (daytime: duplicate morning and evening measurements; 7 days; night-time: 3 measurements per night for 3 nights; Microlife WatchBP Home-N). Non-dippers were defined as individuals with nighttime systolic and/or diastolic BP fall 109/112 mmHg for systolic and >61/64 mmHg for diastolic BP in ABPM/HBPM respectively). Based on ABPM, 22 participants (25.3%) were classified as non-dippers versus 48 (60.4%) on HBPM (56% agreement; kappa=0.2, p=0.01). Conclusions: In young individuals with T1D, nocturnal HBPM is feasible and strongly correlates with nighttime ABPM. The two methods indicate good agreement in identifying individuals with increased nighttime BP and fair agreement in detecting non-dippers.
Theodosiadi et al. (Wed,) studied this question.