Evening home systolic blood pressure measured at bedtime was significantly lower than when measured before dinner, with a mean difference of -8.7 mm Hg (P<.001).
Observational (n=48)
Does the timing of evening home blood pressure measurement (bedtime vs before dinner) affect the recorded blood pressure values in elderly hypertensive patients?
Evening home blood pressure readings are significantly lower at bedtime compared to before dinner, largely influenced by daily activities like bathing and alcohol consumption, highlighting the need to standardize measurement timing.
Mean Difference: -8.7
p-value: p=<.001
The authors evaluated the differences between evening home blood pressure (HBP) readings taken before dinner and those taken at bedtime, which were documented in a European and a Japanese guideline, respectively. Forty-eight patients (mean age, 76.4 years) measured their evening HBP twice each day (two measurements both before dinner and at bedtime) for 14 days. The authors defined the at-bedtime (B) minus the before-dinner (D) systolic HBP as the B-D difference. The mean B-D difference was -8.7 mm Hg (P<.001). The depressor effect of bathing was significantly prolonged for 120 minutes. The B-D difference with alcohol consumption was significantly greater than that without alcohol. In the linear mixed model analysis, time after bathing ≤120 minutes and alcohol consumption were significantly associated with the B-D difference after adjustment with covariates. There was a marked difference between evening HBP values. When patients' evening HBP is measured according to the guidelines, their daily activities should be considered.
Fujiwara et al. (Tue,) conducted a observational in Hypertension (n=48). Home blood pressure measurement at bedtime vs. Home blood pressure measurement before dinner was evaluated on Difference between at-bedtime and before-dinner systolic home blood pressure (B-D difference) (Mean difference -8.7 mm Hg, p=<.001). Evening home systolic blood pressure measured at bedtime was significantly lower than when measured before dinner, with a mean difference of -8.7 mm Hg (P<.001).