Estimating the prevalence of hypertension corrected for the effect of within-person variability in blood pressure

摘要: The objective of our study was to assess the applicability using estimates within-person variance (WPV) from reproducibility studies for a correction blood pressure values in another improve accuracy prevalence estimation hypertension. Data were collected two cross-sectional population-based on cardiovascular disease risk factors conducted 1987 1995 among 55,026 subjects aged 20-59 years. Correction calculated 924 who examined 1989 and 1990. All other with repeated measurements searched MEDLINE 1966 onward. Six satisfied inclusion criteria. hypertension, uncorrected corrected studies, compared hypertension factor study. 17.3% [95%CI:17.0-17.7]. after WPV 13.5% [95%CI:13.2-13.8]. appropriate (depending such as number taken per visit, time interval between visits) resulted prevalences ranging 13.9% 14.7%. bias that occurs when no is performed much larger (29% overestimation) than are derived (3.1-8.4% overestimation). When not available population sample same study, it advisable use data correct WPV.