期刊
JOURNAL OF HYPERTENSION
卷 20, 期 10, 页码 1995-2007出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00004872-200210000-00019
关键词
ambulatory blood pressure monitoring; standard deviation score; children; height; body mass index
Background Twenty-four-hour ambulatory blood pressure monitoring (ABPM) is an essential tool in the diagnosis and therapeutic monitoring of arterial hypertension in children. The statistical use of pediatric ABPM reference values has been compromised by the non-Gaussian distribution of 24-h blood pressure (BP) in children. Objective To develop distribution-adjusted pediatric ABPM reference tables. Methods From cross-sectional ABPM data obtained in 949 healthy children and adolescents aged 5-20 years, a set of reference tables was developed for 24-h, daytime and night-time mean values of systolic, diastolic, mean arterial BP and heart rate, utilizing the LMS method to account for the variably skewed distribution of ABPM data. Age- and gender-specific estimates of the distribution median (M), coefficient of variation (S) and degree of skewness (L) were obtained by a maximum-likelihood curve-fitting technique. The estimates of L, M and S can be used to normalize ABPM data to gender and age or height. Results Re-application of the established L, M and S values in the reference population confirmed appropriate normalization of ABPM values, Height standard deviation scores (SDS), body mass index (BMI) SDS and heart rate SIDS were independent positive predictors of 24-h systolic BP SDS. Diastolic 24-h mean BP SDS showed a weak correlation with BMI SDS only. Conclusions The use of LMS reference tables permits calculation of appropriate SIDS values for ABPM in children. Whereas systolic 24-h BP is independently correlated with age, relative height and obesity, diastolic values are almost independent of age and relative height and weakly associated with relative obesity. J Hypertens 20:1995-2007 (C) 2002 Lippincott Williams Wilkins.
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