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Paediatr Child Health. 2013 Feb;18(2):65-9.

Blood pressure to height ratio: A novel method for detecting hypertension in paediatric age groups.

Author information

1
Department of Cardiology, the First Hospital of China Medical University; Shenyang, People's Republic of China.
2
Department of Clinical Epidemiology, Library, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China.

Abstract

in English, French

BACKGROUND:

A novel method for detecting hypertension in paediatric age groups has recently been formulated using ratios of systolic blood pressure to height (SBPHR) and diastolic blood pressure to height (DBPHR).

AIM:

To validate this approach and assess its applicability to children.

METHODS:

A cross-sectional study of 6837 children and adolescents five to 18 years of age was conducted. Blood pressure (BP) readings obtained were stratified using population-based percentiles from the United States.

RESULTS:

For SBPHR and DBPHR, areas under the ROC curve were >0.9 for BP at or above the 95th percentile. Performance of the cut-off points for detecting elevated BP in adolescents 13 to 18 years of age compared favourably with previous studies, showing high sensitivity and specificity (>95%). SBPHR and DBPHR also proved satisfactory when applied to children five to 12 years of age. Nevertheless, performance was lower for BP between the 90th and 95th percentiles.

CONCLUSIONS:

BP to height ratios are a practical means for detecting elevated BP in adolescents and children.

KEYWORDS:

Adolescents; Blood pressure to height ratio; Children; Hypertension; Prehypertension

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