title: Blood Pressure over Height Ratios: Simple and Accurate Method of Detecting Elevated Blood Pressure in Children.
abstract: Background. Blood pressure (BP) percentiles in childhood are assessed according to age, gender, and height. Objective. To create a simple BP/height ratio for both systolic BP (SBP) and diastolic BP (DBP). To study the relationship between BP/height ratios and corresponding BP percentiles in children. Methods. We analyzed data on height and BP from 2006-2007 NHANES data. BP percentiles were calculated for 3775 children. Receiver-operating characteristic (ROC) curve analyses were performed to calculate sensitivity and specificity of BP/height ratios as diagnostic tests for elevated BP (>90%). Correlation analysis was performed between BP percentiles and BP/height ratios. Results. The average age was 12.54 ± 2.67 years. SBP/height and DBP/height ratios strongly correlated with SBP & DBP percentiles in both boys (P < 0.001, R(2) = 0.85, R(2) = 0.86) and girls (P < 0.001, R(2) = 0.85, R(2) = 0.90). The cutoffs of SBP/height and DBP/height ratios in boys were ≥0.75 and ≥0.46, respectively; in girls the ratios were ≥0.75 and ≥0.48, respectively with sensitivity and specificity in range of 83-100%. Conclusion. BP/height ratios are simple with high sensitivity and specificity to detect elevated BP in children. These ratios can be easily used in routine medical care of children.
authors.affiliation: Division of Pediatric Endocrinology Infants and Children's Hospital of Brooklyn at Maimonides & Children and Hospital at Downstate, State University of New York, Brooklyn, NY 11219, USA.
authors.forename: Ovidiu
authors.initials: O
authors.lastname: Galescu
authors.forename: Minu
authors.initials: M
authors.lastname: George
authors.forename: Sudhakar
authors.initials: S
authors.lastname: Basetty
authors.forename: Iuliana
authors.initials: I
authors.lastname: Predescu
authors.forename: Anil
authors.initials: A
authors.lastname: Mongia
authors.forename: Svetlana
authors.initials: S
authors.lastname: Ten
authors.forename: Amrit
authors.initials: A
authors.lastname: Bhangoo