title: The sensitivity of waist-to-height ratio in identifying children with high blood pressure.
abstract: We determined the sensitivity of waist-to-height ratio (WHtR) as a marker for high blood pressure in children aged nine to 15 years (n = 1 131), from schools in the North West province, South Africa. Anthropometric and blood pressure measurements were taken. The sensitivity and specificity of the WHtR to identify children with high blood pressure were evaluated. At a cut-off value of 0.5, 7.9% of the girls and 3.4% of the boys had central adiposity. Thirteen per cent of the children were hypertensive. The optimal WHtR cut-off value to identify children with hypertension was 0.41 in both boys and girls. Positive correlations were observed between anthropometric indices. Using linear regression analyses, age and body mass index were significant predictors of high blood pressure in boys, while for girls it was height and weight. Results suggest that adopting a WHtR cut-off value < 0.5 could enhance the use of WHtR as a marker for high blood pressure in children.
authors: Centre of Excellence for Nutrition, North-West University, Potchefstroom, South Africa.
authors: B S
authors: BS
authors: Motswagole
authors: H S
authors: HS
authors: Kruger
authors: M
authors: M
authors: Faber
authors: J M
authors: JM
authors: van Rooyen
authors: J H
authors: JH
authors: de Ridder
mesh_terms: D050154:Adiposity; D000293:Adolescent; D000367:Age Factors; D000886:Anthropometry; D001794:Blood Pressure; D001827:Body Height; D015992:Body Mass Index; D002648:Child; D005260:Female; D006801:Humans; D006973:Hypertension / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D016014:Linear Models; D008297:Male; D009765:Obesity / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D016017:Odds Ratio; D011237:Predictive Value of Tests; D018570:Risk Assessment; D012307:Risk Factors; D012680:Sensitivity and Specificity; D012737:Sex Factors; D013019:South Africa; D055105:Waist Circumference