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Abstract
Background: A new method using blood pressure-to-height ratio for diagnosing elevated blood pressure/hypertension in children has been introduced recently. We aimed to compare blood pressure-to-height ratio (BPHR) and Body Mass Index (BMI) in predicting incidence of hypertension (HTN). Methods: The sample consisted of 1133 boys and 1154 girls aged 7–15. We used the following equations for BPHR: systolic BPHR (SBPHR) = SBP (mm Hg)/height (cm) and diastolic BPHR (DBPHR) = DBP (mm Hg)/height (cm). In order to determine the accuracy of SBPHR, DBPHR and BMI as diagnostic tests for elevated blood pressure (elevated BP), we used the receiveroperating characteristic curve analyses. Results: The area under the curve (AUC) values for BMI ranged from 0.625 to 0.723 with quite low sensitivity rates from 62% to 72.5% and specificities from 58.2% to 67.3% showing a modest ability to identify children with elevated BP and HTN. On the contrary, BPHR showed a great predictive ability to identify elevated BP and HTN with AUC values of 0.836 to 0.949 for SBP and from 0.777 to 0.904 for DBP. Furthermore, the sensitivity ranged from 78.5% to 95.7%, and the specificity from 73.9% to 87.6%. Conclusion: the current study showed that BPHR is an accurate index for detecting elevated BP and HTN in children aged 7 to 15 years and can be used for early screening.
Highlights
Hypertension/high blood pressure (HTN/HBP) can be defined as systolic BP (SBP) and/or diastolicBP (DBP) above the 95th percentile, and blood pressure (BP) between the 90th and 95th percentile can be considered as “elevated blood pressure” [1]
Conclusion: the current study showed that blood pressure-to-height ratio (BPHR) is an accurate index for detecting elevated BP and HTN in children aged 7 to 15 years and can be used for early screening
This study aimed to identify the predictive power and to propose cutoff points of Body Mass Index (BMI)-for-age (Z score) and blood pressure-to-height ratio (BPHR) for prediction of high blood pressure in school children of Vojvodina (North Serbia)
Summary
Hypertension/high blood pressure (HTN/HBP) can be defined as systolic BP (SBP) and/or diastolicBP (DBP) above the 95th percentile, and blood pressure (BP) between the 90th and 95th percentile can be considered as “elevated blood pressure” [1]. Hypertension/high blood pressure (HTN/HBP) can be defined as systolic BP (SBP) and/or diastolic. A recent study in Poland [7] indicated that the prevalence of HTN ranged from 5.6% to 7.9% in 10–18-year-old adolescents. As Body Mass Index (BMI) is increasing, the prevalence of HTN is increased progressively. A new method using blood pressure-to-height ratio for diagnosing elevated blood pressure/hypertension in children has been introduced recently. We aimed to compare blood pressure-to-height ratio (BPHR) and Body Mass Index (BMI) in predicting incidence of hypertension (HTN). Results: The area under the curve (AUC) values for BMI ranged from 0.625 to 0.723 with quite low sensitivity rates from 62% to 72.5% and specificities from 58.2% to 67.3% showing a modest ability to identify children with elevated BP and HTN
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