Adult hypertension is an important public health challenge worldwide due to its high prevalence and its risk for cardiovascular disease (CVD). 1,2 Blood pressure (BP) levels in children and adolescents have been increasing alarmingly during the past decades. 3,4 Elevated BP in children and adolescents may result in target organ damage and increase the risks of adult hypertension and consequent subclinical CVD. [5][6][7][8] Consequently, the early detection of elevated BP in children and adolescents is crucial to promote cardiovascular health and reduce the future CVD risk.The US Fourth Report recommended the sex-, age-, and heightspecific 90th BP percentiles to define pediatric elevated BP, which was accepted worldwide. 9 However, the percentile-based definition included hundreds of abnormal BP cutoff values, which resulted in a complex and cumbersome decision process. Elevated BP in children and adolescents was frequently undiagnosed in the clinical practice. 10,11 As a solution for this problem, the American Academy of Pediatrics (AAP) recommended 120/80 mm Hg as thresholds to identify elevated BP in adolescents aged 13-17 years. 12 The new definition of elevated BP in adolescents was consistent with adult hypertension definition released recently by American College of Cardiology/American Heart Association. 12,13 To our best knowledge, data are presently limited to compare the performance of the new definition in identifying elevated BP and concomitant cardiometabolic risks with the revised sex-, age-, and height-specific pediatric BP standard presented in AAP guideline.
AbstractRecently, the American Academy of Pediatrics (AAP) recommended 120/80 mm Hg as thresholds for identifying elevated blood pressure (BP) in adolescents aged 13-17 years.The authors aimed to compare the performance of the new definition in identifying elevated BP with traditional percentile-based definition. Data were obtained from the National Health and Nutrition Examination Survey 1999-2014, which included 7485 adolescents aged 13-17 years. Elevated BP was defined using the recommended (≥120/80 mm Hg) and traditional definition (≥90th percentile for sex, age, and height or 120/80 mm Hg) presented in AAP guideline. The prevalence of elevated BP was 15.7% and 17.2% using the recommended and traditional definition, respectively (P < .001). The recommended definition had high sensitivity (90.9%), perfect specificity (100.0%), perfect positive predictive value (100.0%), and very high negative predictive value (98.1%) compared with the traditional definition. The Kappa correlation coefficient between two definitions was 0.94 (P < .001). Similar results can be observed in subgroups across sex, age, and sex-and age-specific height percentile except for both sexes with young age and low height percentile. Generally, our results supported the use of the recommended definition for identifying elevated BP in adolescents.
|FAN et Al. by the US National Center for Health Statistics of the Centers for Disease Control and Prevention since 1999 in 2-ye...