Neonatal & Pediatric BP Centiles
This tool routes clinicians to the age-appropriate paediatric blood pressure reference: a neonatal calculator for preterm and term infants by postmenstrual age, an infant calculator for postnatal ages 1-12 months, and a percentile calculator for children and adolescents aged 1-17 years based on the AAP 2017 Clinical Practice Guideline. Each pathway reports the relevant percentile bands (5th/50th/95th for neonates; 50th/90th/95th for infants; 50th/90th/95th/99th for children, adjusted for height percentile) so blood pressure can be interpreted against a normative curve rather than a single adult cut-off.
Blood pressure norms differ fundamentally by age band — the app uses postmenstrual-age tables for neonates (Zubrow et al. 1995), postnatal-age tables for infants 1-12 months (Second Task Force 1987), and height-adjusted percentile tables for children/adolescents 1-17 years (AAP 2017) — so it routes you to the correct reference rather than applying one formula to everyone.
It matches the child's measured height to the closest of seven tabulated height-percentile columns (5th through 95th) in the AAP 2017 tables, because expected BP varies with a child's height, not just age and sex.
The tool classifies readings as Normal, Elevated, Stage 1 Hypertension, or Stage 2 Hypertension based on where the entered systolic/diastolic BP falls relative to the height-and-age-adjusted 90th/95th percentiles (or fixed adolescent thresholds), per AAP 2017 Table 3.
The infant pathway uses the Second Task Force on Blood Pressure Control in Children (Pediatrics, 1987), which the AAP 2017 guideline itself defers to for this age band since AAP 2017 does not publish its own infant data.
Yes — the Neonatal BP option on this hub opens the app's dedicated neonatal calculator, referenced to Zubrow et al. 1995 and covering postmenstrual ages 24-46 weeks.