1. What is a Child Blood Pressure Centile Calculator?

Definition: This calculator determines the blood pressure percentile for children based on age, gender, height, and blood pressure measurements.

Purpose: It helps healthcare providers assess whether a child's blood pressure is normal for their age, gender, and height.

2. How Does the Calculator Work?

The calculator uses pediatric blood pressure reference data:

Where:

• Centile — Blood pressure percentile (1-100%)
• Age — Child's age in years
• Gender — Male or Female
• Height — Child's height in centimeters
• SBP/DBP — Systolic and Diastolic blood pressure in mmHg

Explanation: The calculation compares the child's BP to normative data from large pediatric populations.

3. Importance of BP Centile Calculation

Details: Pediatric hypertension is defined as BP ≥95th percentile. Accurate centile calculation helps identify children at risk.

4. Using the Calculator

Tips: Enter the child's exact age (can include decimals for months), gender, height, and resting blood pressure measurements.

5. Frequently Asked Questions (FAQ)

Q1: What's considered normal BP for children?
A: Normal is <90th percentile. Elevated is 90-94th percentile. Hypertension is ≥95th percentile.

Q2: Why does height matter in BP percentiles?
A: Taller children typically have higher normal BP ranges than shorter children of the same age.

Q3: How often should children's BP be checked?
A: Annually for children >3 years, or more frequently if risk factors exist.

Q4: What if BP is >95th percentile?
A: Repeat measurements on 3 separate occasions before diagnosing hypertension.

Q5: Does this calculator work for infants?
A: No, this calculator is designed for children aged 1-17 years.