1. What is Gestation Adjusted Age?

Gestation Adjusted Age (also called Corrected Age) is the age a premature baby would be if they had been born at full term (40 weeks gestation). It accounts for the prematurity when assessing growth and development.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• Chronological Age — Actual time since birth
• Gestational Age at Birth — Weeks and days of pregnancy completed at birth
• 40 weeks — Standard duration of full-term pregnancy

3. Importance of Gestation Adjusted Age

Details: Adjusted age is used for tracking developmental milestones and growth in premature infants until about 2-3 years of age. It provides a more accurate comparison to full-term babies.

4. Using the Calculator

Tips: Enter the baby's current chronological age and their gestational age at birth. The calculator will determine how much to adjust for prematurity and provide the corrected age.

5. Frequently Asked Questions (FAQ)

Q1: Until what age should we use adjusted age?
A: Typically until 2-3 years old, though this varies by individual. Most children catch up developmentally by this age.

Q2: Should we use adjusted age for vaccinations?
A: No, vaccinations should be given based on chronological age, not adjusted age.

Q3: How does this affect growth charts?
A: Growth should be plotted on preterm growth charts using adjusted age until at least 2 years corrected age.

Q4: What if my baby was born post-term?
A: The calculator only adjusts for prematurity. Post-term infants (born after 42 weeks) don't need age adjustment.

Q5: When do premature babies typically "catch up"?
A: Most catch up in growth by age 2 and development by age 3, though extremely premature babies may take longer.