1. What is Corrected Gestational Age?

Corrected gestational age accounts for prematurity by adjusting the age based on weeks of prematurity. It provides a more accurate assessment of developmental expectations for preterm infants.

2. How Does the Calculator Work?

The calculator uses the corrected age formula:

Where:

• \( \text{Gestational Age} \) — Current postmenstrual age in weeks
• \( \text{Weeks at Birth} \) — Gestational age at birth in weeks

Explanation: The equation adjusts for the degree of prematurity by subtracting the weeks of prematurity (40 - weeks at birth) from the current gestational age.

3. Importance of Corrected Age

Details: Corrected age is essential for proper developmental assessment of preterm infants, as it accounts for their early birth when evaluating growth and milestones.

4. Using the Calculator

Tips: Enter gestational age in weeks (current age since conception) and weeks at birth (gestational age when born). Both values should be between 20-50 weeks.

5. Frequently Asked Questions (FAQ)

Q1: Until what age should corrected age be used?
A: Typically until 2-3 years for most developmental assessments, though some experts recommend until school age for very preterm infants.

Q2: How does corrected age differ from chronological age?
A: Chronological age counts from birth, while corrected age accounts for prematurity by adjusting for weeks born early.

Q3: When should I stop using corrected age?
A: Transition from corrected to chronological age should be gradual and based on individual development, typically by age 2-3.

Q4: Does corrected age affect vaccination schedules?
A: No, vaccinations should be given based on chronological age, not corrected age.

Q5: How important is corrected age for developmental milestones?
A: Very important - it prevents inappropriate concerns about delays that are normal for the infant's corrected age.