Article

Understanding corrected age: putting comparisons in fair perspective

What corrected age means and how it helps you in everyday life.

Preemie2026-05-151 min read

Preemies often have two "ages" – the actual one and the corrected one. Both are allowed to be there.

What it means

  • Corrected age = date of birth + the weeks that were missing until the due date.
  • Many developmental steps are measured against the corrected age instead.
  • Up to roughly the 2nd birthday, the corrected view is often used.

What it means in everyday life

  • Comparisons with full-term babies are rarely fair.
  • Milestones often come – simply at your child's own pace.
  • Note both dates when you talk to your paediatrician.

When worries stay

  • Name your worries clearly at routine check-ups or at the social-paediatric clinic.
  • Early intervention is gentle support – not a "label".

Your child has their own timing. That's allowed to be so.