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Table 3 Munich Age Classification System (MACS)

From: Systemic review of age brackets in pediatric emergency medicine literature and the development of a universal age classification for pediatric emergency patients - the Munich Age Classification System (MACS)

Term

Age

Weight 50th percentile in kg

[22]

Neonate

Up to the 27th day of life

3,3 – ≤ 4,5

Infant

30 days – 12 months

4,5 – ≤ 9,9

Toddler

13 months – 2 years

9,9 – ≤ 15

Early childhood

3 years – 5 years

15 – ≤ 21

Late childhood

6 years – 11 years

21 – ≤ 41

Adolescent

12 years – 17 years

41 – ≤ 64

Adult

Older than 17 years

> 64