1
Birthweight below 1 kg
2
Birthweight between 1-2 kg
3
Birthweight between 2-2.5 Kg
4
Development age of foetus
5
Baby born before 37 completed weeks gestation
6
Weight of baby at birth
7
Event or problem that occurs during period of gestation
8
Late teens to early 20\'s
9
Teenager
10
Baby is born alive
11
First 28 days of life
12
First 12-24 hours of life
13
1-12 months of age
14
Period between puberty and adulthood
15
1-12 years of age
