Birth Type
1 = Vaginal
2 = Caesarean

Child's Sex
1 = Male
2 = Female

Hyaline Membrain Disease
0 = Absent
1 = Present

Temperament Classification
1 = Easy
2 = InterL
3 = Slow
4 = InterH
5 = Difficult
6 = Other

Repeated time of Measurement
1 = Time 1
2 = Time 2

1 = 4-8 Months
2 = 1-3 Years

1 = VeryLow
2 = Low
3 = Normal