Table 1.
Age (years) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
variable | 18 weeks | birth | 1 | 2 | 3 | 5 | 8 | 10 | 14 | 17 | 20 | 22 |
parental | + | + | + | + | + | + | + | + | + | + | ||
genetic | + | + | ||||||||||
physical | + | + | + | + | + | + | + | + | + | + | + | + |
mental | + | + | + | + | + | + | + | + | + | + | + | |
behavioural | + | + | + | + | + | + | + | + | + | + | ||
environmental | + | + | + | + | + | + | + | + | + | + | + | + |