So far, there is no proof whatsoever about relationships between those terms.
There were someone somewhere who did a little test by changing equipments and killing monsters afterwards, and the following is his conclusion:
Mostly, Chinese character terms are 2 times stronger than English character terms.
For example:
1 攻擊力 = 2 STR
1 命中 = 2 DEX
1 迴避 = 2 AGI
Once again, there is no proof on this, but it's just an estimation.