At what age upper segment  : Lower segment ratio becomes 1 : 1?
Age
US : LS ratio




Birth
			3 years
			7-10 years
			> 10 years
1.7 : 1
			1.3 : 1
			1 : 1
			0.9 : 1
3-6 years
5-8 years
7-10 years
10-12 years