Table 2. Demographic data of twin pairsa

ParameterTwins
MonozygoticDizygotic
aValues are mean ± SD.
n3024
Gender (M/F), n8/2211/13
Age, yr32 ± 931 ± 7
Height, cm171 ± 8173 ± 11
Weight, kg65 ± 1067 ± 14