Intrauterine growth of twins. A retrospective analysis

In a retrospective study of 150 twins born between 1970-1977, birth weight, length, and head circumference was plotted against gestational age. In comparison to singletons, all 3 parameters were low normal. While length and head circumference values follow the growth pattern of singletons, prenatal birth weight shows a progressive decline toward maturity. The intrauterine growth pattern of twins resembles that of intrauterine growth retardation of singletons.