Age determination in girls of north – eastern region of India.

Epiphyseal union of the elbow, knee, wrist joints and pelvis was studied retrospectively on 104 girls between the age group of 16 -22 yrs to determine the age roentgenographically. Regression formula with the standard errors was derived for the respective joints. The Y-values predicted by the Regression equation may not be valid if they are out side the range of the Y-values used to determine the equation. The present study establishes a reference population for age determination of girls from epiphyseal union in North – Eastern region of India.