Figure 2
From: Birth weight percentiles by sex and gestational age for twins born in southern China
Comparison with the birth weight references in Australia, South Korea, and China (based on the birth defects surveillance system standards). (A) At each gestational age (week), the SGA rate is calculated by dividing the number of twins who are defined as SGA by the total number of twins born during this gestational age (week). (B) Appropriate for gestational age (AGA) twins were defined as those with birth weights falling within the 10th and 90th percentiles. The AGA rate is calculated by dividing the number of twins who are defined as AGA by the total number of twins born during the gestational age (week) (C) The LGA rate is calculated by dividing the number of twins who are defined as LGA by the total number of twins born during the gestational age (week).
