新生儿出生体重、身长、胸围、头围四大生理常数,是衡量胎儿生长发育的几项重要指标。国内外对此有过不少报告,广州市及市郊亦有过报告,但我省的代表性资料尚属空白。为了解我省新生儿体格发育情况,探索生长发育规律,积累我省新生儿资料,为围产期保健、新生儿疾病防治和优生优育工作提供科学基础 Neonatal birth weight, length, chest circumference, head circumference of the four major physiological constants, is to measure the growth and development of several important indicators of the fetus. There have been many reports both at home and abroad, and reports have been made in Guangzhou and the suburbs. However, the representative data in our province are still blank. To understand the physical development of newborns in our province to explore the law of growth and development, accumulation of newborns in our province information for the perinatal care, prevention and treatment of neonatal diseases and prenatal and postnatal care provide the scientific basis