Sifdanese Journal of PAEDIAVERIGS- ¥GL~8'-2007 '

A normal Sudanese intrauterine growth parameters was obtained by studying six hundred and fifty single newborns of 28 to 4-4-weeks gestational age. The newborns were born to healthy mothers from different social classes in hospitals. The mothers of different ages were very sure of their date of the last menstrual period for calculation gestational age. The means of birth weight were obtained each gestational age and were compared to analogous age of American, English, Nigerian, Chinese, Hong-Kong series. The crown-heel length and head circumference means were compared to Nigerian series. There are is no significant differences between the means of birth weight when compared to Chinese and Hong-Kong series, but the American, English and Nigerian newborns were significantly heavier at later weeks of pregnancy. Also Nigerian newborns were significantly longer and have larger head circumference towards end of pregnancy when compared to our newborns. This retardation of growth noted in our newborns at later weeks of pregnancy is possibly due to environmental causes, but this has to be confirmed by further study