A comparison of ration and regression methods for assessing the proportionality of newborn babies.
Index and regression methods of selecting babies whose heads are out of proportion to their body weight are examined and compared. The ratios head circumference3/birthweight and head circumference3/birthweightP (where P is a power found by regression methods) are used, and the regression of head circumference 3 on birthweight is calculated. The problems associated with all three methods are discussed, and the power index is found to be the most satisfactory method.
D001724:Birth Weight; D002508:Cephalometry; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012044:Regression Analysis; D013223:Statistics as Topic