الملخص

Abstract Measures of nine variables affect the births of the premature babies have been taken . And also the principal axis method was used then the factor analysis on the studied variables data to specify the importance of these variables to births of the premature babies . As well as , "Varimax" method was used to rotate the axis to get an easier and more specific results. Statistic analyses, have shown the importance off all variables except the fifth variable (sex) ,and that for not showing ,this variable,any significant effect upon any of the selected factors having less communality among the variables . For the other variables , they are the sequence of factors and the variables loading with factors and the ratio of what explain each factor from the total variance ,we find that the third variable " mother age "and the seventh variable"Number of Births" and the eightth variable" number of abortion cases "and the ninth variable "type of birth" in first place .And the first variable "premature weight" and the second variable "premature age" in second place. Finally , the forth variable " the time that the premature has spent in The nursemaid " and the sixth variable " type of disease" in third place.