Demographic and perinatal data
bronchopulmonary dysplasia, sepsis
PREMATURE BIRTH, INTRAUTERINE GROWTH RESTRICTION, INTRAVENTRICULAR HEMORRHAGE, BRONCHOPULMONARY DYSPLASIA, SEPSIS
To test for differences in demographic and perinatal data between PTC and PTM groups, categorical variables (sex, intrauterine growth restriction, bronchopulmonary dysplasia, intraventricular hemorrhage, blood culture positive sepsis and extremely premature birth) were analyzed using chi-squared test, whereas continuous variables were compared using independent samples 