The Percentile Growth Curve of Live-Born Infants During 1997 and 2007 from the Tuzla Canton (BiH)
The purpose of this work was to develop the percentile growth curves of the term newborns from the Tuzla Canton for birth weight and birth length, according to weeks of gestation, in relation to gender and parity of mother in two time points (1997 and 2007). The study used data from the book of protocols from the Department of Obstetrics and Gynecology-University Clinical Center in Tuzla (OBG-UCC Tuzla). The study includes N=8823 live-born newborns from singleton pregnancies. Of these 5119 newborns were born in 1997 and 3704 newborns were born in 2007. The study excludes: stillborn infants, infants who died immediately after birth, infants who were born from multiple pregnancies (twin and multiple), infants of foreign nationals as well as infants with congenital anomalies and chromosomopathies. Male infants born in 1997 at 40 weeks' gestation had different values for primiparae (3500.00 g) and multiparae (3700.00 g) at 50th percentile. Female infants born in 1997 at 40 weeks' gestation had different values for primiparae (3400.00 g) and multiparae (3550.00 g) at 50th percentile. Values of birth weight in male infants born in 2007 at 40 weeks' gestation at 50th percentile were 3600.00 gr in primiparae and 3750.00 g in multiparae. Values of birth weight in female infants born in 2007 at 40 weeks' gestation at 50th percentile were 3450.00 g in primiparae and 3550.00 g in multiparae. The mean birth weight of the total sample was 3384.94±524.03 g and of birth length 52.89±3.03 cm. Statistically significant increases in mean values of birth weight in 2007, compared to 1997, were identified in 38th, 39th, 40th and 41st week of gestation, which is a confirmation of need to develop reference tables of growth of newborns, as well as the necessity for their constant revision.