Perinatal characteristics and prevalence of low birth weight infants in the Federation of Bosnia and Herzegovina: prospective multicentric study.

Aim To investigate the prevalence and obstetrical characteristics of low birth weight infants (LBWIs) in ten Cantons of the Federation of Bosnia and Herzegovina (FBiH). Methods The prospective study included newborns of both genders, gestational age (GA) of 22 to 42 weeks and birth weight(BW) of less than 2,500 grams in the period 1 January 2009 to 31 December 2009. Results In the observed period, 22897 neonates were born, out of whom 669 (2.9%) had a BW less than 2500 grams (average BW was 1295 grams; SD ± 234.2; a coefficient of variation of 0.58). The average GA was 31.4 weeks of gestation. The average lifespan of mothers was 27.7 years (SD ± 1.2). The average Apgar scor (AS) in the first minute was 4.6 (SD ± 2.1) and in the fifth minute it was 6.6 (SD ± 1.9). The LBWIs were most commonly delivered by primiparas, 317 (47.5%). Of the 669 LBWIs, 411 (61.4%) were born per vias naturalis, with cephalic presentation. The highest number of LBWIs was born in Sarajevo Canton, 3.7%, and Central Bosnia Canton, 3.7%. The lowest prevalence was in Posavina Canton, 1.1%. The largest late fetal mortality was in Central Bosnia Canton, 7.7 ‰. Conclusion This study has determined a relatively low prevalence of LBWIs and other examined obstetrical characteristics that are in correlation with European and Global World data.