[Occurrence of triplet births].
The authors studied all cases of triplets who were born at the Department of Gynaecology and Obstetrics of University Clinical Centre in Belgrade, over a twenty-year period (1970-1989). Thirty sets of triplets were born in this period. This means that one set of triplets was born per 5845 births. Preterm deliveries occurred in 19 cases. Liveborn children had lower Apgar score. Common birthweight was slightly below 1800 grams. In more than one half of the foetuses malpresentation was found. More than one fourth of sets were delivered by Cesarean section. Total foetal loss reached 23.33% and purified perinatal mortality rate reached 11.11%. The triplet diagnosis on time is important because of the necessary prevention measures and appropriate therapy.