Author/Editor		Koželj, Vesna; Vegnuti, Miljana
Title		Time series analysis of births of children with orofacial clefts
Type		članek
Source		J Craniomaxillofac Surg
Vol. and No.		Letnik 28, št. 4
Publication year		2000
Volume		str. 201-3
Language		eng
Abstract		Observation of the dates when children with orofacial clefts were born, gives the impression that they were born in cluster, between which there were intervals of different duration. An analysis was therefore undertaken of the period between 1972 to 1997 when 1112 such children were born. For diagnostic checking of stationarity of the time series the Box-Ljung test was used. Since it was found That the time series was stationary, analysis of autocorrelation2 function was performed. The results confirmed the impression that children with clefts are born in duster, between which there are gaps of different duration. This suggests that the birth of a child with a cleft is not a random and independent event.
Descriptors		CLEFT LIP CLEFT PALATE INFANT, NEWBORN INCIDENCE TIME FACTORS SLOVENIA REGISTRIES