Discontinuity indices : a tool for epidemiological studies on breastfeeding.
The Discontinuity Index (DI), which measures the percentage of infants who were exclusively breastfed (EBF) at the beginning of a given age interval and had abandoned this mode of feeding at its end, and the relative weight of this discontinuation, was introduced and employed in the National Survey on Breast Feeding and Infant Feeding Practices carried out in Cuba in 1990.
The aim of this article is to illustrate, through a specific example, the quality of Dl as a simple procedure for assessing breastfeeding trends.
The prevalence of EBF in the 14 provinces of Cuba at discharge from the maternity services and at 30,60,120, and 180 days of age, was obtained using data from a national sample of 6661 infants (4820 urban and 1791 rural) which were processed by means of a logistic regression model.
Cumulative Dl were calculated for the intervals 0-30,0-60,0-120 and 0-180 days, and partial Dl for the terms 30-60,60-120 and 120-180 days, for each province and for the whole country.
Discontinuity Indices are useful complements to prevalence rates in epidemiological studies of breastfeeding.
The separate analysis of discontinuation in different periods can be highly useful when comparing trends and in the study of the impact of breastfeeding promotion programmes focused on different age intervals.
Mots-clés Pascal : Discontinuité, Allaitement, Cuba, Nourrisson, Evaluation, Prospective, Epidémiologie, Régression logistique, Prévalence, Durée, Analyse tendance, Etude longitudinale, Antilles, Amérique Centrale, Amérique, Homme
Mots-clés Pascal anglais : Discontinuity, Breast feeding, Cuba, Infant, Evaluation, Prospective, Epidemiology, Logistic regression, Prevalence, Duration, Trend analysis, Follow up study, West Indies, Central America, America, Human
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0555921
Code Inist : 002B30A03B. Création : 01/03/1996.