Résumé : A study to identify the sociodemographic characteristics associated with induced abortion of the first pregnancy utilized data from a survey conducted in the Havana district of Diez de Octubre from 1991 through mid-1992. 659 women whose first pregnancies ended in induced abortion and 869 whose first pregnancies were carried to term formed the two study groups. The sociodemographic characteristics of the two groups differed significantly except for race. Nearly 60% who aborted the first pregnancy were under 20 years old and only 6% were 25 or over. 44% who carried the pregnancy to term were under 20 and 15% were 25 or over. 56% who aborted were single, while 70% who carried to term were married. 60% who aborted were not employed, but 64.5% who carried to term were employed. Women 20-24 years old had 2.1 times higher risk of aborting the first pregnancy and those younger than 20 had 3.3 times higher risk than women 25 and older; the relationship was statistically significant. Single women were at 9.5 times greater risk and women in union at 2.3 times greater risk of abortion than were married women. It was concluded that age under 25 and especially under 20 years and being single or in union rather than married were risk factors for abortion.
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