Survival trees: an alternative non-parametric multivariate technique for life history analysis.
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Biomedical subjects
Publications and source records attributed to A De Rose.
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Repeated cross-sectional surveys have been conducted to collect information on the trend of HIV prevalence among drug users attending drug treatment centers in Italy in the years 1990-92. Annual HIV prevalence was 31.5% in 1990, 29.1% in 1991, and 24.6% in 1992, showing a declining trend. HIV prevalence was higher in the North than in the South of the country, and among females than in males. Drug users entering treatment for the first time during the study period were less likely to be infected than old clients.
Two surveys were conducted in 1990 and 1991 in order to estimate the prevalence of HIV infection among injecting drug users attending drug treatment centers throughout Italy. Among the 35,073 IDUs attending these facilities in 1990, 32.1% were HIV-positive. In 1991, 29.7% of 41,794 IDUs were HIV-positive. HIV prevalence was higher among prior attendees compared to new entrants (38.0% vs. 20.5% in 1990, and 35.8% vs. 16.6% in 1991); prevalence was also higher among females. These findings suggest that HIV prevalence among Italian drug users is slowly declining.
This is an analysis of marital dissolution in Italy, with a focus on the life events and socioeconomic factors that put individuals at high risk of a marital breakup. The author notes that Italian society still largely conforms to traditional conjugal models and attitudes toward cohabitation and divorce. "Women most exposed to the risk of marital disruption seem to be those who married very young, who have had no more than one child, who are better educated, who have full-time jobs and who reside in large towns in the north-west of Italy. In addition, a woman who cohabits with her partner before marrying him is more likely to separate than a woman entering marriage directly."
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"The purpose of this paper has been to assess empirically the question of whether women's growing economic independence, resulting from better education, is one of the major factors in determining the timing of marriage and motherhood in Italy.... We have analysed the life histories of a sample of Italian women from different cohorts, collected on the occasion of the National Survey on Family Structures and Behaviours carried on by the National Institute of Statistics.... The effect of level of education is negative. That is, it increases the age of entry into marriage. However, the size of the effect is small and seems limited to the passage from youth to adulthood, because the longer time the woman spends in the educational system increases the age at which she feels herself ready to marry. As far as the timing of the first child, it is almost independent of educational attainment, once marital status is taken into account." (SUMMARY IN FRE AND ITA)
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