6 resultados para Vieillissement démographique

em Bioline International


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Population ageing in sub-Saharan Africa raises new concerns about mature adult mortality patterns and differentials, but little is known in this region due to the lack of data. This study examines the long term effects of reproductive history on female mortality in three local rural areas in Senegal where population have been followed up for decades. We study mortality differentials according to the past reproductive history of females aged between 50 and 70 in the period 1985-2011. We find that age at first and last deliveries impact mortality levels, as does the number of children ever born. Looking at the sex of the childrenand their vital status at age 5, we note that the number of boys is negatively associated with mortality rates, by a larger extent than the number of girls. In virilocal societies, social factors probably have a strong impact. This result opens future research avenues on the issue of the care of the elderly.

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This paper explores the factors associated with the place of death in Burkina Faso, based on mortality data from the Kaya Health and Demographic Surveillance System (Kaya HDSS). A multilevel logistic regression model with random intercept is used to determine the factors associated with the place of death. More than half of the deaths (55%) occur at home. Age, place of residence, distance to the health care centre and cause of death are statistically associated with the place of death. Seniors (50 and over) are more likely to die at home compared to other age grous (66.81 % against 35.9 % for 5-14 years and 44.9 among children under 5 years, p = 0.001). The multivariate results confirm the effect of age, place of residence, living standards quintile and cause of death. The high proportion of deaths occurring at home challenges policy makers in the health care system and calls for programs to adapt the supply of heath care.

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Les enjeux de développement en rapport avec la santé urbaine des enfants en Afrique sub-saharienne deviennent d’autant plus importants qu’on a eu à observer dans certaines villes un paradoxe sanitaire se traduisant par une mortalité relativement plus élevée que celle du milieu rural. En outre, concilier la croissance rapide des villes africaines avec l’objectif d’un environnement sanitaire adéquat et adapté à l’ampleur et à la diversité des besoins relève du défi. Cet article propose un état des lieux critique de la littérature sur la santé urbaine, à travers une synthèse de 82 travaux scientifiques portant sur les relations entre dynamiques urbaines et sanitaires. L’étude accorde un regard particulier à la santé des enfants en Afrique subsaharienne francophone. Cette synthèse met en évidence les points de convergences et de divergences de santé urbaine, et aborde aussi, sous un angle critique, les aspects méthodologiques. Elle met en évidence une pluralité de situations sanitaires urbaines, ainsi que la complexité des mécanismes explicatifs des relations entre dynamique urbaine et santé des populations.

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En Afrique sub-saharienne, les recensements constituent une source de données fondamentale pour estimer la mortalité, en raison de l’incomplétude de l’enregistrement des décès à l'état civil. Afin d’évaluer la fiabilité des niveaux de mortalité qui peuvent en être déduits, nous appliquons différentes méthodes d’estimation à des extraits des recensements sénégalais de 2002 et 2013, couvrant trois observatoires de population situés à Bandafassi, Mlomp et Niakhar. Les taux de mortalité des moins de cinq ans tirés du nombre d’enfants nés vivants et survivants s’avèrent plus bas que les niveaux attendus au vu des données du suivi démographique. Les estimations déduites des déclarations sur la survie des parents sont largement inférieures aux niveaux de mortalité adulte réellement observés selon le suivi. Par contre, les taux de mortalité par âge basés sur les décès récents déclarés dans les ménages sont conformes aux données du suivi, sauf pour la mortalité infantile qui est sensiblement sous-déclarée en 2002. Cette évaluation confirme que les méthodes indirectes procurent des estimations qui ne peuvent être considérées isolément mais doivent plutôt être systématiquement comparées les unes aux autres. Des études d’évaluation directes menées au niveau individuel à l’aide d’appariements sont nécessaires pour mieux identifier les différentes sources de biais.

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Child morbidity and mortality in Ethiopia is mainly due to vaccine preventable diseases. Although numerous interventions have been made since the 1980’s to increase vaccination coverage, the level of full immunization is low in the country. This study examines factors influencing children’s full immunization based on data on 1927 children aged 12-23 months extracted from the 2011 Ethiopian Demographic and Health Survey. Multinomial logistic regression model was fitted to identify predictors of full immunization. The result shows that only 24.3% of the children were fully immunized. There was significant difference between regions in immunization coverage in which Tigray, Dire Dawa, and Addis Ababa performed well. In Oromia, Afar, Somali, Benishangul-Gumuz, and Gambela regions, the likelihood of children’s full immunization was significantly lower. Children born to mothers living in households with better socio-economic status, with frequent access to media, and who visit health facilities for antenatal care were more likely to be fully immunized. The results imply the importance of narrowing regional differences, improving women’s socio-economic status and utilization of antenatal care services, and strengthening culture-sensitive media campaign as a means of achieving full immunization of all children

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Limited data exits on factors influencing fertility in Zambia. This study examined underlying determinants of fertility patterns and levels in Zambia. Data extracted from the 2007 Zambia Demographic and Health Survey was analysed using bivariate and multivariate logistic regression. Of 7146 women aged 15-49 years, age group 25-29 years experienced the highest prevalence of births (28.5%). Married women accounted for 27% of all births. Women with low education recorded more births (27%) than those with higher education (9.5%) (P<0.001). Fertility was higher among the poorest (28%) compared to the richest (12%) (P<0.001). Though not statistically significant, urban areas recorded more births (25%) than rural areas (15%). Education and wealth significantly influence fertility Zambia. Fertility management strategies should consider these factors and their fertility reducing effects. Improving education and wealth status of women can contribute to fertility reduction, particularly rural women. Lower fertility, with reduced mortality and migration, would provide less pressure on distribution of the limited economic resources of the country.