La santé des enfants demeure une question prioritaire en Afrique sub-saharienne. Les disparités en matière de mortalité entre pays et au sein des pays persistent et se sont fortement accrues durant la dernière décennie. En dépit de solides arguments théoriques voulant que les variables contextuelles soient des déterminants importants de la santé des enfants, ces facteurs, et particulièrement les influences du contexte local, ont été étudiées beaucoup moins souvent que les caractéristiques individuelles. L'objectif principal de la présente thèse est d’identifier les déterminants individuels et contextuels associés à la mortalité des enfants de moins de 5 ans en Afrique sub-saharienne. L’analyse systématique est basée sur les données les plus récentes des enquêtes démographiques et de santé (DHS/EDS). Deux questions spécifiques sont examinées dans cette thèse. La première évalue la mesure dans la quelle le contexte local affecte la mortalité infanto-juvénile, net des caractéristiques individuelles. La seconde question est consacrée à l’examen de l’effet du faible poids à la naissance sur le risque de décès avant 5 ans. Par rapport à la première question, les analyses multi-niveaux confirment pour plusieurs pays étudiés l’importance simultanée de l’environnement familial et du contexte local de résidence dans l’explication des différences de mortalité infanto-juvénile. Toutefois, par comparaison au contexte familial, l’ampleur de l’effet de l’environnement local paraît assez modeste. Il apparaît donc que le contexte familial reste un puissant déterminant de la mortalité des enfants de moins de 5 ans en Afrique sub-saharienne. Les résultats indiquent en outre que certains attributs du contexte local de résidence influencent le risque de décès des enfants avant 5 ans, au-delà des facteurs individuels dans plusieurs pays. Cette thèse confirme l’effet contextuel de l’éducation sur la mortalité des enfants. Cet effet s’ajoute, dans certains pays, à l'effet positif du niveau individuel d’éducation de la mère sur la survie de l'enfant. Les résultats montrent aussi que le degré d’homogénéité ethnique de la localité influence fortement la probabilité de mourir avant 5 ans dans certains pays. Globalement, les résultats de cette thèse suggèrent que le défi de réduire la mortalité des enfants va au-delà des stratégies visant uniquement les facteurs individuels, et nécessite une meilleure compréhension de l’influence des facteurs contextuels. Par rapport à la deuxième question, les résultats montrent également que les facteurs individuels restent aussi très importants dans l’explication des différences de mortalité des enfants dans plusieurs pays étudiés. Nos résultats indiquent que les différences de mortalité selon le poids à la naissance sont significatives dans tous les pays inclus dans l’analyse. Les enfants nés avec un faible poids (moins de 2500 grammes) courent presque 2 à 4 fois plus de risques de mourir au cours des cinq premières années de vie que les enfants de poids normal, même après correction pour l’hétérogénéité non observée. Ce résultat suggère qu’en plus des mesures visant à réduire la pauvreté et les inégalités de revenus, la réduction de l’incidence du faible poids à la naissance pourrait apporter une contribution majeure aux Objectifs du Millénaire pour le développement; spécialement comme une stratégie efficace pour réduire le niveau de mortalité parmi les enfants de moins de cinq ans. / Child health remains a priority area for health policy in sub-Saharan Africa. Disparities in child mortality between and within countries have persisted and widened considerably during the last few decades. While researchers have devoted considerable attention to the impact of individual-level factors on child mortality, less is known about how community characteristics and institutions affect health outcomes for children, even though they have a prominent role in theoretical models. The aim of this thesis is to identify individual and contextual effects of child mortality by using data from the latest round of Demographic Health Surveys for all countries in sub-Saharan Africa. Two sets of questions are addressed in this research. First, we evaluate the impact of contextual factors on the risk of dying before age 5 net of the effect of individual factors. The results indicate that some attributes of the community influence the mortality risks of children, over and above the intermediate factors included in this investigation. For instance, in half of the countries under study a 1% increase in the proportion of children fully immunized in the community is associated with a decrease of 17-79% in the odds of dying before age 5. The proportion of women in the community completing secondary school also significantly increases child survival. This effect is, in some countries, in addition to the positive individual-level effect of the child’s own mother being educated. Net of individual and household characteristics, higher community-level ethnic homogeneity is associated with decreased odds of dying before age 5 in some countries. Overall, the results of this study therefore suggest that the challenge to reduce under-five mortality goes beyond addressing individual factors, and requires a better understanding of contextual factors. Second, the study exploits recent national survey data for nine countries in sub-Saharan Africa to investigate the association of LBW and mortality not only in infancy but also during childhood, using a standardized methodology to adjust missing birth weight data from household surveys while accounting for unobserved family-level factors (genetic or behavioral) that may modify the relationship between birth weight and under-five-years mortality. We find evidence of the impact of birth weight on the risk of dying not only in infancy but also during childhood, which remains strong and significant in all countries even after controlling for potential confounding factors. The main policy implication of our findings is that reducing the incidence of LBW may be an important prevention strategy to combating child mortality in sub-Saharan Africa countries.

Text in English, with Annexures in English and Amharic / Annexure 5 and Annexure 7 "Questionnaire for qualitative study" in English and Amharic / The Ministry of Health (MOH) and its partners are determined to prevent and manage preventable causes of morbidity and mortality in mothers, neonates and children. In the last decade, special emphasis has been given to increasing the number of health facilities that provide maternal and child health services (MNCH), huge production of skilled birth attendants (SBAs), and equipping the health facilities to improve the utilisation of quality services. This study investigated the community perspectives of health service utilisation and proposes a framework for improving the utilisation of the available SBA and postnatal care (PNC). PURPOSE The purpose of this study was to develop a framework for the utilisation of skilled care for delivery and postnatal care by women of childbearing age (15-45). METHODOLOGY The study used a Sequential explanatory Mixed Methods Approach to investigate the utilisation of SBA and PNC in a district in Ethiopia. The Delphi Technique helped to solicit input from maternal health care experts on the development of a Framework for utilisation of SBA and PNC. This study utilised the Anderson Health Utilisation Model. RESULTS In the study, 79.8% of the women who delivered within 12 months prior to this study received ANC from SBA. Baby care and PNC for the mother and baby received from SBA were at 248 (71.5%), 55 (15.8%), and 131 (38%) respectively. The study further found that women who can read and write and were educated are more likely to utilise SBA and receive quality health care services. The study showed that certain factors such as disrespecting service users, abusing service users’ lack of trust on the SBA by service users, religion and superstition contribute negatively to the use of SBAs. None of the predisposing, enabling and need factors predicted the use of SBA for PNC by the mothers. Nevertheless, through the focus group discussions (FGDs) and individual interviews (IDI), it was revealed that there was a widespread knowledge and perception gaps in the community related to the importance of postnatal period and PNC. Religious sanctification also have imperative role in hampering PNC service use by the mothers. The Health care workers (HCWs) also lacked the keenness and orientation to provide the service. Babies born from families with monthly income equal to 500 or above USD were more likely to use PNC within 45 days. There was a widespread misconception in the community that Babies do not need PNC before 45 days of birth except for vaccination purpose. CONCLUSION To examine their role in health service utilisation for SBA and PNC, researches can integrate social support and social network to the Andersen’s health-service utilisation model. A framework for utilisation of SBA and PNC is proposed. The researcher recommends developing an utilisation tool kit that specifies the detail operationalisation of the framework. / Health Studies / D. Litt. et Phil. (Health Studies)

In the first paper, the effects of trade openness and conflict risk on income inequality are investigated. I obtain that the effect of trade openness on inequality depends on the level of conflict risk. More precisely, there exists a threshold effect: trade openness worsens income inequality in countries where the risk of internal and external conflicts is high. Moreover, I find that countries with higher risk of conflicts are more unequal, and that more ethnically diverse countries increase income inequality. Finally, I obtain that democratic regimes decrease inequality. In the second paper, we analyze the general-equilibrium consequences of property right enforcement in the natural resource sector. Assuming that exclusion requires both private and public enforcement efforts, we compare states that differ by their ability to provide protection services. This ability is referred to as state capacity. We obtain that public protection services can effectively act as either substitutes or complements to private enforcement, and this strongly depends on state capacity. Under low state capacity, an increase in state protection services leads to a drop in national income as labor is drawn away from the directly productive activities. The opposite holds for high-capacity states. As a result, public protection services have an ambiguous effect on national income even though they can unambiguously increase resource rents. In the third paper, we argue that the right to hold dual citizenship can generate important social and economic benefits beyond its political dimension. We assemble a large panel dataset on dual citizenship. We find that in developing countries, dual citizenship recognition increases remittance inflows by US$1.19 billion, GDP and household consumption, and improves child survival. In developed countries, however, dual citizenship recognition decreases remittance inflows by US$1.44 billion, but increases FDI by US$828 billion, raises household consumption, gross capital formation and trade, and provides incentives for skilled workers to move to other countries.

MCur / Department of Advanced Nursing Sciences / See the attached abstract below