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Browsing by Subject "Child undernutrition"

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    Epidemiology and social determinants of chronic diseases attributed adult mortality and its influence on maternal and young child nutrition in Tigray, 2009-2015: evidence from Kilte Awlaelo- Health and Demographic Surveillance Site
    (2023) Abera, Semaw Ferede; Scherbaum, Veronika
    In Ethiopia, the burden of disease related to communicable diseases has recently decreased significantly, while morbidity and mortality due to non-communicable diseases (NCDs) have increased. At the same, maternal and child malnutrition remained a major public health problem of Ethiopia. In developing countries, where health insurance is largely unavailable, individual medical conditions can also affect the overall and nutritional well-being of household members. In particular, the occurrence of disease and adult mortality in households can affect the nutritional well-being of the most vulnerable household members, especially lactating mothers and their young children. If the diseases are of chronic nature, which usually are costly and adult household members die from it in the long-term, this can be devastating for the family. The aim of this Ph.D. project was to investigate the epidemiology and social determinants of NCDs-attributed adult mortality, and to examine the association of chronic diseases attributed adult mortality with undernutrition of lactating mothers and their young children in rural population of Kilte Awlaelo-Health and Demographic Surveillance Site (KA-HDSS), Eastern Zone of Tigray, Ethiopia. During the data analysis, causes of death in adults were classified into chronic and non-chronic causes. The category of adult mortality due to chronic diseases refers to all causes that may be characterized by a long duration of illness. This group includes all deaths caused by NCDs and chronic communicable diseases such as tuberculosis and HIV/AIDS. The thesis has three articles, all published in peer-reviewed journals. The first article reports findings on the epidemiology and social-determinants of adult mortality caused by NCDs among 45,982 adult residents of KA-HDSS using population-based longitudinal data collected from 2009 to 2015. The second article tested whether the burden of undernutrition was higher among lactating mothers who were living in households with adult mortality from chronic diseases than among lactating mothers living in households with no adult mortality from chronic diseases. The third article examined whether there was an association between undernutrition of children and adult mortality from chronic diseases. Both longitudinal and cross-sectional data were used in the second and third articles. To our knowledge, this study showed for the first time that adult mortality caused by NCDs varied according household members’ relationship to their household head: extended family and non-family members of the household head had higher hazard of mortality compared to the household heads. In addition, this work can be considered as the first study from a low-income setting to examine whether mortality of an adult household member from chronic diseases is associated with undernutrition of lactating mothers and their young children. The results of the first study indicate a double mortality burden from both communicable diseases and NCDs in the study population. Between 2009 and 2015, the leading causes of NCDs-attributed adult mortality were cardiovascular diseases, cancer and renal failure. Compared to heads of households, extended family and non-family co-residents had an increased hazard of mortality from NCDs. Literacy and younger age were protective factors against adult mortality caused by NCDs. However, the protective role of literacy against adult mortality from NCDs decreased with increasing age. Next, we assessed the level of undernutrition among the lactating mothers and examined its association with household-level occurrence of adult mortality from chronic diseases by controlling the effect of a wide range of epi-demographic and agro-ecological variables. Nearly two-fifths (38%; 95% CI: 36.1, 40.1%) of the mothers were undernourished. We found an increased risk of maternal undernutrition for lactating mothers who were living in households which experienced adult mortality from chronic diseases. In addition, maternal undernutrition was strongly associated with recent history of household-level morbidity, poor health-seeking practice, lack of diverse food crops, and a low index score for housing and environmental factors. In the third article, we determined the burden of undernutrition among children of complementary feeding age (6 to 23 months) and its factors within the context of nutrition-specific and -sensitive drivers of young child undernutrition. Here, mortality from chronic diseases were constructed as a nutrition-specific factor. We found high prevalence of wasting (13.7%; 95% CI: 12.1, 15.5%) and inadequate child dietary diversity (81.3%; 95%CI: 79.2, 83.1%). Adult mortality history from chronic diseases was not associated with young child undernutrition and child dietary diversity. However, child undernutrition was strongly associated with recent history of household-level morbidity, maternal undernutrition, low child dietary diversity, poverty, larger family size, insecure employment of household heads, and living in highland areas. Poor household wealth status and lack of diverse food crops production, particularly in highland areas, were also strongly associated with lower child dietary diversity. Overall, this thesis has shown that an epidemiological transition is ongoing in the surveillance population. Population-based intervention measures are recommended that aim to reduce NCD-related adult mortality by targeting the leading causes of death and focusing on vulnerable population subgroups, such as the extended family and nonfamily household members. In this study, there was no association between the occurrence of chronic diseases attributed adult mortality and young child undernutrition. However, adult mortality from chronic diseases was associated with maternal undernutrition. Our findings appear to call for multi-sectoral interventions, mainly by the agriculture, nutrition and health sectors, to promote nutritional well-being of lactating mothers and their dyads in the long-term.