Ethnic Differentials in Risks of Childhood Anemia: Evidence from DHS 2006 and 2011

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Yashas Vaidya

Child undernutrition remains one of most of the most challenging aspects of the nutrition transition in the lower and middle-income countries of the developing world. Among U.N. and MDG regions, South Asia  (classified  as  South  Central  Asia  or  Southern  Asia)  is  one  those  severally  affected  by child undernutrition, and in the case of several indicators even more than Sub-Saharan Africa (United Nations Children’s Fund, World Health Organization, and The World Bank 2012). In the last couple of decades other regions, including Africa, have made progress in reducing undernutrition—measured by indicators such  as  stunting,  underweight  and  wasting.  However,  Nepal,  like  other  parts  of  South  Asia,  still demonstrates  high rates  of undernutrition. While several explanations have been proposed, there is no consensus on the specific reasons for the persistence of child undernutrition. This project investigates how social determinants of child undernutrition can add to our understanding of such persistent rates. Specifically, it will examine anemic status in children under five in Nepal using Demographic and Health Survey (DHS) data from 2006 and 2011.

Health disparities among different social groups can result from stratification and, in turn, lead to the reproduction of social inequality.  This  project  investigates  the  presence  of  ethnic  disparities  in  child health,  examining  child  anemia  in  Nepal  in  the  early  21st century.  It uses childhood anemia as the outcome of interest, due to its well-recognized links to protein energy malnutrition. Child anemia is a good indicator of health status, as it can reflect nutritional deficiencies in important micro-nutrients like iron  and  vitamin  A  (Ramakrishnan  and  Semba  2008;  Semba  and  Bloem  2002)  as  well  as  exposure  to malaria or parasitic infections  (Calis et al. 2008; Dreyfuss and Stoltzfus 2000). Nutritional assessments are  particularly  important  in  developing-country  contexts  due  to  the  synergistic  relation  between undernutrition  and  infection  on  mortality  (Schroeder  2008).  An  infection  is  much  more  dangerous  to children  affected  by  undernutrition  and  the  combination  leads  to  dangerous  increases  in  risks  of mortality. Crucially, mortality risks increase not just with severe undernutrition but also in its mild and moderate forms.  Using  Demographic  and  Health  Survey  data,  this  study  identifies  disparities  in  child anemia  among  broadly  divided  ethnic  sub-groups  in  Nepal.  Based  on  hemoglobin  levels,  the  surveys detected  anemia  (moderate  or  worse,  <9.9  g/dl) in  22  (in  2006)  and  18  (in  2011)  percent  of  children aged between 6 months and 5 years (below 59 months). This study attempts to show that considering the social context of child undernutrition will explain the persistence of such high rates.