Receiver Operating Characteristic (ROC) Curves to Identify Anthropometric Indices to Predict Nutritional Status of the Hill Korwa Children of Sarguja District, Chhattisgarh

Author(s): Irshad Khan and J.K. Nayak

Abstract: The magnitude of the problem of malnutrition among children under five years of age is high throughout in India. The objectives of this study are to explore the levels and trends in malnutrition of Hill Korwa children aged 0-5 years and reveal their overall nutritional status using a comparison between Receiver Operating Characteristic (ROC) curves. The crosssectional study was conducted during Dec-2015 to 16. The present study is based on anthropometric data from 1021 (595 boys and 426 girls) children between age of 0 to 5 years, from three blocks named Lundra, Batauli, and Sitapur in Sarguja district, Chhattisgarh. Purposive sampling was done for the selection of research participants. Schedules were also been prepared for collecting the data from the research participants, which contains basic information like age, sex etc. of the children for qualitative data in-depth interviews and observation were carried out in the field. Different indexes were applied for assessing nutritional status was determined based on Weight/Height2 and Waterlow (Height-for-age & Weight-for-height) and Dughdale, Ponderal, Rao, Kanawati and Head circumference and Chest circumference Classifications. Prevalence of malnutrition can be well defined by the ROC curves. Among these different indexes it can be seen that the highest sensitivity is shown by the Waterlow classification while for the specificity Dughdale classification shows the highest percentage. For the present nutritional study on Hill Korwa children from 0 to 5 years, Dughdale index is better related to the other indices. From the ROC curves it has been found that Dughdale index covered maximum area (0.860) under ROC curve. As a result Dughdale index can be considered as a better index to assess the nutritional status of the Hill Korwa children in the present study.

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