Exponential model for weight using ‘RJ index’
- 21 Downloads
We screened a sample of 204 children between the age of 3 months to 5 years and 3 months were during a general health survey conducted by the Department of Community Medicine, Kasturba Medical College, Mangalore from March 1992 to December 1993 at Kumpala village under PHC Ullal about 10 kms from Mangalore City. We developed a new index RJ as RJ=Mid upper Arm Circumforence×(Height)2×10−4 and tested the correlation of RJ index and weight for age. We found the correlation coefficient (r=0.8) to be very significant (P<0.001). Thus we propose the model as Weight=A×exp (RJ×B). We found that the available data fit in this model. We hope that this study will be a new step in looking at arm circumference as a tool in estimating weight of pre-school children.
Key wordsExponential model RJ index Mid-upper arm Circumference
Unable to display preview. Download preview PDF.
- 2.Trowbridge F.L., Normal Staehling. Sensitivity and specificity of arm circumference in identifying malnurished children.Am. J. Clin. Nutrition 1980; 33: 687–695.Google Scholar
- 5.Ramakrishnan R., Venkata Rao T., Prasad. Age indeppendent anthropometric index for identifying undernourished children (5–10 years).Indian Paediatr 1992; 29–60.Google Scholar
- 6.Measuring change in nutritional status. Guidelines for assessing the nutritional impact of supplementary feeding programmes for vulnerable groups. Geneva: WHO, 1983.Google Scholar
- 8.Hassard, Thomas M.Understanding Biostatistics. Missouri: Mosby Year Book, 1991; 175–177.Google Scholar