Positive and negative likelihood ratios of two anthropometric indices in the diagnosis of nutritional situations overweight and obesity
Positive and negative likelihood ratios of two anthropometric indices in the diagnosis of nutritional situations overweight and obesity
DOI:
https://doi.org/10.54167/tch.v14i3.625Keywords:
likelihood ratios, waist/height index, abdominal circumference index, overweight, obesityAbstract
Objective. To determine whether two anthropometric indices have sufficient prognostic efficiency or moderate prognostic efficiency by combining sensitivity and specificity using positive and negative likelihood ratios in a single expression. Material and methods. Quantitative epistemological approach. Descriptive observational epidemiological study without directionality and with prospective temporality. Three hundred adult patients of both genders who attended the Hospital Integral "Jose Maria Morelos" were studied. As a reference test or Gold Standard was used the Equation of the Metropolitan Life Insurance Company. Results. The results for the positive likelihood ratios corresponded to 13.41 and 1.63 for the anthropometric indices, Waist / Height Index (WHI) and Abdominal Circumference (AC), respectively. The results for the negative likelihood ratios corresponded, respectively, to 0.07 and 0.38 for the WHI and AC anthropometric indices. Conclusions. It is concluded that the best anthropometric index for the diagnosis of pathological nutritional situations overweight and obesity corresponds to the WHI, since the results of the positive and negative likelihood ratios report sufficient prognostic efficiencies. On the other hand, the results of the positive and negative likelihood ratios report, respectively, negligible prognostic efficiency and poor prognostic efficiency for AC.
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