SciELO - Scientific Electronic Library Online

vol.83 issue2Henoch-Schönlein purpura: recurrence and chronicityClinical value of lactate measurement and nucleated red blood cell counts in the placental segment of the umbilical vein of premature newborns for diagnosis of hypoxia-ischemia author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Jornal de Pediatria

Print version ISSN 0021-7557On-line version ISSN 1678-4782


ALMEIDA, Carlos A. N. de; PINHO, Adriana P.; RICCO, Rubens G.  and  ELIAS, Cecília P.. Abdominal circumference as an indicator of clinical and laboratory parameters associated with obesity in children and adolescents: comparison between two reference tables. J. Pediatr. (Rio J.) [online]. 2007, vol.83, n.2, pp.181-185. ISSN 0021-7557.

OBJECTIVE: To evaluate the sensitivity and specificity of two pediatric abdominal circumference reference tables to detect abnormally high body mass index, total cholesterol, fasting blood insulin and leptin levels, and homeostasis model assessment values. METHODS: A total of 624 male and female subjects, with ages ranging from 7 to 18 years, were evaluated. All children were recruited from two public schools. Venous blood samples were collected for determination of fasting plasma insulin, glucose, leptin, and total cholesterol levels. Weight, height and abdominal circumference were assessed according to internationally accepted guidelines. Contingency tables were constructed, comparing the presence or absence of increased abdominal circumference, according to cutoff points established by Taylor et al. and Freedman et al., with the presence or absence of abnormal values in the laboratory tests. RESULTS: Sensitivity values were consistently higher for the table by Taylor et al., whereas the table by Freedman et al. showed greater specificity. Positive predictive values were quite low in general, and were only relevant for body mass index. CONCLUSIONS: Results indicate that the table by Taylor et al. is best for screening purposes, as it identifies individuals at higher risk of presenting abnormal test results. On the other hand, the reference table by Freedman et al. is more suitable for clinical practice, as it could be used to replace laboratory measurements, such as blood insulin or leptin levels, which may not be available at all sites.

Keywords : Abdominal circumference; obesity; adolescent; dyslipidemias; insulin resistance; leptin.

        · abstract in Portuguese     · text in English | Portuguese     · English ( pdf epdf ) | Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License