10.6084/m9.figshare.6388535.v1
Samuel Dumith
Samuel
Dumith
Aline Monteiro
Aline
Monteiro
Monica Muraro
Monica
Muraro
Mariane Dias
Mariane
Dias
Kara Machado
Kara
Machado
Manoela Oliz
Manoela
Oliz
Juraci Almeida Cesar
Juraci Almeida
Cesar
Evaluation of diagnostic criteria and cut-off points to predict underweight among adolescents from the Brazilian semiarid region
SciELO journals
2018
Nutritional status
Body mass index
ROC curve
Adolescent
Anthropometry
2018-05-30 02:51:09
Dataset
https://scielo.figshare.com/articles/dataset/Evaluation_of_diagnostic_criteria_and_cut-off_points_to_predict_underweight_among_adolescents_from_the_Brazilian_semiarid_region/6388535
<div><p>Abstract Objectives: to evaluate diagnostic criteria and to propose arm and calf circumference cutoff points to predict underweight in adolescents aged 13-19 years in two Brazilian municipalities of the semiarid region. Methods: underweight was defined as a Body Mass Index (BMI) of less than two z-scores, according to World Health Organization criteria (2007). Measurements of arm and calf circumferences were compared to BMI, and the diagnostic criteria for low-weight prediction were evaluated with the area under the Receiver Operating Characteristic (ROC) curve, coefficients of sensitivity, specificity, predictive values, kappa and diagnostic odds ratios. Results: the prevalence of underweight was 4.2% (CI95%= 3.3-5.0). The cutoff points for arm circumference were 22.1 cm (adolescents of both genders aged 13-15 years), and 25.1 cm and 24.0 cm, respectively, for males and females aged 16-19 years. The cutoff points for calf circumference were 30.0 cm in the first group and 31.8 cm and 31.0 cm, respectively, in the second age group. Conclusions: both anthropometric indicators analyzed evidenced a reasonable to excellent diagnostic capacity to predict underweight among adolescents.</p></div>