Sensitivity and Specificity of Cephalometric Measures for the Diagnosis of Sagittal Skeletal Malocclusion
| Autor: | Arelis Pérez, Natalia Echeverry, Diana María Barbosa-Liz, Lucia V. Bernal, Adriana Posada |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Orthodontics
education.field_of_study Receiver operating characteristic business.industry Cephalometry Population Area under the curve Gold standard (test) Craniometry medicine.disease Sagittal plane medicine.anatomical_structure ROC Curve Pediatrics Perinatology and Child Health Medicine Malocclusion business education General Dentistry Cut-point Diagnostic Techniques and Procedures |
| Zdroj: | Pesquisa Brasileira em Odontopediatria e Clínica Integrada, Volume: 19, Article number: e4583, Published: 02 SEP 2019 |
| Popis: | Objective: To evaluate and compare sensitivity and specificity of ANB, Wits, APDI and AF-BF to diagnose sagittal skeletal malocclusions, in children between 6 to 12 years old, using ROC curves, a widely accepted method for the analysis and evaluation of diagnostic tests. Material and Methods: A descriptive-comparative study of diagnostic tests was conducted. From a population of 3,000 children, a non-probabilistic sample of 209 was selected. The clinical classification of the patients as class I, II or III, made by a group of experts based on the visual inspection of models and photographs, was chosen as the gold standard. After calibration (ICC>0.94) the variables were measured in cephalograms. Eight ROC curves were plotted (I vs II, and I vs III for each one of the variables). The area under the curve was measured and compared (Ji-square test). Cut points were established. Results: To discriminate Class I from II, ANB showed the largest area under the curve (AUC) (0.876) and the cut point (best sensitivity and specificity) was at 5.75°. To discriminate class I from III, Wits showed the largest AUC (0.874) with a cut point of -3.25 mm. There were no statistical differences between the AUC for the four variables (p=0.48 y p=0.38 for class I-II and I-III). Conclusion: ANB and Wits performed better for the diagnosis of class II and III, respectively. Cut points in children were different from those reported in adults. |
| Databáze: | OpenAIRE |
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