Development and Validation of a Photonumeric Scale for Assessment of Chin Retrusion
| Autor: | Bhushan Hardas, Ann Marx, Jean Carruthers, Lisa Donofrio, Jonathan M. Sykes, Sara Dill, Lela Creutz, Alastair Carruthers, Diane K. Murphy, Derek Jones |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male Chin Scale (ratio) Adolescent Dermatology Severity of Illness Index 030207 dermatology & venereal diseases 03 medical and health sciences Young Adult 0302 clinical medicine Severity of illness Photography Medicine Humans Body Weights and Measures Aged Orthodontics Aged 80 and over Observer Variation business.industry Reproducibility of Results General Medicine Intra-rater reliability Middle Aged Confidence interval Inter-rater reliability medicine.anatomical_structure 030220 oncology & carcinogenesis Chin augmentation Surgery Original Article Female business Kappa |
| Zdroj: | Dermatologic Surgery |
| ISSN: | 1524-4725 1076-0512 |
| Popis: | Background A validated scale is needed for objective and reproducible comparisons of chin appearance before and after chin augmentation in practice and clinical studies. Objective To describe the development and validation of the 5-point photonumeric Allergan Chin Retrusion Scale. Methods The Allergan Chin Retrusion Scale was developed to include an assessment guide, verbal descriptors, morphed images, and real subject images for each scale grade. The clinical significance of a 1-point score difference was evaluated in a review of multiple image pairs representing varying differences in severity. Interrater and intrarater reliability was evaluated in a live-subject validation study (N = 298) completed during 2 sessions occurring 3 weeks apart. Results A difference of ≥1 point on the scale was shown to reflect a clinically meaningful difference (mean [95% confidence interval] absolute score difference, 1.07 [0.94-1.20] for clinically different image pairs and 0.51 [0.39-0.63] for not clinically different pairs). Intrarater agreement between the 2 live-subject validation sessions was substantial (mean weighted kappa = 0.79). Interrater agreement was substantial during the second rating session (0.68, primary end point). Conclusion The Allergan Chin Retrusion Scale is a validated and reliable scale for physician rating of severity of chin retrusion. |
| Databáze: | OpenAIRE |
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