* Effect of body mass index percentile on skeletal maturation of cervical vertebrae and hand-wrist and dental maturation.
- Objective: The aim of this study was to evaluate the relationship between age- and gender-specific body mass index (BMI) percentile and skeletal and dental maturation in Turkish adolescents.Materials and methods: A sample of 429 patients (171 males, 258 females aged between 7 and 17 years) was selected. Skeletal maturation was identified in the hand-wrist radiography by Björk, Grave and Brown (BGB), and the cervical vertebrae maturation (CVM) method defined by Hassel and Farman in lateral cephalometric radiography. Dental maturation was determined by the Demirjian method. BMI was calculated by reference curves used for Turkish children. A regression model was used for the relationship between BMI percentile and skeletal and dental maturation.Results: There was no significant correlation between BMI and skeletal maturation of cervical vertebrae and dental maturation. A one-percentile increase in BMI percentile accelerates the increase of period (likelihood of being post-pubertal period) to 1.016 times (p < .05). Skeletal maturation of hand-wrist and cervical vertebrae and dental maturation were more prominent in females compared to males (p < .05). Males and females were not statistically significantly different in BMI percentile (p = .52).Conclusions: BMI may be considered before deciding to estimate the skeletal and dental maturation in an individual by the relevant methods.
% 2020 Disability and rehabilitation. Assistive technology
* Toward greater involvement of youth with complex communication needs in the selection of augmentative and alternative communication devices.
- Purpose: The studyaim was to examine the measurement properties of the Youth Evaluation of Products Scale for Augmentative and Alternative Communication (YEP-AAC) as a means to understand the product attitudes of youth toward their AAC devices.Methods: In study 1, four males and two females between the ages of 8 and 17 years (median age = 14 years) participated in face-to-face interviews. A researcher administered the YEP-AAC and then asked youths to explain the rationale for their item ratings. Two researchers analyzed masked transcripts of the interviews to predict the valence of item ratings assigned by youths. In study 2, 18 families participated in a mailed survey to examine the reliability and validity of the scale domains. Seventeen mothers/one father and their children (9 male/9 female) between the ages of 10 and 20 years participated (median age = 16 years).Results: The level of chance-corrected agreement between valences converted from youth ratings on the YEP-AAC and those assigned by researchers was fair (weighted kappa = 0.38). Internal consistencies of the scale domains were acceptable. Youths who rated their AAC devices more favourably had higher functional communication as hypothesized.Conclusion: The two studies provide support for the face validity, internal consistency and convergent validity of the YEP-AAC as a measure of the product attitudes of youth with complex communication needs.Implications for rehabilitationDeveloping reliable ways to understand the product needs, preferences and values of youth with complex communication needs will help to support the selection, acquisition and use of augmentative and alternative communication (AAC) devices.Consumer socialization helps to explain how youth may acquire the skills, knowledge and experience relevant to their role as AAC consumers.Reliable youth-report questionnaires that are grounded in consumer socialization provide an expedient way to understand the product attitudes of young consumers with complex communication needs.