Developing the FEEDS toolkit of parent-delivered interventions for eating, drinking and swallowing difficulties in young children with neurodisability: findings from a Delphi survey and stakeholder consultation workshops.

BACKGROUND: Young children with neurodisability commonly experience eating, drinking and swallowing difficulties (EDSD). Little is documented about which interventions and outcomes are most appropriate for such children. We aimed to seek consensus between parents of children with neurodisability and health professionals on the appropriate interventions and outcomes to inform future clinical developments and research studies. METHODS: Two populations were sampled: parents of children aged up to 12 years with neurodisability who experienced EDSD; health professionals working with children and young people (aged 0-18 years) with neurodisability with experience of EDSD. Participants had taken part in a previous national survey and were invited to take part in a Delphi survey and/or consultation workshops. Two rounds of this Delphi survey sought agreement on the appropriate interventions and outcomes for use with children with neurodisability and EDSD. Two stakeholder consultation workshops were iterative, with the findings of the first discussed at the second, and conclusions reached. RESULTS: A total of 105 parents and 105 health professionals took part. Parents and health professionals viewed 19 interventions and 10 outcomes as essential. Interventions related to improvement in the physical aspects of a child's EDSD, behavioural changes of the child or parent, and changes in the child or family's well-being. Both parents and health professionals supported a 'toolkit' of interventions that they could use together in shared decision making to prioritise and implement timely interventions appropriate to the child. CONCLUSIONS: This study identified interventions viewed as essential to consider for improving EDSD in children with neurodisability. It also identified several key outcomes that are valued by parents and health professionals. The Focus on Early Eating, Drinking and Swallowing (FEEDS) Toolkit of interventions to improve EDSD in children with neurodisability has been developed and now requires evaluation regarding its use and effectiveness.

Eating and Drinking Ability Classification System ­ EDACS: equivalência cultural para o português brasileiro / Eating and Drinking Ability Classification System ­ EDACS: cross-cultural adaptation of the Brazilian Portuguese / Eating and Drinking Ability Classification System ­ EDACS: equivalencia cultural para el portugués brasileño

Objetivo: realizar a tradução e equivalência cultural e linguística para o Português Brasileiro do Eating and Drinking Ability Classification System (EDACS). Método: realizou-se a tradução do EDACS para a língua portuguesa por duas fonoaudiólogas bilíngues e especialistas em disfagia. As duas traduções foram comparadas entre as próprias fonoaudiólogas, sendo as incompatibilidades discutidas entre si e decisões tomadas por consenso. Após o instrumento traduzido, este foi enviado para uma terceira fonoaudióloga, brasileira, bilíngue, residente nos Estados Unidos, para que a retrotradução para o inglês fosse realizada. A versão inicial do instrumento e a retro tradução foram confrontadas entre si, sendo as discrepâncias analisadas, discutidas e definidas por consenso. Resultados: os processos de tradução e adaptação cultural requereram maior esforço na definição da nomenclatura das consistências utilizadas e não trouxeram modificações com relação à estrutura da escala original. Conclusão: realizou-se a equivalência cultural do Sistema de Classificação das Habilidades do Comer e Beber ­ EDACS-PT/BR para o português brasileiro.

Objective: to perform the translation and cultural equivalence to Brazilian Portuguese of the Eating and Drinking Ability Classification System (EDACS). Method: EDACS was translated into Brazilian Portuguese by two bilingual speech language therapists, specialists in dysphagia. The two translations were compared by the speech therapists, the incompatibilities were discussed among themselves and decisions were taken by consensus. After the instrument was translated, it was sent to a third Brazilian speech language therapist, bilingual and resident in the United States, for back-translation into English. The initial version of the instrument and the back-translation were compared and the discrepancies were analyzed, discussed and defined by consensus. Results: the processes of translation and cultural adaptation required more effort in defining the terms of the used consistencies and did not change the structure of the original scale. Conclusion: the cultural equivalence of the Sistema de Classificação das Habilidades do Comer e Beber ­ EDACS-PT/BR was performed for Brazilian Portuguese.

Objetivo: llevar a cabo la traducción y equivalencia cultural y lingüística al portugués brasileño del Eating and Drinking Ability Classification System (EDACS). Método: la EDACS fue traducida al portugués por dos logopedas bilingües y especialistas en disfagia. Las dos traducciones se compararon entre los propios logopedas, discutiéndose las incompatibilidades y tomando decisiones por consenso. Una vez traducido el instrumento, se envió a un tercer logopeda, brasileño, bilingüe, residente en Estados Unidos para la retrotraducción al inglés. La versión inicial del instrumento y la retrotraducción se compararon entre sí, y las discrepancias fueron analizadas, discutidas y definidas por consenso. Resultados: los procesos de traducción y adaptación cultural requirieron un mayor esfuerzo en la definición de la nomenclatura de las consistencias utilizadas y no trajeron cambios en relación a la estructura de la escala original. Conclusión: se realizó la equivalencia cultural del Sistema de Classificação das Habilidades do Comer e Beber ­ EDACS-PT/BR para el portugués brasileño.

Mini-EDACS: Development of the Eating and Drinking Ability Classification System for young children with cerebral palsy.

AIM: To develop and test Mini-EDACS to describe developing eating and drinking abilities of children with cerebral palsy (CP) aged between 18 and 36 months. METHOD: The existing Eating and Drinking Ability Classification System (EDACS) was modified to define Mini-EDACS content. Mini-EDACS was developed in three stages: (1) EDACS was modified after application to videos of standardized feeding evaluations of children with CP aged 18 to 36 months (n = 130); (2) refined content and validity of Mini-EDACS was established through an international Delphi survey; (3) interobserver reliability was assessed by comparing Mini-EDACS levels assigned by speech and language therapists (SaLTs) from video data and parent report. RESULTS: Mini-EDACS provides age-appropriate descriptions for children aged 18 to 36 months with CP. Eighty-nine stakeholders participated in the Delphi survey; required levels of agreement were met after one round (i.e. >80% agreement). Thirteen SaLTs completed paired ratings from 43 video recordings: absolute agreement was 58% (kappa 0.43; intraclass correlation coefficient 0.78; 95% confidence interval 0.63-0.87). INTERPRETATION: Mini-EDACS provides a valid system for classifying eating and drinking performance of children with CP under 3 years old. Results suggest moderate agreement and good reliability when rating Mini-EDACS levels from video recordings of young children with CP.

Reliability and validity of the Eating and Drinking Ability Classification System (EDACS) for children with cerebral palsy in Taiwan.

PURPOSE: The study was to assess the inter- and intra-rater reliability, construct validity and utility of the Eating and Drinking Ability Classification System (EDACS). METHODS: EDACS was translated into in Taiwan using an interactive process. Agreement between health professionals and teachers when using EDACS was assessed using Kappa and the Intraclass Correlation Co-efficient. RESULTS: Paired ratings of 4 (13%) health professionals (either speech or occupational therapists) and 26 (87%) teachers were obtained for 53 children with CP aged 6.7 years (SD 4.1 years), who worked in six education institutions. The raters used EDACS independently to classify children's eating and drinking ability and re-classified children's eating and drinking abilities after one month. Pairs of raters showed substantial agreement for the EDACS level at the first assessment (k = 0.75; absolute agreement = 81%; ICC = 0.94) and the second assessment (k = 0.70; absolute agreement = 77%; ICC = 0.95). The intra-rater reliability of EDACS level showed almost perfect agreement at rater 1 (k = 0.87; absolute agreement = 91%) and rater 2 (k = 0.87; absolute agreement = 91%). CONCLUSIONS: We conclude that the Chinese version of EDACS is valid and reliable to be easily used by health professionals and teachers to classify functional eating and drinking abilities in children with cerebral palsy.IMPLICATIONS FOR REHABILITATIONThe Chinese version of EDACS is valid and reliable to be easily used.EDACS can be used by health professionals and teachers to classify functional eating and drinking abilities in children with cerebral palsy.The EDACS is analogous to other functional classification systems (i.e., GMFCS, MACS and CFCS) and specifically represents eating and drinking ability.

Parent-delivered interventions used at home to improve eating, drinking and swallowing in children with neurodisability: the FEEDS mixed-methods study.

BACKGROUND: Eating, drinking and swallowing difficulties are common in young children with neurodisability. These difficulties may lead to inadequate calorie intake, which affects a child's nutrition, growth and general physical health. OBJECTIVE: To examine which interventions are available that can be delivered at home by parents to improve eating, drinking and swallowing in young children with neurodisability and are suitable for investigation in pragmatic trials. DESIGN: This was a mixed-methods study that included focus groups, surveys, an update of published systematic reviews of interventions, a systematic review of measurement properties of existing tools, evidence mapping, evidence synthesis, a Delphi survey and stakeholder workshops. SETTING: The study was carried out in NHS hospitals, community services, family homes and schools. PARTICIPANTS: Parents of children who had neurodisability and eating, drinking and swallowing difficulties. Professionals from health and education. Young people with eating, drinking and swallowing difficulties or young people who had previously experienced eating, drinking and swallowing difficulties. DATA SOURCES: Literature reviews; national surveys of parents and professionals; focus groups with parents, young people and professionals; and stakeholder consultation workshops. REVIEW METHODS: An update of published systematic reviews of interventions (searched July-August 2017), a mapping review (searched October 2017) and a systematic review of measurement properties using COnsensus-based Standards for the Selection of health status Measurement INstruments (COSMIN) methodology (searched May 2018). RESULTS: Significant limitations of the available research evidence regarding interventions and tools to measure outcomes were identified. A total of 947 people participated: 400 parents, 475 health professionals, 62 education professionals and 10 young people. The survey showed the wide range of interventions recommended by NHS health professionals, with parents and professionals reporting variability in the provision of these interventions. Parents and professionals considered 19 interventions as relevant because they modified eating, drinking and swallowing difficulties. Parents and professionals considered 10 outcomes as important to measure (including Nutrition, Growth and Health/safety); young people agreed that these were important outcomes. Stakeholder consultation workshops identified that project conclusions and recommendations made sense, were meaningful and were valued by parents and professionals. Parents and health professionals were positive about a proposed Focus on Early Eating, Drinking and Swallowing (FEEDS) toolkit of interventions that, through shared decision-making, could be recommended by health professionals and delivered by families. LIMITATIONS: The national surveys included large numbers of parents and professionals but, as expected, these were not representative of the UK population of parents of children with eating, drinking and swallowing difficulties. Owing to the limitations of research evidence, pragmatic decisions were made about interventions that might be included in future research and outcomes that might be measured. For instance, the reviews of research found only weak or poor evidence to support the effectiveness of interventions. The review of outcome measures found only limited low-level evidence about their psychometric properties. CONCLUSIONS: Opportunities and challenges for conducting clinical trials of the effectiveness of the FEEDS toolkit of interventions are described. Parents and professionals thought that implementation of the toolkit as part of usual NHS practice was appropriate. However, this would first require the toolkit to be operationalised through development as a complex intervention, taking account of constituent interventions, delivery strategies, implementation and manualisation. Subsequently, an evaluation of its clinical effectiveness and cost-effectiveness could be undertaken using appropriate research methods. FUTURE WORK: Initial steps include FEEDS toolkit development and evaluation of its use in clinical practice, and identification of the most robust methods to measure valued outcomes, such as Nutrition and Growth. TRIAL REGISTRATION: Current Controlled Trials ISRCTN10454425. FUNDING: This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 25, No. 22. See the NIHR Journals Library website for further project information.

Some young children with disabilities, such as those with cerebral palsy and autism spectrum disorder, have difficulties with eating, drinking and swallowing. Many strategies are employed to help with these difficulties (e.g. 'Positioning'), but we need to know more about which ones work best. We wanted to find out about the strategies parents use at home to help their children with eating, drinking and swallowing difficulties. We wanted to understand what is already known about the strategies that are available now and if children are getting the right help. We wanted to find out if doing more research would tell us which interventions work. We looked at what has been written about the ways in which parents help their child to eat, drink and swallow. We discussed this information with parents and health professionals. We developed a survey to ask what parent-delivered strategies are recommended by NHS professionals, which strategies parents use and how we would know if things had improved. We discussed the findings with parents and professionals. We then used a different type of survey. Parents and professionals were asked which strategies were most important and what they would most like to improve. We then held workshops to hear parents' and professionals' views on what we had found and to agree on how we would organise future research. We discussed some of the findings with young people. Research about these strategies and how to measure improvements in eating and drinking is of poor quality. A wide variety of strategies are used: 19 strategies were thought to be the most useful by parents and professionals. Parents and professionals agreed on 10 areas that they would most like to improve. Both groups thought that it was a good idea to have a 'toolkit' of strategies so that they could choose the right strategy at the right time.

Punching above its weight: life cycle energy accounting and environmental assessment of vanadium microalloying in reinforcement bar steel.

Steel-reinforced concrete is ubiquitously used in construction across the world. The United Nations estimates that the worldwide energy consumption of buildings accounts for 30-40% of global energy production, underlining the importance of the judicious selection of construction materials. Much effort has focused on the use of high-strength low-alloy steels in reinforcement bars whose economy of materials use is predicated upon improved yield strengths in comparison to low-carbon steels. While microalloying is known to allow for reduced steel consumption, a sustainability analysis in terms of embodied energy and CO2 has not thus far been performed. Here we calculate the impact of supplanting lower grade reinforcement bars with higher strength vanadium microalloyed steels on embodied energy and carbon footprint. We find that the increased strength of vanadium microalloyed steel translates into substantial material savings over mild steel, thereby reducing the total global fossil carbon footprint by as much as 0.385%. A more granular analysis pegs savings for China and the European Union at 1.01 and 0.19%, respectively, of their respective emissions. Our cradle-to-gate analysis provides an accounting of the role of microalloying in reducing the carbon footprint of the steel and construction industries and highlights the underappreciated role of alloying elements.

Atomic Hourglass and Thermometer Based on Diffusion of a Mobile Dopant in VO2.

Transformations between different atomic configurations of a material oftentimes bring about dramatic changes in functional properties as a result of the simultaneous alteration of both atomistic and electronic structure. Transformation barriers between polytypes can be tuned through compositional modification, generally in an immutable manner. Continuous, stimulus-driven modulation of phase stabilities remains a significant challenge. Utilizing the metal-insulator transition of VO2, we exemplify that mobile dopants weakly coupled to the crystal lattice provide a means of imbuing a reversible and dynamical modulation of the phase transformation. Remarkably, we observe a time- and temperature-dependent evolution of the relative phase stabilities of the M1 and R phases of VO2 in an "hourglass" fashion through the relaxation of interstitial boron species, corresponding to a 50 °C modulation of the transition temperature achieved within the same compound. The material functions as both a chronometer and a thermometer and is "reset" by the phase transition. Materials possessing memory of thermal history hold promise for applications such as neuromorphic computing, atomic clocks, thermometry, and sensing.

Adolescents' experiences of communication following acquired brain injury.

BACKGROUND: Paediatric acquired brain injury (ABI) is one of the leading causes of neurodisability in childhood. The long-term effects of ABI on cognition, behaviour and emotions are well documented. Previous research has found that communication is difficult for adolescents with ABI compared with typically developing peers. Quantitative studies have identified deficits in specific domains of speech and language, but no research studies have sought to capture adolescents' lived experiences of communication or explored the multidimensional nature of this. AIMS: To explore adolescents' everyday experiences of communication following ABI. This research also offered adolescents an opportunity to give their views on an issue that has not previously been explored in relation to paediatric ABI. METHOD & PROCEDURES: A qualitative study was undertaken using interpretative phenomenological analysis (IPA) for in-depth exploration of the lived experiences of communication following ABI. Participants were recruited from an NHS Trust in England. Six adolescents (aged 11-18 years) participated in semi-structured interviews. Data analysis followed the guides for IPA. OUTCOMES & RESULTS: The data revealed three main themes: the social world; communication competence; and life in the classroom. Adolescents experienced communication changes and challenges, which affected functioning and participation. Difficulties with communication affected identity, learning, relationships and confidence. CONCLUSIONS & IMPLICATIONS: These findings provide an insight into how communication is experienced in everyday life from the perspectives of adolescents with ABI. The study revealed that adolescents' individual experiences of communication were dependent on contextual factors. Sensitivity to communication changes was associated with the age when the ABI occurred. Difficulties with communication impacted on identity. Negative communication experiences at school affected a sense of belonging; peer group support helped some adolescents to cope with the communication challenges they faced. Further research is needed to explore how participation in communication is affected by paediatric ABI and what could be done to support this. It is recommended that increased attention should be paid by professionals to the psychological impact of communication changes and difficulties experienced by this population.

The Eating and Drinking Ability Classification System for cerebral palsy: A study of reliability and stability over time.

AIM: This study evaluated the inter-observer reliability and stability over time of the Eating and Drinking Ability Classification System (EDACS) for children and young people with cerebral palsy (CP). METHOD: Case records for 97 children with CP were examined to collect retrospective data about eating and drinking abilities at four time-points with a minimum of 2 years between each time-point. Sex, Gross Motor Function Classification System (GMFCS) level, presence of feeding tube and orthopaedic issues were recorded from case records. One speech and language therapist (SaLT1) classified eating and drinking ability using EDACS for all cases at all time-points; SaLT2 assigned EDACS levels for 50 cases at time-point 1; SaLT3 assigned EDACS levels for 24 cases at all time-points. Inter-observer reliability and stability over time were assessed using the Intraclass Correlation Coefficient (ICC). Associations between EDACS levels and functioning recorded with other Functional Classification Systems (FCSs) were calculated using Kendall's tau (τ). RESULTS: Out of 97 children, 48 were male, 48 had feeding tubes, and 83 had orthopaedic issues. ICC for EDACS levels recorded by SaLT1 across all time-points was 0.97 (95% CI 0.96-0.98); changes in EDACS levels occurred infrequently and never by more than one level. ICC between SaLT1 and SaLT2 at time-point 1 was 0.8 (95% CI 0.67-0.89); ICC between SaLT1 and SaLT3 across all time-points was 0.95 (95% CI 0.92-0.98). Association between GMFCS and EDACS was moderate (τ= 0.58). INTERPRETATION: Retrospective use of EDACS to classify children's eating and drinking abilities appears reliable; EDACS appeared stable over 6 or more years in 86% of the cases.

Reliability, construct validity and usability of the Eating and Drinking Ability Classification System (EDACS) among Dutch children with Cerebral Palsy.

PURPOSE: To assess the interrater reliability, construct validity and usability of the Eating and Drinking Ability Classification System (EDACS) among Dutch children with Cerebral Palsy (CP) when used by speech and language therapists (SLTs) familiar and unfamiliar with the child's eating and drinking performance and parents. METHODS: Translation was undertaken using the method of Eremenco. Agreement between SLTs and parents when using EDACS was determined by intraclass correlation coefficient (ICC) and linear weighted Kappa (κW). Associations with other functional classification systems including the Dysphagia Management Staging Scale (DMSS) were investigated to determine construct validity by Kendall's tau-b. RESULTS: Thirty-one SLTs classified 149 children (67 girls; mean 10 y, SD 4 y, range 3-21 y) with EDACS. Pairs of SLTs showed good agreement ([ICC] = 0.84; 95% confidence interval [CI] 0.79-0.88; [κW] = 0.71). Eighty-one parents showed good agreement with SLTs (n= 31) as well (ICC = 0.80; 95% CI 0.71-0.87; κW= 0.61). There was a significant and strong positive correlation of EDACS with DMSS (Kendall's tau-b 0.81) supporting its construct validity. Usability of EDACS was generally good. CONCLUSION: The Dutch version of EDACS is reliable and valid, and can be used easily by (familiar and unfamiliar) SLTs and parents of children with CP. Parents and professionals showed a high level of consistency when classifying eating and drinking abilities. EDACS enables uniform and efficient communication about safety and efficiency of functional eating and drinking ability in clinical and research contexts.

The Eating and Drinking Ability Classification System: concurrent validity and reliability in children with cerebral palsy.

AIM: As there is little evidence for concurrent validity of the Eating and Drinking Ability Classification System (EDACS), this study aimed to determine its concurrent validity and reliability in children and adolescents with cerebral palsy (CP). METHOD: After an extensive translation procedure, we applied the German language version to 52 participants with CP (30 males, 22 females, mean age 9y 7mo [SD 4y 2mo]). We correlated (Kendall's tau or Kτ ) the EDACS levels with the Bogenhausener Dysphagiescore (BODS), and the EDACS level of assistance with the Manual Ability Classification System (MACS) and the item 'eating' of the Functional Independence Measure for Children (WeeFIM). We further quantified the interrater reliability between speech and language therapists (SaLTs) and between SaLTs and parents with Kappa (κ). RESULTS: The EDACS levels correlated highly with the BODS (Kτ =0.79), and the EDACS level of assistance correlated highly with the MACS (Kτ =0.73) and WeeFIM eating item (Kτ =-0.80). Interrater reliability proved almost perfect between SaLTs (EDACS: κ=0.94; EDACS level of assistance: κ=0.89) and SaLTs and parents (EDACS: κ=0.82; EDACS level of assistance: κ=0.89). INTERPRETATION: The EDACS levels and level of assistance seem valid and showed almost perfect interrater reliability when classifying eating and drinking problems in children and adolescents with CP. WHAT THIS PAPER ADDS: The Eating and Drinking Ability Classification System (EDACS) correlates well with a dysphagia score. The EDACS level of assistance proves valid. The German version of EDACS is highly reliable. EDACS correlates moderately to highly with other classification systems.

Elucidating the Crystallite Size Dependence of the Thermochromic Properties of Nanocomposite VO2 Thin Films.

Fenestration elements that enable spectrally selective dynamic modulation of the near-infrared region of the electromagnetic spectrum are of great interest as a means of decreasing the energy consumption of buildings by adjusting solar heat gain in response to external temperature. The binary vanadium oxide VO2 exhibits a near-room-temperature insulator-metal electronic transition accompanied by a dramatic modulation of the near-infrared transmittance. The low-temperature insulating phase is infrared transparent but blocks infrared transmission upon metallization. There is considerable interest in harnessing the thermochromic modulation afforded by VO2 in nanocomposite thin films. However, to prepare a viable thermochromic film, the visible-light transmittance must be maintained as high as possible while maximizing thermochromic modulation in the near-infrared region of the electromagnetic spectrum, which necessitates the development of high-crystalline-quality VO2 nanocrystals of the optimal particle size embedded within the appropriate host matrix and refractive index matched to the host medium. Here, we demonstrate the preparation of acrylate-based nanocomposite thin films with varying sizes of embedded VO2 nanoparticles. The observed strong size dependence of visible-light transmittance and near-infrared modulation is explicable on the basis of optical simulations. In this article, we elucidate multiple scattering and absorption mechanisms, including Mie scattering, temperature-/phase-variant refractive-index mismatch between VO2 nanocrystals and the encapsulating matrix, and the appearance of a surface plasmon resonance using temperature-variant absorptance and diffuse transmittance spectroscopy measurements performed as a function of particle loading for the different sizes of VO2 nanocrystals. Nanocrystals with dimensions of 44 ± 30 nm show up to >32% near-infrared energy modulation across the near-infrared region of the electromagnetic spectrum while maintaining high visible-light transmission. The results presented here, providing mechanistic elucidation of the size dependence of the different scattering mechanisms, underscore the importance of nanocrystallite dimensions, refractive-index matching, and individualized dispersion of particles within the host matrix for the preparation of viable thermochromic thin films mitigating Mie scattering and differential refractive-index scattering.

Hybrid Nanocomposite Films Comprising Dispersed VO2 Nanocrystals: A Scalable Aqueous-Phase Route to Thermochromic Fenestration.

Buildings consume an inordinate amount of energy, accounting for 30-40% of worldwide energy consumption. A major portion of solar radiation is transmitted directly to building interiors through windows, skylights, and glazed doors where the resulting solar heat gain necessitates increased use of air conditioning. Current technologies aimed at addressing this problem suffer from major drawbacks, including a reduction in the transmission of visible light, thereby resulting in increased use of artificial lighting. Since currently used coatings are temperature-invariant in terms of their solar heat gain modulation, they are unable to offset cold-weather heating costs that would otherwise have resulted from solar heat gain. There is considerable interest in the development of plastic fenestration elements that can dynamically modulate solar heat gain based on the external climate and are retrofittable onto existing structures. The metal-insulator transition of VO2 is accompanied by a pronounced modulation of near-infrared transmittance as a function of temperature and can potentially be harnessed for this purpose. Here, we demonstrate that a nanocomposite thin film embedded with well dispersed sub-100-nm diameter VO2 nanocrystals exhibits a combination of high visible light transmittance, effective near-infrared suppression, and onset of NIR modulation at wavelengths <800 nm. In our approach, hydrothermally grown VO2 nanocrystals with <100 nm diameters are dispersed within a methacrylic acid/ethyl acrylate copolymer after either (i) grafting of silanes to constitute an amorphous SiO2 shell or (ii) surface functionalization with perfluorinated silanes and the use of a perfluorooctanesulfonate surfactant. Homogeneous and high optical quality thin films are cast from aqueous dispersions of the pH-sensitive nanocomposites onto glass. An entirely aqueous-phase process for preparation of nanocrystals and their effective dispersion within polymeric nanocomposites allows for realization of scalable and viable plastic fenestration elements.

Development and reliability of a system to classify the eating and drinking ability of people with cerebral palsy.

AIM: The aim of this study was to develop a valid classification system to describe eating and drinking ability in people with cerebral palsy (CP), and to test its reliability. METHOD: The Eating and Drinking Ability Classification System (EDACS) was developed in four stages in consultation with individuals with CP, parents, and health professionals: Stage 1, drafting informed by literature and clinical experience; Stage 2, modification by nominal groups; Stage 3, refinement in an international Delphi survey; and Stage 4, testing of agreement and reliability between classifications made by speech and language therapists (SaLTs), and between SaLTs and parents. RESULTS: Seven nominal groups involved 56 participants; 95 people participated in two rounds of the Delphi survey. Using the version of EDACS produced from this process, SaLTs in pairs classified 100 children. The rate of absolute agreement was 78% (kappa=0.72; intraclass correlation coefficient [ICC]=0.93; 95% confidence interval [CI] 0.90-0.95). Any disagreement was only by one level, with one exception. SaLTs and parents classified 48 children. The rate of absolute agreement was 58% (kappa=0.45, ICC=0.86; 95% CI 0.76-0.92). Parents either agreed with SaLTs or rated their children as more able by one level. INTERPRETATION: The EDACS provides a valid and reliable system for classifying eating and drinking performance of people with CP, for use in both clinical and research contexts.

A systematic review of ordinal scales used to classify the eating and drinking abilities of individuals with cerebral palsy.

AIM: The aim of this review was to examine systematically the scope, validity, and reliability of ordinal scales used to classify the eating and drinking ability of people with cerebral palsy (CP). METHOD: Six electronic databases were searched to identify measures used to classify eating and drinking ability; in addition, two databases were used to track citations of key texts. The constructs assessed by each measure were examined in relation to the World Health Organization International Classification of Functioning, Disability and Health. Evidence of validity and reliability of the identified scales was appraised from peer-reviewed studies using standard criteria. RESULTS: Fifteen scales were identified in 23 papers. Clinician or researcher assessment was required for 13 scales; nine scales made use of information from parents and carers through interviews or questionnaires. Eight scales used the terms mild, moderate, and severe (with varying definitions) to describe different aspects of eating and drinking impairment. There was an assessment of either content validity and/or reliability for five scales; however, none met the recommended psychometric quality standards. INTERPRETATION: Currently, there is a lack of evidence of the validity and reliability of ordinal scales of functional eating and drinking abilities of people with CP.