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1.
Lang Speech Hear Serv Sch ; : 1-17, 2024 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-39028568

RESUMEN

PURPOSE: Understanding the experiences of families of children with developmental language disorder (DLD) during COVID-19 educational disruptions is essential for designing responsive supports during pandemic recovery efforts and beyond. This qualitative study describes the experiences of families of first- and second-grade children with DLD during the pandemic as compared to the experiences of families of typically developing (TD) peers. METHOD: A conventional content analysis approach was used to analyze caregivers' written responses to open-ended questions regarding their perceptions of COVID-19 educational disruptions. Responses were analyzed separately by group: caregivers of children with DLD (n = 23) and caregivers of TD children (n = 22). RESULTS: Four categories of caregiver responses were generated for each group: impacts on children, remote learning challenges, impacts on caregivers, and protective factors. For both groups, concerns about the child's well-being and literacy learning were most prevalent and prevailed over concerns about oral language. Most caregivers in each group described negative impacts of educational disruptions on their cdhildren. As compared to caregivers of TD children, caregivers of children with DLD reported higher rates of remote learning challenges and more negative impacts on literacy learning, speech and/or language, and education in general. DLD caregivers also shared fewer positive comments and remarks related to protective factors. CONCLUSIONS: Results indicate that families of children with DLD may have experienced more challenges during COVID-19 educational disruptions as compared to families of TD peers. Thus, responsive research and supports for these families is essential.

2.
Am J Speech Lang Pathol ; 33(3): 1548-1571, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38324341

RESUMEN

PURPOSE: This review aims to comprehensively summarize, compare, and evaluate screeners used to identify risk for developmental language disorder (DLD), a common learning disability that is underidentified. Screening for DLD is a cost-effective way to identify children in need of further assessment and, in turn, provides much needed supports. METHOD: We identified 15 commercially available English language DLD screeners in North America. We then characterized each screener on 27 aspects in three domains, including (a) accessibility information (acronym, subtest, website, cost, materials included, publish year, examiner qualification, age range, administration time, and administration format), (b) usability features (dialect compatibility, progress monitoring function, actionable follow-up instruction, group assessment capability, and online administration availability), and (c) technical standards (the availability of a technical manual, conceptual definition, the sample size used in classification accuracy calculation, sample distribution, year of sample collection, outcome measure, sample base rate, cutoff score, sensitivity, specificity, positive predictive value, and negative predictive value). RESULTS: We obtained sufficient accessibility information from 14 out of 15 (93%) screeners. In contrast, none of the screeners (0%) included comprehensive usability features. Ten screeners (67%) included a range of classification accuracy (70%-100% sensitivity and 68%-90% specificity). We provided areas of strength and weakness for each screener as a quick reference for users and generated screener recommendations for five practical scenarios. CONCLUSIONS: Our findings presented some DLD screeners that meet most standards and highlight numerous areas for improvement, including improving classification accuracy and clarifying follow-up instructions for children who are identified with DLD risk. Screening for DLD is critical to provide timely early identification, intervention, and classroom support, which in turn facilitates student outcomes.


Asunto(s)
Trastornos del Desarrollo del Lenguaje , Pruebas del Lenguaje , Niño , Preescolar , Humanos , Lenguaje Infantil , Trastornos del Desarrollo del Lenguaje/diagnóstico , Trastornos del Desarrollo del Lenguaje/clasificación , Tamizaje Masivo/métodos , Valor Predictivo de las Pruebas , Reproducibilidad de los Resultados , Medición de Riesgo/métodos , Factores de Riesgo
3.
Lang Speech Hear Serv Sch ; 54(4): 1035-1037, 2023 10 02.
Artículo en Inglés | MEDLINE | ID: mdl-37747324

RESUMEN

PURPOSE: This purpose of this prologue is to introduce readers to the Language, Speech, and Hearing Services in Schools Forum: Minding the Gap: Using Implementation Science to Improve Clinical Practice in Schools. Ten articles comprise this forum presenting a variety of topics, such as the use of implementation science frameworks and methods, program adaptation, de-implementation, and interprofessional collaboration. CONCLUSION: As showcased in this forum, implementation science offers many ways to bridge the gap between research and practice and improve school-based services for children with communication disorders.


Asunto(s)
Trastornos de la Comunicación , Ciencia de la Implementación , Niño , Humanos , Instituciones Académicas , Lenguaje , Habla
4.
J Speech Lang Hear Res ; 66(8): 2766-2782, 2023 08 03.
Artículo en Inglés | MEDLINE | ID: mdl-37473736

RESUMEN

PURPOSE: Learning to read is a complex, multifaceted process that relies on several speech and language-related subskills. Individual differences in word reading outcomes are indicated among children with inaccurate speech sound productions, with some of these children developing later reading difficulties. There are inconsistent reports as to whether phonological deficits and/or weaknesses in oral language explain these subsequent reading difficulties. Thus, it remains unclear how variability in speech production accuracy in early childhood may impact reading development. Therefore, the present longitudinal study seeks to clarify the relation between speech sound production accuracy in kindergarten and subsequent reading outcomes with a focus on additional potential mediating factors. METHOD: Speech accuracy, core preliteracy skills (phonological awareness, rapid naming, and letter-name knowledge), and additional potential mediators (phonological memory and oral language abilities) were characterized at the start of formal reading instruction. Word reading, decoding, reading fluency, and comprehension were assessed at the end of second grade. Mediation analyses were conducted to examine factors that mediate the relation between speech accuracy in kindergarten and subsequent reading outcomes. RESULTS: Initial associations between early speech sound production accuracy and subsequent reading outcomes were indicated; however, mediation effects of preliteracy skills (phonological awareness and letter-name knowledge) were identified for word reading, decoding, and reading fluency outcomes. For reading comprehension, mediation effects of preliteracy and vocabulary skills were observed. CONCLUSIONS: The relation between speech sound production accuracy and subsequent word reading, decoding, reading fluency, and comprehension was observed to be mediated by preliteracy skills, specifically phonological awareness and letter-name knowledge. For reading comprehension only, vocabulary knowledge were of additional importance. SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.23671491.


Asunto(s)
Dislexia , Fonética , Niño , Preescolar , Humanos , Lectura , Estudios Longitudinales , Habla , Vocabulario
5.
Lang Speech Hear Serv Sch ; 54(4): 1165-1172, 2023 10 02.
Artículo en Inglés | MEDLINE | ID: mdl-37433304

RESUMEN

PURPOSE: One of our biggest challenges is integrating evidence-based research into practice to serve students with communication disorders. To encourage the systematic application of research findings into practice, implementation science offers frameworks and tools, many of which have a narrow scope. It is important to have comprehensive frameworks that encompass all essential implementation concepts to support implementation in schools. METHOD: Guided by the generic implementation framework (GIF; Moullin et al., 2015), we reviewed implementation science literature to identify and tailor frameworks and tools covering all core concepts of implementation: (a) the process of implementation, (b) the domains and determinants of practice, (c) implementation strategies, and (d) evaluations. RESULTS: We created a version of the GIF for school settings, called the GIF-School, to bring together frameworks and tools that sufficiently cover core concepts of implementation. The GIF-School is accompanied by an open access toolkit, which lists selected frameworks, tools, and useful resources. CONCLUSION: Researchers and practitioners, in speech-language pathology and education more broadly, who seek to apply implementation science frameworks and tools to improve school services for students with communication disorders may turn to the GIF-School as a resource. SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.23605269.


Asunto(s)
Instituciones Académicas , Estudiantes , Humanos , Escolaridad
6.
J Speech Lang Hear Res ; 66(2): 656-667, 2023 02 13.
Artículo en Inglés | MEDLINE | ID: mdl-36706457

RESUMEN

PURPOSE: Developmental language disorder (DLD) is a lifelong condition that when impacting educational performance is identified and serviced through U.S. schools as outlined in the Individuals with Disabilities Education Act. A few examples of educational categories that refer to DLD are (a) speech or language impairment (S/LI) and (b) specific learning disability (SLD). In this research note, we aim to examine trends in how these categories are assigned. METHOD: We analyzed publicly available data released by the U.S. Department of Education from six school years between 2010 and 2020. We examined the use of S/LI and SLD categories across students of different ages at the U.S. national and state levels. RESULTS: We present a trend in which younger students tend to be identified with the S/LI category, whereas older students tend to be identified with the SLD category. This trend is evident in all 6 years of data analyzed at the national level, and in 49 of 50 states. CONCLUSIONS: We discuss these findings in the context of research on language disorders to explain this trend. We highlight the potential damaging effects of using inconsistent terminology, including affecting the services for which students with DLD qualify and causing confusion for their parents and educators.


Asunto(s)
Trastornos de la Comunicación , Trastornos del Desarrollo del Lenguaje , Discapacidades para el Aprendizaje , Humanos , Habla , Escolaridad
7.
J Res Read ; 45(3): 277-298, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36250042

RESUMEN

Developmental language disorder (DLD) and dyslexia are common but under-identified conditions that affect children's ability to read and comprehend text. Universal screening is a promising solution for improving under-identification of DLD and dyslexia, however, we lack evidence for how to effectively implement and sustain screening procedures in schools. In the current study, we solicited input from educators in the U.S. around perceived barriers and facilitators to the implementation of researcher-developed screeners for DLD and dyslexia. Using thematic analysis, we identified barriers and facilitators within five domains: (1) features of the screeners, (2) preparation for screening procedures, (3) administration of the screeners, (4) demands on users, and (5) screening results. We discuss these findings and ways we can continue improving our efforts to maximize the contextual fit and utility of screening practices in schools.

8.
J Child Lang ; : 1-35, 2022 Oct 19.
Artículo en Inglés | MEDLINE | ID: mdl-36259454

RESUMEN

PURPOSE: Little is known about the relationship between sentence production and phonological working memory in school-age children. To fill this gap, we examined how strongly these constructs correlate. We also compared diagnostic groups' working memory abilities to see if differences co-occurred with qualitative differences in their sentences. METHOD: We conducted Bayesian analyses on data from seven- to nine-year-old children (n = 165 typical language, n = 81 dyslexia-only, n = 43 comorbid dyslexia and developmental language disorder). We correlated sentence production and working memory scores and conducted t tests between groups' working memory scores and sentence length, lexical diversity, and complexity. RESULTS: Correlations were positive but weak. The dyslexic and typical groups had dissimilar working memory and comparable sentence quality. The dyslexic and comorbid groups had comparable working memory but dissimilar sentence quality. CONCLUSION: Contrary to literature-based predictions, phonological working memory and sentence production are weakly related in school-age children.

9.
Am J Speech Lang Pathol ; 31(3): 1-13, 2022 05 10.
Artículo en Inglés | MEDLINE | ID: mdl-35239411

RESUMEN

PURPOSE: To describe the 9-year journey of a group of language and literacy researchers in establishing and cultivating Research-Practice Partnerships (RPPs). Those interested in incorporating implementation science frameworks in their research may benefit from reading our exploration into this type of work and our lessons learned. METHOD: We showcase how a group of researchers, who are committed to collaboration with school practitioners, navigated building and scaling RPPs within educational systems necessary for our long-term implementation work. We provide details and illustrative examples for three, distinct, mutually beneficial, and sustainable partnerships. RESULTS: Three different practice organizations are represented: (1) a single metropolitan school, (2) a small metropolitan school district, and (3) a large metropolitan school district, highlighting specific priorities and needs depending on the type of practice organization. Each partnership has distinct research and practice goals related to improving language and literacy outcomes in children. We describe how the researchers assisted with meeting the partner practice organizations' goals and engaged in capacity building while producing rigorous scientific knowledge to inform clinical and educational practice. Additionally, we discuss how research priorities and strategies were pivoted in the past year due to the COVID-19 pandemic, illustrating our commitment to the partnerships and how to respond to challenges to guarantee long-term sustainability. CONCLUSION: By discussing three distinctive partnerships, we demonstrate the various ways researchers can approach RPPs and grow them into mutually beneficial collaborations and support implementation goals.


Asunto(s)
COVID-19 , Pandemias , Niño , Humanos , Instituciones Académicas
10.
J Speech Lang Hear Res ; 65(3): 1044-1069, 2022 03 08.
Artículo en Inglés | MEDLINE | ID: mdl-35148490

RESUMEN

PURPOSE: The purpose of this study was to use an established model of working memory in children to predict an established model of word learning to determine whether working memory explained word learning variance over and above the contributions of expressive vocabulary and nonverbal IQ. METHOD: One hundred sixty-seven English-speaking second graders (7- to 8-year-olds) with typical development from two states participated. They completed a comprehensive battery of working memory assessments and six word learning tasks that assessed the creation, storage, retrieval, and production of phonological and semantic representations of novel nouns and verbs and the ability to link those representations. RESULTS: A structural equation model with expressive vocabulary, nonverbal IQ, and three working memory factors predicting two word learning factors fit the data well. When working memory factors were entered as predictors after expressive vocabulary and nonverbal IQ, they explained 45% of the variance in the phonological word learning factor and 17% of the variance in the semantic word learning factor. Thus, working memory explained a significant amount of word learning variance over and above expressive vocabulary and nonverbal IQ. CONCLUSION: Results show that working memory is a significant predictor of dynamic word learning over and above the contributions of expressive vocabulary and nonverbal IQ, suggesting that a comprehensive working memory assessment has the potential to identify sources of word learning difficulties and to tailor word learning interventions to a child's working memory strengths and weaknesses. SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.19125911.


Asunto(s)
Memoria a Corto Plazo , Vocabulario , Niño , Humanos , Fonética , Semántica , Aprendizaje Verbal
11.
Lang Speech Hear Serv Sch ; 53(2): 317-328, 2022 04 11.
Artículo en Inglés | MEDLINE | ID: mdl-35077661

RESUMEN

PURPOSE: Speech-language pathologists (SLPs) and researchers face difficulties in moving evidence-based practices from clinical research into widespread practice, in part due to a mismatch between the design of typical intervention research studies and the realities of clinical settings. SLPs must adapt interventions from the literature or established programs to fit the needs of specific clients and settings. Researchers must design studies that better reflect clinical practice. METHOD: Here, we provide an overview of the Minimal Intervention Needed for Change (MINC) approach, a systematic approach to developing and adapting interventions that focuses on achieving meaningful outcomes within specific contexts. We outline the principles of MINC and illustrate this process through the use of a case study. RESULTS: MINC can support systematic development and adaptation of interventions in clinical and research settings, particularly settings with resource limitations. CONCLUSIONS: Researchers should work to align research intervention work with typical clinical settings. This involves both targeting outcomes that are functional and clinically significant and acknowledging resource limitations. SLPs should adapt evidence-based interventions systematically and carefully to meet the needs of clients and settings while retaining the core components of intervention that result in meaningful change for clients.


Asunto(s)
Trastornos de la Comunicación , Patología del Habla y Lenguaje , Práctica Clínica Basada en la Evidencia , Humanos , Patólogos , Habla
12.
Dyslexia ; 28(1): 20-39, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34569679

RESUMEN

The primary purpose of this study was to compare the working memory performance of monolingual English-speaking second- grade children with dyslexia (N = 82) to second-grade children with typical development (N = 167). Prior to making group comparisons, it is important to demonstrate invariance between working memory models in both groups or between-group comparisons would not be valid. Thus, we completed invariance testing using a model of working memory that had been validated for children with typical development (Gray et al., 2017) to see if it was valid for children with dyslexia. We tested three types of invariance: configural (does the model test the same constructs?), metric (are the factor loadings equivalent?), and scalar (are the item intercepts the same?). Group comparisons favoured the children with typical development across all three working memory factors. However, differences in the Focus-of-Attention/Visuospatial factor could be explained by group differences in non-verbal intelligence and language skills. In contrast, differences in the Phonological and Central Executive working memory factors remained, even after accounting for non-verbal intelligence and language. Results highlight the need for researchers and educators to attend not only to the phonological aspects of working memory in children with dyslexia, but also to central executive function.


Asunto(s)
Dislexia , Memoria a Corto Plazo , Atención , Niño , Función Ejecutiva , Humanos , Lingüística
13.
Int J Lang Commun Disord ; 56(6): 1218-1234, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34415090

RESUMEN

BACKGROUND: Nonword repetition (NWR) is a common phonological processing task that is reported to tap into many cognitive, perceptual, and motor processes. For this reason, NWR is often used in assessment batteries to aid in verifying the presence of a reading or language disorder. AIMS: To examine the extent to which child- and item-level factors predict the probability of a correct response on a non-word repetition (NWR) task in a sample of children with persistent speech sound disorders (P-SSDs) compared with their typically developing peers. METHODS & PROCEDURES: A total of 40 American-English-speaking children were tested on an NWR task for which the stimuli were manipulated for phonological neighbourhood density and list length. Additional measures of vocabulary and word reading were also administered. OUTCOMES & RESULTS: Children who were typically developing were 1.82 times more likely than children with P-SSD to respond correctly. The item-level factor of phonological neighbourhood density influenced performance, but only for the P-SSD group, and only at certain list lengths. Vocabulary and word-reading ability also influenced NWR task performance. CONCLUSIONS & IMPLICATIONS: Children with P-SSD present as a complex and heterogeneous group. Multiple factors contribute to their ability to perform phonological tasks such as NWR. As such, attention to the item-level factors in screenings and assessments is necessary to ensure that appropriate decisions are made regarding diagnosis and subsequent treatment. WHAT THIS PAPER ADDS: What is already known on the subject? Good expressive vocabulary is important for children with speech sound disorders; it can aid in their performance on phonological processing tasks like NWR. Nonword repetition may be a helpful test/ subtest to add to assessment batteries when evaluating children with speech sound disorders. What this paper adds to existing knowledge? Vocabulary and word reading abilities must also be measured for children with SSDs, to observe the bigger picture of their linguistic abilities. What are the potential or actual clinical implications of this work? The relation between word reading and speech sound production influences performance on phonological processing tasks.


Asunto(s)
Trastorno Fonológico , Niño , Lenguaje Infantil , Humanos , Pruebas del Lenguaje , Fonética , Habla , Trastorno Fonológico/diagnóstico , Vocabulario
14.
Int J Biling Educ Biling ; 24(5): 736-756, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33986624

RESUMEN

This study examined accuracy on syllable-final (coda) consonants in newly-learned English-like nonwords to determine whether school-aged bilingual children may be more vulnerable to making errors on English-only codas than their monolingual, English-speaking peers, even at a stage in development when phonological accuracy in productions of familiar words is high. Bilingual Spanish-English-speaking second- graders (age 7-9) with typical development (n=40) were matched individually with monolingual peers on age, sex, and speech skills. Participants learned to name sea monsters as part of five computerized word learning tasks. Dependent t-tests revealed bilingual children were less accurate than monolingual children in producing codas unique to English; however, the groups demonstrated equivalent levels of accuracy on codas that occur in both Spanish and English. Results suggest that, even at high levels of English proficiency, bilingual Spanish-English-speaking children may demonstrate lower accuracy than their monolingual English-speaking peers on targets that pattern differently in their two languages. Differences between a bilingual's two languages can be used to reveal targets that may be more vulnerable to error, which could be a result of cross-linguistic effects or more limited practice with English phonology.

15.
Dev Sci ; 24(1): e12983, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32356911

RESUMEN

Recent efforts have focused on screening methods to identify children at risk for dyslexia as early as preschool/kindergarten. Unfortunately, while low sensitivity leads to under-identification of at-risk children, low specificity can lead to over-identification, resulting in inaccurate allocation of limited educational resources. The present study focused on children identified as at-risk in kindergarten who do not subsequently develop poor reading skills to specify factors associated with better reading outcomes among at-risk children. Early screening was conducted in kindergarten and a subset of children was tracked longitudinally until second grade. Potential protective factors were evaluated at cognitive-linguistic, environmental, and neural levels. Relative to at-risk kindergarteners with subsequent poor reading, those with typical reading outcomes were characterized by significantly higher socioeconomic status (SES), speech production accuracy, and structural organization of the posterior right-hemispheric superior longitudinal fasciculus (SLF). A positive association between structural organization of the right SLF and subsequent decoding skills was found to be specific to at-risk children and not observed among typical controls. Among at-risk children, several kindergarten-age factors were found to significantly contribute to the prediction of subsequent decoding skills: white matter organization in the posterior right SLF, age, gender, SES, and phonological awareness. These findings suggest that putative compensatory mechanisms are already present by the start of kindergarten. The right SLF, in conjunction with the cognitive-linguistic and socioeconomic factors identified, may play an important role in facilitating reading development among at-risk children. This study has important implications for approaches to early screening, and assessment strategies for at-risk children.


Asunto(s)
Dislexia , Sustancia Blanca , Concienciación , Niño , Preescolar , Humanos , Estudios Longitudinales , Neuroimagen , Lectura
16.
Artículo en Inglés | MEDLINE | ID: mdl-32882960

RESUMEN

By 15 April 2020, more than 1.5 billion students worldwide experienced school closures in an effort to slow the spread of a novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), during the worldwide coronavirus disease 2019 (COVID-19) pandemic. These interruptions in formal in-person educational experiences caused adverse consequences on school-age children's academic outcomes. Using a pre-existing database, we calculated changes in children's reading ability without formal education (i.e., the summer months). The resultant models predicted that the rate of reading ability gain in kindergarten children during COVID-19 school closures without formal in-person education will decrease 66% (2.46 vs. 7.17 points/100 days), compared to the business-as-usual scenario, resulting in a 31% less reading ability gain from 1 January 2020 to 1 September 2020. Additionally, the model predicted that kindergarten children who have books read to them daily would have 2.3 points less loss (42%) compared to those who do not, who are predicted to have a 5.6-point loss during the same time period. Even though reading books to children will not substitute the critical role of formal education in teaching children how to read, families, educators, and policy makers can promote this simple strategy to facilitate and maintain reading ability gain during school closures, which may be a common occurrence as nations see the public health benefits of physical distancing for the current and future pandemic outbreaks.


Asunto(s)
Éxito Académico , Infecciones por Coronavirus/epidemiología , Neumonía Viral/epidemiología , Lectura , Betacoronavirus , COVID-19 , Preescolar , Humanos , Pandemias , SARS-CoV-2 , Instituciones Académicas
17.
J Speech Lang Hear Res ; 63(5): 1446-1466, 2020 05 22.
Artículo en Inglés | MEDLINE | ID: mdl-32343920

RESUMEN

Purpose We investigated four theoretically based latent variable models of word learning in young school-age children. Method One hundred sixty-seven English-speaking second graders with typical development from three U.S. states participated. They completed five different tasks designed to assess children's creation, storage, retrieval, and production of the phonological and semantic representations of novel words and their ability to link those representations. The tasks encompassed the triggering and configuration stages of word learning. Results Results showed that a latent variable model with separate phonological and semantic factors and linking indicators constrained to load on the phonological factor best fit the data. Discussion The structure of word learning during triggering and configuration reflects separate but related phonological and semantic factors. We did not find evidence for a unidimensional latent variable model of word learning or for separate receptive and expressive word learning factors. In future studies, it will be interesting to determine whether the structure of word learning differs during the engagement stage of word learning when phonological and semantic representations, as well as the links between them, are sufficiently strong to affect other words in the lexicon.


Asunto(s)
Fonética , Vocabulario , Niño , Humanos , Instituciones Académicas , Semántica , Aprendizaje Verbal
18.
Artículo en Inglés | MEDLINE | ID: mdl-32178605

RESUMEN

Invasive meningococcal disease (IMD) is a notifiable disease in Australia, and both probable and laboratory-confirmed cases of IMD are reported to the National Notifiable Diseases Surveillance System (NNDSS). In 2018, there were 281 IMD cases notified to the NNDSS. Of these, 278 were laboratory-confirmed cases analysed by the reference laboratories of the Australian National Neisseria Network (NNN). On investigation, the serogroup was able to be determined for 98.6% (274/278) of laboratory-confirmed cases. Serogroup B infections accounted for 44.2% of cases (123 cases); serogroup W for 36.3% of cases (101 cases); serogroup Y infections for 15.8% (44 cases) and serogroup C 1.4% (4 cases); and there were two unrelated cases (0.7%) of IMD attributable to serogroup E. Using molecular methods, 181/278 IMD cases were able to be typed. Of note was that 89% of typed serogroup W IMD cases (66/74) were porA antigen type P1.5,2; of this number, 44% (29/66) were sequence type 11, the hypervirulent strain reported in recent outbreaks in Australia and overseas. The primary age peak of IMD in Australia in 2018 was again observed in adults aged 45 years or more; a secondary disease peak was observed in children and infants aged less than 5 years. Serogroup B infections predominated in those aged less than 5 years, whereas serogroup W and serogroup Y infections predominated in those aged 45 years or more. Of the IMD isolates tested for antimicrobial susceptibility, 1.4% (3/210) were resistant to penicillin with an MIC ≥ 1 mg/L, and decreased susceptibility to penicillin was observed in a further 93.8% (197/210) of isolates. All isolates were susceptible to ceftriaxone and rifampicin; there was one isolate less susceptible to ciprofloxacin.


Asunto(s)
Antibacterianos/uso terapéutico , Infecciones Meningocócicas , Neisseria meningitidis , Adulto , Distribución por Edad , Australia/epidemiología , Ceftriaxona , Niño , Preescolar , Ciprofloxacina , Femenino , Humanos , Lactante , Masculino , Infecciones Meningocócicas/tratamiento farmacológico , Infecciones Meningocócicas/epidemiología , Persona de Mediana Edad , Neisseria meningitidis/efectos de los fármacos , Penicilinas , Vigilancia de la Población , Serogrupo
19.
J Speech Lang Hear Res ; 63(1): 151-162, 2020 01 22.
Artículo en Inglés | MEDLINE | ID: mdl-31910060

RESUMEN

Purpose In this study, we examine how well kindergarten letter identification and phonological awareness predict 2nd grade word reading and dyslexia in children with developmental language disorder (DLD) and their age- and grade-matched peers with typical language (TL). Method We employ (a) logistic regression to determine how letter identification and phonological awareness predict dyslexia, that is, dichotomous categorization of good or poor word reading, in children with DLD and TL and (b) quantile regression to determine how letter identification and phonological awareness are associated with word reading abilities on a continuum in these groups of children. Results Logistic regression revealed that letter identification was the only significant, unique kindergarten predictor of dyslexia in 2nd grade children with DLD, when compared to phonological awareness. In children with TL, both kindergarten letter identification and phonological awareness significantly predicted dyslexia in 2nd grade. Quantile regression revealed that kindergarten letter identification was a stronger predictor of 2nd grade word reading for average and lower achieving word readers with DLD and their peers with TL compared to higher performing readers. Phonological awareness was weakly associated with word reading across the full continuum of word reading abilities in children with DLD. Conclusion Letter identification is a more accurate predictor of poor word reading and dyslexia than phonological awareness in kindergarten children with DLD, which has important implications for recent U.S. legislation around early identification of dyslexia in all children.


Asunto(s)
Dislexia/diagnóstico , Trastornos del Desarrollo del Lenguaje/psicología , Pruebas del Lenguaje/estadística & datos numéricos , Fonética , Lectura , Niño , Lenguaje Infantil , Análisis por Conglomerados , Dislexia/etiología , Femenino , Humanos , Trastornos del Desarrollo del Lenguaje/complicaciones , Modelos Logísticos , Estudios Longitudinales , Masculino , Valor Predictivo de las Pruebas
20.
Lang Speech Hear Serv Sch ; 50(4): 540-561, 2019 10 10.
Artículo en Inglés | MEDLINE | ID: mdl-31600465

RESUMEN

Purpose The purpose of our study was to test the hypotheses (a) that children with dyslexia have spoken word learning deficits primarily related to phonology and (b) that children with dyslexia and concomitant developmental language disorder (DLD) have word learning deficits related to both phonology and semantic processing when compared to peers with typical development (TD). Method Second-graders with dyslexia (n = 82), concomitant dyslexia and DLD (dyslexia + DLD; n = 40), and TD (n = 167) learned names and semantic features for cartoon monsters in 5 carefully controlled word learning tasks that varied phonological and semantic demands. The computer-based tasks were played in 6 different word learning games. We analyzed results using Bayesian statistics. Results In general, the dyslexia + DLD group showed lower accuracy on tasks compared to the dyslexia and TD groups. As predicted, word learning tasks that taxed phonology revealed deficits in the dyslexia group, although there were some exceptions related to visual complexity. Word learning deficits in the dyslexia + DLD group were present in tasks that taxed phonology, semantic processing, or both. Conclusions The dyslexia + DLD group demonstrated word learning deficits across the range of word learning tasks that tapped phonology and semantic processing, whereas the dyslexia group primarily struggled with the phonological aspects of word learning. Supplemental Material https://doi.org/10.23641/asha.9807929.


Asunto(s)
Dislexia/fisiopatología , Dislexia/rehabilitación , Trastornos del Desarrollo del Lenguaje , Aprendizaje Verbal , Análisis de Varianza , Teorema de Bayes , Niño , Femenino , Humanos , Terapia del Lenguaje/métodos , Aprendizaje , Masculino , Lectura , Semántica
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