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Executive functions in children with developmental coordination disorder: a 2‐year follow‐up study
Aim: Executive Function (EF) impairments have been identified in children with motor difficulties, with and without a diagnosis of developmental coordination disorder (DCD). However, most studies are cross-sectional.This study investigates the development of EF in children with poor motor skills over two years.
Method: Children aged 7- 11 years (N=51) were assessed twice, two years apart, on verbal and nonverbal measures of EFs: executive-loaded working memory; fluency; response inhibition; planning; and cognitive flexibility. Typically developing children (TD: n=17) were compared to those with a clinical diagnosis of DCD (n=17) and those with identified motor difficulties (MD: n=17), but no formal diagnosis of DCD.
Results: Developmental gains in EF were similar between groups, although a gap between children with poor motor skills and TD children on nonverbal EFs persisted. Specifically, children with DCD performed significantly more poorly than TD children on all nonverbal EF tasks and verbal fluency tasks at both time points; and children with MD but no diagnosis showed persistent EF difficulties in nonverbal tasks of working memory and fluency.
Interpretation: Children with DCD and MD demonstrated EF difficulties over two years, which may impact on activities of daily living and academicachievement, in addition to their
motor deficit
Contribution of smoking and air pollution exposure in urban areas to social differences in respiratory health
<p>Abstract</p> <p>Background</p> <p>Socio-economic status, smoking, and exposure to increased levels of environmental air pollution are associated with adverse effects on respiratory health. We assessed the contribution of occupational exposures, smoking and outdoor air pollution as competing factors for the association between socio-economic status and respiratory health indicators in a cohort of women from the Ruhr area aged 55 at the time of investigation between 1985 and 1990.</p> <p>Methods</p> <p>Data of 1251 women with spirometry and complete questionnaire information about respiratory diseases, smoking and potential confounders were used in the analyses. Exposure to large-scale air pollution was assessed with data from monitoring stations. Exposure to small-scale air pollution was assessed as traffic-related exposure by distance to the nearest major road. Socio-economic status was defined by educational level. Multiple regression models were used to estimate the contribution of occupational exposures, smoking and outdoor air pollution to social differences in respiratory health.</p> <p>Results</p> <p>Women with less than 10 years of school education in comparison to more than 10 years of school education were more often occupationally exposed (16.4% vs. 10.1%), smoked more often (20.3% vs. 13.9%), and lived more often close to major roads (26.0% vs. 22.9%). Long-term exposure to increased levels of PM<sub>10 </sub>was significantly associated with lower school education. Women with low school education were more likely to suffer from respiratory symptoms and had reduced lung function. In the multivariate analysis the associations between education and respiratory health attenuated after adjusting for occupational exposure, smoking and outdoor air pollution. The crude odds ratio for the association between the lung function indicator FEV<sub>1 </sub>less than 80% of predicted value and educational level (<10 years vs. >10 years of school education) was 1.83 (95% CI: 1.22–2.74). This changed to 1.56 (95% CI: 1.03–2.37) after adjusting for occupational exposure, smoking and outdoor air pollution.</p> <p>Conclusion</p> <p>We found an association between socio-economic status and respiratory health. This can partly be explained by living conditions indicated by occupational exposure, smoking behaviour and ambient air pollution. A relevant part of the social differences in respiratory health, however, remained unexplained.</p
Executive difficulties in Developmental Coordination Disorder: Methodological issues and future directions
Motor skills and cognition have often been studied separately, but there is increasing understanding of the close relationship between these abilities over development. Motor coordination difficulties are central to the diagnosis of Developmental Coordination Disorder (DCD), and recent evidence suggests that certain cognitive processes, known as ‘executive functions’, may be affected in individuals with this neurodevelopmental disorder. In this article, we review the research concerning executive functions in DCD, considering behavioural, neuroimaging and questionnaire studies of a range of processes. We highlight methodological issues relating to our current understanding of executive functioning difficulties in DCD, including problems with interpretation of results based on the tasks used. We suggest future directions for research in this area, including the relationship of laboratory research to interventions within ‘real-world’ contexts
Persistent systemic inflammation is associated with poor clinical outcomes in COPD: a novel phenotype.
Because chronic obstructive pulmonary disease (COPD) is a heterogeneous condition, the identification of specific clinical phenotypes is key to developing more effective therapies. To explore if the persistence of systemic inflammation is associated with poor clinical outcomes in COPD we assessed patients recruited to the well-characterized ECLIPSE cohort (NCT00292552)
Upper Extremity Function and Occupational Performance in Children With Spastic Cerebral Palsy Following Lower Extremity Botulinum Toxin Injections
Success in Adults With Probable Developmental Coordination Disorder Using Structural Equation Modeling
Psychiatric diagnoses, outcomes and lengths of stay of patients admitted to an acute psychogeriatric unit
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