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The aim of this study was to assess the reliability and validity of the 6-min walk test (6MWT) in healthy children. Chinese secondary school students were randomly recruited. They attended the current authors' unit on two occasions, separated by 2 weeks. Physical examination and standardised maximum incremental exercise testing on a treadmill were performed(More)
RATIONALE We have previously reported that the six-minute-walk test (6MWT) is a reliable and valid functional test for assessing exercise tolerance and endurance. There is a lack of pediatric standard reference for the 6MWT. OBJECTIVES To construct height-specific standards for the 6MWT for children aged 7 to 16 years. METHODS The anthropometric data,(More)
BACKGROUND A study was undertaken to measure cough frequency in children with stable asthma using a validated monitoring device, and to assess the correlation between cough frequency and the degree and type of airway inflammation. METHODS Thirty six children of median age 11.5 years (interquartile range (IQR) 9-14) with stable asthma were recruited. They(More)
OBJECTIVE To establish the association between airway inflammation and severity of obstructive sleep apnoea (OSA) in children. METHODS Consecutive children presenting with symptoms suggestive of OSA were recruited. They completed a sleep apnoea symptom questionnaire, underwent physical examination, spirometry, sputum induction and an overnight(More)
I I Abstract A high performance, area efficient and easy to use ROM compiler was designed. The design has been adapted to many different deep sub-micron processes and proven satisfactorily on silicon. Some design techniques which give the compiler the desirable features for ASIC applications are discussed. The software automation technologies are also(More)
We consider models of telecommunication systems that incorporate probability, dense real-time and data. We present a new formal abstraction method for computing minimum and maximum reachability probabilities for such models. Our approach uses strictly local formal abstract steps to reduce both the size of abstract specifications generated and the complexity(More)
BACKGROUND AND OBJECTIVE Studies of Western populations have shown that increased exhaled nitric oxide (FeNO) and/or sputum eosinophils (sp-Eos) are predictive of asthma exacerbations. However, the utility of these measurements in different populations and settings is unknown. This study aimed to determine the predictors for failure of reduction of inhaled(More)
Asthma is characterised by variable degrees of airway obstruction, airway hyper-responsiveness, and chronic airway inflammation. Current guidelines emphasise that inhaled corticosteroid treatment is the mainstay of asthma therapy because it targets the underlying airway inflammation. It is prudent to use the lowest possible dose of inhaled corticosteroid(More)