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Considerations for Causal Inference StudiesRachel Foong BSc (hons), PhD, MBiostat Honorary Research Associate 08 6319 1626 Rachel.Foong@thekids.org.au Senior Research Fellow Dr Foong is an
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Multi-ancestry genome-wide association analyses improve resolution of genes and pathways influencing lung function and chronic obstructive pulmonary disease riskLung-function impairment underlies chronic obstructive pulmonary disease (COPD) and predicts mortality. In the largest multi-ancestry genome-wide association meta-analysis of lung function to date, comprising 580,869 participants, we identified 1,020 independent association signals implicating 559 genes supported by ≥2 criteria from a systematic variant-to-gene mapping framework. These genes were enriched in 29 pathways. Individual variants showed heterogeneity across ancestries, age and smoking groups, and collectively as a genetic risk score showed strong association with COPD across ancestry groups.
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Ventilatory response and stability of oxygen saturation during a hypoxic challenge in very preterm infantsPreterm infants have immature control of breathing and impaired pulmonary gas exchange. We hypothesized that infants with bronchopulmonary dysplasia (BPD) have a blunted ventilatory response and peripheral oxygen saturation (SpO2 ) instability during a hypoxic challenge.
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Determinants of lung function development from birth to age 5 years: an interrupted time series analysis of a South African birth cohortEarly life is a key period that determines long-term health. Lung development in childhood predicts lung function attained in adulthood and morbidity and mortality across the life course. We aimed to assess the effect of early-life lower respiratory tract infection (LRTI) and associated risk factors on lung development from birth to school age in a South African birth cohort.
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Associations between respiratory and vascular function in early childhoodThe link between respiratory and vascular health is well documented in adult populations. Impaired lung function is consistently associated with thicker arteries and higher incidence of cardiovascular disease. However, there are limited data on this relationship in young children and the studies that exist have focussed on populations at high risk of cardiorespiratory morbidity.
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ERS technical standard on bronchial challenge testing: pathophysiology and methodology of indirect airway challenge testingAssessment of airway hyperresponsiveness are valuable tools to understand and to monitor airway function and to characterise the underlying asthma phenotype to guide therapy
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A novel, palatable paediatric oral formulation of midazolam: Pharmacokinetics, tolerability, efficacy and safetyWe conclude that the novel chocolate-based formulation of midazolam provides improved tolerability while remaining efficacious
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Reference values for spirometry and their use in test interpretation: A Position Statement from the Australian and New Zealand Society of Respiratory ScienceThe ANZSRS recommends the adoption of the Global Lung Function Initiative (GLI) 2012 spirometry reference values throughout Australia and New Zealand
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Mannitol challenge testing for asthma in a community cohort of young adultsWe aimed to quantify the diagnostic utility of mannitol challenge testing for asthma in a community cohort and a symptomatic wheezing subset of this cohort.
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Multiple breath washout cannot be used for tidal breath parameter analysis in infantsThere are differences in tidal breathing parameters during multiple breath washout testing with SF6 gas mixture in infants