Respiratory Disorders in Seven‐year‐old Children in Tasmania Aims, Methods and Administration of the Survey

Gibson, Heather B.; Silverstone, H.; Gandevia, Bryan; Hall, Graham J. L.

doi:10.5694/j.1326-5377.1969.tb105698.x

Cited by 62 publications

(32 citation statements)

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“…Details of this and the subsequent survey in 1974 have been reported elsewhere 18 19. In 2004, some 7312 (85.2%) of the original participants were traced20 and sent a detailed respiratory questionnaire.…”

Section: Methodsmentioning

confidence: 99%

Factors influencing asthma remission: a longitudinal study from childhood to middle age

Burgess

Matheson

Gurrin

et al. 2011

Thorax

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Objective To examine asthma remission from childhood to middle age. Methods This was a population-based cohort study. In 1968 the Tasmanian Longitudinal Health Study enrolled 8583 7-year-old Tasmanian schoolchildren who were re-surveyed in 2004. Those reporting ever having asthma when last surveyed completed another questionnaire in 2007 ascertaining age at last asthma attack and asthma medication use. The main outcome measure was asthma remission, defined as no asthma attack for 2 years and no current asthma medication use, or no self-reported asthma in adult life but with parent-reported childhood asthma. Results Of 5729 respondents to the 2004 survey, 1238 self-reported asthma. A further 573 denied asthma, but had parent-reported childhood asthma, giving a study sample of 1811. Asthma had remitted in 1177 (65.0%) of whom 649 (55.1%) were male. Childhood (OR 0.38, 95% CI 0.25 to 0.58) and later-onset allergic rhinitis (0.42, 0.29 to 0.63), childhood (0.66, 0.47 to 0.94) and later-onset eczema (0.66, 0.47 to 0.92), maternal asthma (0.66, 0.47 to 0.92) and childhood chronic bronchitis (0.56, 0.41 to 0.76) were negatively associated with remission. There was weaker evidence for a negative association between passive smoking (0.75, 0.54 to 1.04) and lower socio-economic status (p-trend 0.09) and remission. Childhood-onset asthma (3.76, 2.58 to 5.49) was more likely to remit than adult-onset asthma. Adult smoking was positively associated with remission in childhood-onset asthma (1.49, 1.06 to 2.09). Sex did not influence remission. Conclusion While inherited factors cannot be changed, the effect of allergic rhinitis or eczema on asthma remission might be altered by early, aggressive treatment. Every effort should be made to lessen passive exposure to tobacco smoke.

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Section: Methodsmentioning

confidence: 99%

Factors influencing asthma remission: a longitudinal study from childhood to middle age

Burgess

Matheson

Gurrin

et al. 2011

Thorax

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“…The details of the methodology and some results from this study have been reported elsewhere 16 17 18 19 20. In brief, TAHS commenced in 1968 by recruiting 8583 Tasmanian children born in 1961, who were surveyed for respiratory problems and underwent clinical examination and lung function measurements.…”

Section: Methodsmentioning

confidence: 99%

Adherence to asthma management guidelines by middle-aged adults with current asthma

Kandane‐Rathnayake

Matheson

Simpson

et al. 2009

Thorax

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Background: With the increasing burden of asthma worldwide, much effort has been given to developing and updating management guidelines. Using data from the Tasmanian Longitudinal Health Study (TAHS), the adequacy of asthma management for middle-aged adults with asthma was investigated. Methods: Information about spirometry, medication history and current asthma status was collected by the most recent TAHS when participants were in their mid 40s. Only those who reported ever having asthma were eligible for analysis. Results: Of the 702 participants who reported ever having asthma, 50% had current asthma (n = 351) of whom 71% were categorised as having persistent asthma (n = 98 mild, n = 92 moderate, n = 58 severe). The majority (85

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“…The questionnaire collected information using 65 questions. These were, in sequence: identification; questions from the 1968 Tasmanian Asthma Survey8; the eight core questions on asthma and wheeze from the International Study of Asthma and Allergy in Children (ISAAC) protocol9; asthma medication use; hospitalisation for respiratory illness; use of asthma medication; attendance at regular child care; history of respiratory illness; family history (siblings, parents, and grandparents) of atopic and other disease; maternal/paternal history of asthma, wheezy breathing, or hay fever; maternal and paternal education, occupation, and employment; parental and other smoking; whether mother or others smoke in same room as child; duration of breast feeding; age of introduction to solids; some aspects of current diet; history of a cat as family pet; and details of the current home environment. Regular child care was defined as the child attending a child care arrangement with more than two other children at least once a week for three hours or more.…”

Section: Methodsmentioning

confidence: 99%

Cross sectional study of the relation between sibling number and asthma, hay fever, and eczema

Ponsonby

Couper

Dwyer

et al. 1998

Archives of Disease in Childhood

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Objectives-To document the relation between sibling number and atopic disease, and to assess the contribution of possible confounding factors to the protective eVect of siblings in relation to asthma and hay fever. Design and subjects-Cross sectional survey by parental questionnaire in Tasmania, Australia, on 6378 children (92% of those eligible) who reached 7 years of age during 1995. Methods-Exercise challenge lung function testing was conducted on 428 children. Analyses reported were conducted on singleton births only (n = 6158). Results-The prevalences of a history of asthma ever, hay fever, and eczema were 27%, 19%, and 22%, respectively. Asthma and hay fever, but not eczema, were inversely related to sibling number, with evidence of a dose-response trend. The mean age at onset for asthma or wheezy breathing decreased as the number of siblings increased. The inverse association between sibling number and asthma or hay fever persisted after adjustment for several confounders, such as parental smoking or breast feeding, but did not persist after adjustment for household size in 1995. Conclusions-The protective eVect of high sibling number could not be separated from household size at age 7, and it appears to be operating after birth and influences the age at onset of asthma symptoms. Further work to increase knowledge of how the protective eVect of the presence of siblings works might have important implications for the understanding of the pathogenesis of asthma. (Arch Dis Child 1998;79:328-333)

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Respiratory Disorders in Seven‐year‐old Children in Tasmania Aims, Methods and Administration of the Survey

Cited by 62 publications

References 0 publications

Factors influencing asthma remission: a longitudinal study from childhood to middle age

Factors influencing asthma remission: a longitudinal study from childhood to middle age

Adherence to asthma management guidelines by middle-aged adults with current asthma

Cross sectional study of the relation between sibling number and asthma, hay fever, and eczema

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