Prevalence of asthma and allergy in schoolchildren in Belmont, Australia: three cross sectional surveys over 20 years

Toelle, Brett G.; Ng, Kitty; Belousova, Elena G.; Salome, Cheryl M.; Peat, Jennifer K.; Marks, Guy B.

doi:10.1136/bmj.328.7436.386

Cited by 135 publications

(114 citation statements)

References 5 publications

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“…Recently, the first publications have appeared that indicate that in several countries, no further increase (and possibly even a decrease) is being observed in the prevalence of asthma among children [8][9][10][11][12][13][14][15]. Thus far, it is unclear what might have caused this recent change [16].…”

mentioning

confidence: 99%

The prevalence of asthma in children: a reversing trend

Schayck

Smit²

2005

Eur Respir J

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In several countries it has been observed that there has been no further increase in the prevalence of asthma. This study aimed to look at asthma prevalence in children during the past 15-30 years in The Netherlands.Both general practice registration (Continuous Morbidity Registration, Nijmegen) and surveys of the public health service in Limburg (Southern parts of the Netherlands) were used for this purpose.The general practice registration showed that after a five-fold increase in asthma prevalence during the 1980s and 1990s a downward trend seemed to occur around the turn of the century. The public health service confirms a clear decrease in wheezing and dyspnoea in children during the late 1990s. Thus far, there has been no satisfactory explanation for this observation.

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mentioning

confidence: 99%

The prevalence of asthma in children: a reversing trend

Schayck

Smit²

2005

Eur Respir J

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“…Conversely, inconsistencies in the findings in relation to these various outcomes should lead to caution in generalising the findings. In the subsequent 10 yrs, there was a decline in the prevalence of asthma symptoms and asthma diagnoses, but no change in the prevalence of airway hyperresponsiveness [30]. The explanation for this divergence in findings is unclear.…”

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confidence: 56%

Identifying asthma in population studies: from single entity to a multi-component approach

Marks¹

2005

Eur Respir J

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“…There is room to speculate that patients, faced with finding the time to visit a GP and the expense of an up-front cash payment, may be simply buying their bronchodilators from the local pharmacy and relieving the symptoms as required rather than seeking long term preventive help from their GP. Both Robertson [4] and Teolle [3] reported a decrease in the rate of asthma medication use among school students in their respective studies. However, while the BEACH data supports the reduction in GP prescribed bronchodilators over the five years, from 3.7 (95% CI: 3.5-4.0) to 2.5 (2.2-2.7) per 100 encounters, there was no significant difference in the rate of prescribed preventive medications (2.2, 95% CI: 2.1-2.4 to 2.0, 95% CI: 1.9-2.2) [19].…”

Section: Discussionmentioning

confidence: 99%

“…A local study by Toelle et al [3] of school children in New South Wales, found a decrease (7.0%) in prevalence of diagnosed asthma, recent wheeze (5.0%) and use of asthma medication (5.0%) between 1992 and 2002. The authors were uncertain how sustained or generalisable their findings might be.…”

Section: Introductionmentioning

confidence: 99%

Changes in asthma management in Australian general practice

Henderson

Knox

Pan

et al. 2004

Primary Care Respiratory Journal

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Summary Aims: To investigate changes in national prevalence, severity and management rates of asthma in Australian general practice from 1990 to 2003.Methods: A comparative study of general practitioner (GP) encounters with asthma patients, in cross sectional surveys from 1990-91 and 1998-2003. Main outcome measures were relative rates of asthma management, prevalence and severity of asthma.Results: The prevalence of asthma remained constant between 1999 and 2002. Prevalence in children was significantly higher (18.4%) than in adults (13.2%) (p < 0.0001). The asthma management rate fell by 0.5 (from 3.7 to 3.2) per 100 encounters between 1990-91 and 1998 (8 years), and by a further 0.5 (from 3.2 to 2.7) per 100 encounters between 1998 and 2003 (5 years) suggesting an accelerating rate of decrease in the general practice asthma management rate over time.Conclusions: These findings suggest that Australians attending general practice may be gaining better control of their asthma.

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Prevalence of asthma and allergy in schoolchildren in Belmont, Australia: three cross sectional surveys over 20 years

Cited by 135 publications

References 5 publications

The prevalence of asthma in children: a reversing trend

The prevalence of asthma in children: a reversing trend

Identifying asthma in population studies: from single entity to a multi-component approach

Changes in asthma management in Australian general practice

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