Change in prevalence of asthma in Danish children and adolescents

Thomsen, Simon F.; Ulrik, Charlotte Suppli; Larsen, Klaus; Backer, Vibeke

doi:10.1016/s1081-1206(10)61757-7

Cited by 88 publications

(65 citation statements)

References 28 publications

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“…It is also important to point out that paraseptal emphysema in the upper lobes was also present in five cases and most prominent in three. It is well known that paraseptal emphysema is associated with tobacco smoking and results in fibrosis-like thickening of the interlobular septa [2]. However, the fact that our patients had the same imaging findings as those described by COTTIN et al [1] shows that paraseptal emphysema is truly a novel finding and, as these authors suggest, it may be the hallmark of CPFE.…”

Section: To the Editorssupporting

confidence: 73%

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A theory explaining time trends in asthma prevalence

Hahn¹

2006

Eur Respir J

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Section: To the Editorssupporting

confidence: 73%

“…While they and others have described an apparent levelling off and/or decline in asthma prevalence, a recent report from Denmark describes an increasing prevalence, particularly for nonatopic asthma in young females and adolescents [2]. No satisfactory explanation for these time trends has been offered.…”

Section: To the Editorsmentioning

confidence: 96%

A theory explaining time trends in asthma prevalence

Hahn¹

2006

Eur Respir J

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“…Only few studies have addressed the temporal variation of asthma prevalence in atopic and nonatopic subjects. In a study on Danish children [37], the prevalence of current asthma increased significantly from 1986 to 2001 and this was due primarily to non-atopic asthma. A Scottish study on adults reported that the prevalence of asthma increased from 1972-1976 to 1996 only in subjects without hay fever [38].…”

Section: The Asthma Epidemic In Italymentioning

confidence: 99%

Trends in the prevalence of asthma and allergic rhinitis in Italy between 1991 and 2010

Marco¹,

Cappa²,

Accordini³

et al. 2011

Eur Respir J

189

162

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The prevalence of asthma increased worldwide until the 1990s, but since then there has been no clear temporal pattern.The present study aimed to assess time trends in the prevalence of current asthma, asthma-like symptoms and allergic rhinitis in Italian adults from 1990 to 2010.The same screening questionnaire was administered by mail or phone to random samples of the general population (age 20-44 yrs) in Italy, in the frame of three multicentre studies: the European Community Respiratory Health Survey (ECRHS) (1991-1993; n56,031); the Italian Study on Asthma in Young Adults (ISAYA) (1998-2000; n518,873); and the Gene Environment Interactions in Respiratory Diseases (GEIRD) study (2007-2010; n510,494). Time trends in prevalence were estimated using Poisson regression models in the centres that repeated the survey at different points in time.From 1991 to 2010, the median prevalence of current asthma, wheezing and allergic rhinitis increased from 4.1% to 6.6%, from 10.1% to 13.9% and from 16.8% to 25.8%, respectively. The prevalence of current asthma was stable during the 1990s and increased (relative risk 1.38, 95% CI 1.19-1.59) from 1998-2000 to 2007-2010, mainly in subjects who did not report allergic rhinitis. The prevalence of allergic rhinitis has increased continuously since 1991.The asthma epidemic is not over in Italy. During the past 20 yrs, asthma prevalence has increased by 38%, in parallel with a similar increase in asthma-like symptoms and allergic rhinitis.

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“…Increasing prevalence of pediatric asthma with economic development is well documented, and it continues to increase in the developed countries (for example, from 3.6% to 6.2% between 1980 and 1996 in the US [1], and 5.3% to 11.7% between 1986 and 2001 in Denmark [21]). Many developing countries also have high rates, such as Oman, 20.7% in [13][14] year olds and 10.5% in 6-7 yearolds, and Rio De Janeiro in Brazil, 15-19% pediatric asthma rates, depending on local pollutant levels [2][3][4].…”

Section: Introductionmentioning

confidence: 99%