Can the increase in body mass index explain the rising trend in asthma in children?

BACKGROUND The reported association between asthma and obesity and the documented rise in each over time have led to suggestions that rising obesity might explain the increase in the prevalence of asthma. Trends in both in British children participating in the National Study of Health and Growth wer...

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Veröffentlicht in:Thorax 2001-11, Vol.56 (11), p.845-850
Hauptverfasser: Chinn, S, Rona, R J
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Rona, R J
description BACKGROUND The reported association between asthma and obesity and the documented rise in each over time have led to suggestions that rising obesity might explain the increase in the prevalence of asthma. Trends in both in British children participating in the National Study of Health and Growth were marked from 1982 to 1994. METHODS Odd ratios for trends in asthma and symptoms in 8 and 9 year old children were calculated with and without adjustment for body mass index (BMI). RESULTS In a representative sample of white children the odds ratio per year for asthma was 1.09 (95% CI 1.07 to 1.11) before and after adjustment for BMI for boys and 1.09 (95% CI 1.07 to 1.12) and 1.09 (95% CI 1.05 to 1.12), respectively, for girls. Unadjusted and adjusted odds ratios were also virtually identical for wheeze and “asthma or bronchitis”. The lack of effect of adjustment was due to a change in the association between BMI and symptoms with time. CONCLUSIONS Trends in overweight and obesity do not explain the increase in asthma. The evidence points towards the association between asthma and obesity being of recent origin. This may be explained by obesity being a marker of recent lifestyle differences now associated with both asthma and overweight.
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Trends in both in British children participating in the National Study of Health and Growth were marked from 1982 to 1994. METHODS Odd ratios for trends in asthma and symptoms in 8 and 9 year old children were calculated with and without adjustment for body mass index (BMI). RESULTS In a representative sample of white children the odds ratio per year for asthma was 1.09 (95% CI 1.07 to 1.11) before and after adjustment for BMI for boys and 1.09 (95% CI 1.07 to 1.12) and 1.09 (95% CI 1.05 to 1.12), respectively, for girls. Unadjusted and adjusted odds ratios were also virtually identical for wheeze and “asthma or bronchitis”. The lack of effect of adjustment was due to a change in the association between BMI and symptoms with time. CONCLUSIONS Trends in overweight and obesity do not explain the increase in asthma. The evidence points towards the association between asthma and obesity being of recent origin. This may be explained by obesity being a marker of recent lifestyle differences now associated with both asthma and overweight.</description><identifier>ISSN: 0040-6376</identifier><identifier>EISSN: 1468-3296</identifier><identifier>DOI: 10.1136/thorax.56.11.845</identifier><identifier>PMID: 11641508</identifier><identifier>CODEN: THORA7</identifier><language>eng</language><publisher>London: BMJ</publisher><subject>Age ; Analysis ; Asthma ; Asthma - epidemiology ; Asthma - etiology ; Asthma in children ; Biological and medical sciences ; Birth Weight ; Body Mass Index ; Bronchitis ; Causes of ; Child ; Children &amp; youth ; Chronic obstructive pulmonary disease, asthma ; Complications and side effects ; Confidence Intervals ; Families &amp; family life ; Family Characteristics ; Female ; Humans ; Inner city ; Logistic Models ; Longitudinal Studies ; Male ; Measurement ; Medical sciences ; Multiple births ; Obesity ; Obesity - complications ; Obesity - epidemiology ; Obesity in children ; Odds Ratio ; Original ; Overweight ; Pneumology ; Prevalence studies (Epidemiology) ; Questionnaires ; Response rates ; Risk Factors ; Sex Factors ; Skinfold Thickness ; Tobacco Smoke Pollution ; Trends</subject><ispartof>Thorax, 2001-11, Vol.56 (11), p.845-850</ispartof><rights>British Thoracic Society</rights><rights>2002 INIST-CNRS</rights><rights>COPYRIGHT 2001 BMJ Publishing Group Ltd.</rights><rights>Copyright: 2001 British Thoracic Society</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b654t-3d0af9328c1c1c25763385e961df39fa628091bcaedf7028ca0a9c163c7a74203</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC1745960/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC1745960/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,723,776,780,881,27903,27904,53769,53771</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=14107048$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11641508$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chinn, S</creatorcontrib><creatorcontrib>Rona, R J</creatorcontrib><title>Can the increase in body mass index explain the rising trend in asthma in children?</title><title>Thorax</title><addtitle>Thorax</addtitle><description>BACKGROUND The reported association between asthma and obesity and the documented rise in each over time have led to suggestions that rising obesity might explain the increase in the prevalence of asthma. Trends in both in British children participating in the National Study of Health and Growth were marked from 1982 to 1994. METHODS Odd ratios for trends in asthma and symptoms in 8 and 9 year old children were calculated with and without adjustment for body mass index (BMI). RESULTS In a representative sample of white children the odds ratio per year for asthma was 1.09 (95% CI 1.07 to 1.11) before and after adjustment for BMI for boys and 1.09 (95% CI 1.07 to 1.12) and 1.09 (95% CI 1.05 to 1.12), respectively, for girls. Unadjusted and adjusted odds ratios were also virtually identical for wheeze and “asthma or bronchitis”. The lack of effect of adjustment was due to a change in the association between BMI and symptoms with time. CONCLUSIONS Trends in overweight and obesity do not explain the increase in asthma. The evidence points towards the association between asthma and obesity being of recent origin. 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Rona, R J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b654t-3d0af9328c1c1c25763385e961df39fa628091bcaedf7028ca0a9c163c7a74203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Age</topic><topic>Analysis</topic><topic>Asthma</topic><topic>Asthma - epidemiology</topic><topic>Asthma - etiology</topic><topic>Asthma in children</topic><topic>Biological and medical sciences</topic><topic>Birth Weight</topic><topic>Body Mass Index</topic><topic>Bronchitis</topic><topic>Causes of</topic><topic>Child</topic><topic>Children &amp; youth</topic><topic>Chronic obstructive pulmonary disease, asthma</topic><topic>Complications and side effects</topic><topic>Confidence Intervals</topic><topic>Families &amp; family life</topic><topic>Family Characteristics</topic><topic>Female</topic><topic>Humans</topic><topic>Inner city</topic><topic>Logistic Models</topic><topic>Longitudinal Studies</topic><topic>Male</topic><topic>Measurement</topic><topic>Medical sciences</topic><topic>Multiple births</topic><topic>Obesity</topic><topic>Obesity - complications</topic><topic>Obesity - epidemiology</topic><topic>Obesity in children</topic><topic>Odds Ratio</topic><topic>Original</topic><topic>Overweight</topic><topic>Pneumology</topic><topic>Prevalence studies (Epidemiology)</topic><topic>Questionnaires</topic><topic>Response rates</topic><topic>Risk Factors</topic><topic>Sex Factors</topic><topic>Skinfold Thickness</topic><topic>Tobacco Smoke Pollution</topic><topic>Trends</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chinn, S</creatorcontrib><creatorcontrib>Rona, R J</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health &amp; 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Trends in both in British children participating in the National Study of Health and Growth were marked from 1982 to 1994. METHODS Odd ratios for trends in asthma and symptoms in 8 and 9 year old children were calculated with and without adjustment for body mass index (BMI). RESULTS In a representative sample of white children the odds ratio per year for asthma was 1.09 (95% CI 1.07 to 1.11) before and after adjustment for BMI for boys and 1.09 (95% CI 1.07 to 1.12) and 1.09 (95% CI 1.05 to 1.12), respectively, for girls. Unadjusted and adjusted odds ratios were also virtually identical for wheeze and “asthma or bronchitis”. The lack of effect of adjustment was due to a change in the association between BMI and symptoms with time. CONCLUSIONS Trends in overweight and obesity do not explain the increase in asthma. The evidence points towards the association between asthma and obesity being of recent origin. This may be explained by obesity being a marker of recent lifestyle differences now associated with both asthma and overweight.</abstract><cop>London</cop><pub>BMJ</pub><pmid>11641508</pmid><doi>10.1136/thorax.56.11.845</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record>
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subjects Age
Analysis
Asthma
Asthma - epidemiology
Asthma - etiology
Asthma in children
Biological and medical sciences
Birth Weight
Body Mass Index
Bronchitis
Causes of
Child
Children & youth
Chronic obstructive pulmonary disease, asthma
Complications and side effects
Confidence Intervals
Families & family life
Family Characteristics
Female
Humans
Inner city
Logistic Models
Longitudinal Studies
Male
Measurement
Medical sciences
Multiple births
Obesity
Obesity - complications
Obesity - epidemiology
Obesity in children
Odds Ratio
Original
Overweight
Pneumology
Prevalence studies (Epidemiology)
Questionnaires
Response rates
Risk Factors
Sex Factors
Skinfold Thickness
Tobacco Smoke Pollution
Trends
title Can the increase in body mass index explain the rising trend in asthma in children?
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