Diverging prevalences and different risk factors for childhood asthma and eczema: a cross-sectional study

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Abstract

OBJECTIVE: To compare the prevalences of and risk factors for asthma, wheeze, hay fever and eczema in primary schoolchildren in Aberdeen in 2014.

DESIGN: Cross-sectional survey.

SETTING: Primary schools in Aberdeen, North-East Scotland.

PARTICIPANTS: Children in Scottish school years primary 1-7 were handed a questionnaire by their class teacher to be completed by their parents and returned to the researchers by post or online.

MAIN OUTCOME MEASURES: Lifetime history of asthma, eczema and hay fever, and recent history of wheeze.

RESULTS: 41 schools agreed to participate (87%). 11 249 questionnaires were distributed and 3935 returned (35%). A parent-reported lifetime history of asthma, eczema and hay fever was present in 14%, 30% and 24% of children, respectively. The odds of lifetime asthma increased with age (OR 1.1 per year, 95% CI 1.1 to 1.2), male sex (OR 1.89, 95% CI 1.4 to 2.3), parental smoking (OR 1.7, 95% CI 1.2 to 2.3) and eczema (OR 6.6, 95% CI 5.2 to 8.4). Prevalence of recent wheeze was also reported to be 14% and was positively associated with male sex, parental smoking and eczema. In contrast, parental eczema was the only identified predictor of childhood eczema risk.

CONCLUSIONS: The lifetime prevalence of asthma in primary schoolchildren was 14% in this survey, approximately half the prevalence of eczema. We report diverging prevalences in relation to previous studies in our locality, and different risk factors for asthma and eczema. These findings suggest that asthma and eczema are unlikely to have a common origin.
Original languageEnglish
Article numbere008446
Number of pages8
JournalBMJ Open
Volume5
Issue number6
DOIs
Publication statusPublished - 9 Jun 2015

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Eczema
Asthma
Cross-Sectional Studies
Seasonal Allergic Rhinitis
Smoking
Scotland
Parents
Research Personnel

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Diverging prevalences and different risk factors for childhood asthma and eczema : a cross-sectional study. / Barnish, Maxwell Scott; Tagiyeva, Nara; Devereux, Graham Stuart; Aucott, Lorna Sharman; Turner, Stephen William.

In: BMJ Open, Vol. 5, No. 6, e008446, 09.06.2015.

Research output: Contribution to journalArticle

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title = "Diverging prevalences and different risk factors for childhood asthma and eczema: a cross-sectional study",
abstract = "OBJECTIVE: To compare the prevalences of and risk factors for asthma, wheeze, hay fever and eczema in primary schoolchildren in Aberdeen in 2014.DESIGN: Cross-sectional survey.SETTING: Primary schools in Aberdeen, North-East Scotland.PARTICIPANTS: Children in Scottish school years primary 1-7 were handed a questionnaire by their class teacher to be completed by their parents and returned to the researchers by post or online.MAIN OUTCOME MEASURES: Lifetime history of asthma, eczema and hay fever, and recent history of wheeze.RESULTS: 41 schools agreed to participate (87{\%}). 11 249 questionnaires were distributed and 3935 returned (35{\%}). A parent-reported lifetime history of asthma, eczema and hay fever was present in 14{\%}, 30{\%} and 24{\%} of children, respectively. The odds of lifetime asthma increased with age (OR 1.1 per year, 95{\%} CI 1.1 to 1.2), male sex (OR 1.89, 95{\%} CI 1.4 to 2.3), parental smoking (OR 1.7, 95{\%} CI 1.2 to 2.3) and eczema (OR 6.6, 95{\%} CI 5.2 to 8.4). Prevalence of recent wheeze was also reported to be 14{\%} and was positively associated with male sex, parental smoking and eczema. In contrast, parental eczema was the only identified predictor of childhood eczema risk.CONCLUSIONS: The lifetime prevalence of asthma in primary schoolchildren was 14{\%} in this survey, approximately half the prevalence of eczema. We report diverging prevalences in relation to previous studies in our locality, and different risk factors for asthma and eczema. These findings suggest that asthma and eczema are unlikely to have a common origin.",
author = "Barnish, {Maxwell Scott} and Nara Tagiyeva and Devereux, {Graham Stuart} and Aucott, {Lorna Sharman} and Turner, {Stephen William}",
note = "Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions. Funding This study was funded by Chest Heart and Stroke Scotland and a private donation from the family of Blanche Dawson, who conducted the initial 1964 Aberdeen Schools Asthma Survey.",
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doi = "10.1136/bmjopen-2015-008446",
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TY - JOUR

T1 - Diverging prevalences and different risk factors for childhood asthma and eczema

T2 - a cross-sectional study

AU - Barnish, Maxwell Scott

AU - Tagiyeva, Nara

AU - Devereux, Graham Stuart

AU - Aucott, Lorna Sharman

AU - Turner, Stephen William

N1 - Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions. Funding This study was funded by Chest Heart and Stroke Scotland and a private donation from the family of Blanche Dawson, who conducted the initial 1964 Aberdeen Schools Asthma Survey.

PY - 2015/6/9

Y1 - 2015/6/9

N2 - OBJECTIVE: To compare the prevalences of and risk factors for asthma, wheeze, hay fever and eczema in primary schoolchildren in Aberdeen in 2014.DESIGN: Cross-sectional survey.SETTING: Primary schools in Aberdeen, North-East Scotland.PARTICIPANTS: Children in Scottish school years primary 1-7 were handed a questionnaire by their class teacher to be completed by their parents and returned to the researchers by post or online.MAIN OUTCOME MEASURES: Lifetime history of asthma, eczema and hay fever, and recent history of wheeze.RESULTS: 41 schools agreed to participate (87%). 11 249 questionnaires were distributed and 3935 returned (35%). A parent-reported lifetime history of asthma, eczema and hay fever was present in 14%, 30% and 24% of children, respectively. The odds of lifetime asthma increased with age (OR 1.1 per year, 95% CI 1.1 to 1.2), male sex (OR 1.89, 95% CI 1.4 to 2.3), parental smoking (OR 1.7, 95% CI 1.2 to 2.3) and eczema (OR 6.6, 95% CI 5.2 to 8.4). Prevalence of recent wheeze was also reported to be 14% and was positively associated with male sex, parental smoking and eczema. In contrast, parental eczema was the only identified predictor of childhood eczema risk.CONCLUSIONS: The lifetime prevalence of asthma in primary schoolchildren was 14% in this survey, approximately half the prevalence of eczema. We report diverging prevalences in relation to previous studies in our locality, and different risk factors for asthma and eczema. These findings suggest that asthma and eczema are unlikely to have a common origin.

AB - OBJECTIVE: To compare the prevalences of and risk factors for asthma, wheeze, hay fever and eczema in primary schoolchildren in Aberdeen in 2014.DESIGN: Cross-sectional survey.SETTING: Primary schools in Aberdeen, North-East Scotland.PARTICIPANTS: Children in Scottish school years primary 1-7 were handed a questionnaire by their class teacher to be completed by their parents and returned to the researchers by post or online.MAIN OUTCOME MEASURES: Lifetime history of asthma, eczema and hay fever, and recent history of wheeze.RESULTS: 41 schools agreed to participate (87%). 11 249 questionnaires were distributed and 3935 returned (35%). A parent-reported lifetime history of asthma, eczema and hay fever was present in 14%, 30% and 24% of children, respectively. The odds of lifetime asthma increased with age (OR 1.1 per year, 95% CI 1.1 to 1.2), male sex (OR 1.89, 95% CI 1.4 to 2.3), parental smoking (OR 1.7, 95% CI 1.2 to 2.3) and eczema (OR 6.6, 95% CI 5.2 to 8.4). Prevalence of recent wheeze was also reported to be 14% and was positively associated with male sex, parental smoking and eczema. In contrast, parental eczema was the only identified predictor of childhood eczema risk.CONCLUSIONS: The lifetime prevalence of asthma in primary schoolchildren was 14% in this survey, approximately half the prevalence of eczema. We report diverging prevalences in relation to previous studies in our locality, and different risk factors for asthma and eczema. These findings suggest that asthma and eczema are unlikely to have a common origin.

U2 - 10.1136/bmjopen-2015-008446

DO - 10.1136/bmjopen-2015-008446

M3 - Article

C2 - 26059525

VL - 5

JO - BMJ Open

JF - BMJ Open

SN - 2044-6055

IS - 6

M1 - e008446

ER -