BACKGROUND: The association between birthweight and asthma, eczema and rhinoconjunctivitisis conflicting. AIMS: To examine the association between birthweight and symptoms of asthma, eczema and rhinoconjunctivitis. METHODS: Parents or guardians of children aged 6–7 yr completed written questionnaires about symptoms of asthma, rhinoconjunctivitis and eczema, and several risk factors, including birthweight. RESULTS: There were 162,324 children from 60 centres in 26 countries. Low birthweight(<2.5 kg) was associated with an increased risk of symptoms of asthma (current wheeze odds ratio = 1.20; 95% confidence interval = 1.12–1.30). Low birthweight was associated with a lower risk of eczema ever. Low birthweight was not associated with rhinoconjunctivitis. Large babies (birthweight ≥4.5 kg) were not associated with any of these outcomes. CONCLUSIONS: This study has confirmed that low birthweight is a risk factor for symptoms of asthma, but not for rhinoconjunctivitis. The findings for eczema are equivocal.
BACKGROUND: The association between birthweight and asthma, eczema and rhinoconjunctivitisis conflicting. AIMS: To examine the association between birthweight and symptoms of asthma, eczema and rhinoconjunctivitis. METHODS: Parents or guardians of children aged 6–7 yr completed written questionnaires about symptoms of asthma, rhinoconjunctivitis and eczema, and several risk factors, including birthweight. RESULTS: There were 162,324 children from 60 centres in 26 countries. Low birthweight(<2.5 kg) was associated with an increased risk of symptoms of asthma (current wheeze odds ratio = 1.20; 95% confidence interval = 1.12–1.30). Low birthweight was associated with a lower risk of eczema ever. Low birthweight was not associated with rhinoconjunctivitis. Large babies (birthweight ≥4.5 kg) were not associated with any of these outcomes. CONCLUSIONS: This study has confirmed that low birthweight is a risk factor for symptoms of asthma, but not for rhinoconjunctivitis. The findings for eczema are equivocal.
Authors: Charlotte E Rutter; Richard J Silverwood; M Innes Asher; Philippa Ellwood; Neil Pearce; Luis Garcia-Marcos; David P Strachan Journal: World Allergy Organ J Date: 2020-07-02 Impact factor: 4.084
Authors: Richard J Silverwood; Charlotte E Rutter; Edwin A Mitchell; M Innes Asher; Luis Garcia-Marcos; David P Strachan; Neil Pearce Journal: Clin Exp Allergy Date: 2019-01-23 Impact factor: 5.018
Authors: Charlotte E Rutter; Richard J Silverwood; Hywel C Williams; Philippa Ellwood; Innes Asher; Luis Garcia-Marcos; David P Strachan; Neil Pearce; Sinéad M Langan Journal: J Invest Dermatol Date: 2018-12-04 Impact factor: 8.551