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- Alm, Bernt, 1951, et al.
(författare)
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Early protective and risk factors for allergic rhinitis at age 4½ yr.
- 2011
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Ingår i: Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology. - : Wiley. - 1399-3038 .- 0905-6157. ; 22:4, s. 398-404
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Tidskriftsartikel (refereegranskat)abstract
- Allergic heredity plays a major role in the development of allergic rhinitis. In addition the introduction of food may influence the risk of subsequent allergic disease. The aim of this study was to analyse early risk factors and protective factors for allergic rhinitis at preschool age. Data were obtained from a prospective, longitudinal study of a cohort of children born in the region of western Sweden in 2003 and 8,176 families (50% of the birth cohort) were randomly selected. The parents answered questionnaires at 6 and 12 months and at 4½ yr of age. The response rate at 4½ yr was 4,496, i.e. 83% of the 5,398 questionnaires distributed at 4½ yr. At 4½ yr of age, 5.5% reported symptoms of allergic rhinitis during the last year. In the multivariate analysis, independent risk factors for allergic rhinitis were: allergic sensitisation to food allergens at 4½ yr (OR 10.21; 95% confidence interval 4.22-24.73), recurrent wheeze at 4½ yr (3.33; 1.56-7.10), doctor-diagnosed eczema at 4½ yr (2.72; 1.62-4.55), parental rhinitis (2.21; 1.39-3.53), eczema first year (1.97; 1.19-3.26) and male gender (1.82; 1.13-2.94). The risk was reduced with fish introduction before 9 months (0.49; 0.29-0.82). In conclusion, we found that previous and present allergic disease, heredity and male gender increased the risk of allergic rhinitis at 4½ yr of age. The introduction of fish before the age of 9 months reduced the risk.
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| 2. |
- Goksör, Emma, 1974, et al.
(författare)
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Prenatal paracetamol exposure and risk of wheeze at preschool age*
- 2011
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Ingår i: Acta paediatrica (Oslo, Norway : 1992). - : Wiley. - 1651-2227 .- 0803-5253.
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To analyse the association between prenatal paracetamol exposure and preschool wheeze. Methods: Data were obtained from a prospective, longitudinal study of a cohort of children born in the region of western Sweden in 2003; 8176 families were randomly selected. The parents answered questionnaires at 6 and 12months and at 4.5years of age. The response rate was 55%, i.e. 4496 of the 5398 questionnaires distributed at 4.5years (83%). Inhaled corticosteroid (ICS) treated wheeze during the last year was regarded as a proxy for doctor-diagnosed asthma. Episodic viral wheeze was defined as wheezing only with viral infections and multiple-trigger wheeze as wheezing also in between infections. Results: In the multivariate analysis, the risk of ICS-treated wheeze was increased by paracetamol (OR 1.6; 95% CI 1.01-2.6). Within the ICS-treated group, the effect was significant for multiple-trigger wheeze (OR 2.4; 1.2-4.8) but not for episodic viral wheeze (OR 1.1; 0.5-2.3). Conclusion: Prenatal paracetamol exposure was an independent risk factor for ICS-treated wheeze at preschool age, especially among children with ICS-treated multiple-trigger wheeze. Although the analysis adjusted for e.g. maternal asthma and antibiotic use, the possibility of residual confounding by maternal indication (respiratory illness) should be acknowledged.
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| 3. |
- Goksör, Emma, 1974, et al.
(författare)
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Preschool wheeze - impact of early fish introduction and neonatal antibiotics.
- 2011
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Ingår i: Acta paediatrica (Oslo, Norway : 1992). - : Wiley. - 1651-2227 .- 0803-5253.
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Tidskriftsartikel (refereegranskat)abstract
- Aim: The aim of this study was to analyse the risk factors for preschool wheeze with special reference to the early introduction of fish and early antibiotic treatment. To avoid reverse causation regarding antibiotics, we focused on the influence of broad-spectrum antibiotics given during the first week of life. Methods: Data were obtained from a prospective, longitudinal study of a cohort of children born in western Sweden where 50% of the birth cohort was randomly selected. The parents answered questionnaires at 6 and 12months and at 4.5years of age. The response rate at 4.5years was 83% (4496 of 5398 questionnaires distributed). Results: In the multivariate analysis, broad-spectrum antibiotics in the first week increased the risk of recurrent wheeze (≥3 episodes) during the last 12months at age 4.5years (adjusted OR 2.2; 95% CI 1.3-3.8) and multiple-trigger wheeze (aOR, 2.8; 1.3-6.1). The introduction of fish before the age of 9months reduced the risk of recurrent wheeze (aOR, 0.6; 0.4-0.8). Conclusion: Treatment with broad-spectrum antibiotics during the first week of life increased the risk of recurrent wheeze and multiple-trigger wheeze at preschool age. The early introduction of fish reduced the risk of recurrent wheeze.
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