AIM: To estimate the incidence rates for asthma, rhinitis and eczema symptoms and to investigate the importance of different influential factors for the incidence of these symptoms. METHODS: The Dampness in Building and Health study commenced in the year 2000 in Värmland, Sweden with a parental questionnaire based on an ISAAC protocol to all children in the age of 1-6 years. Five years later a follow-up questionnaire was sent to the children that were 1-3 years at baseline. In total, 4779 children (response rate = 73%) participated in both surveys and constitute the study population in this cohort study. RESULTS: The 5-year incidence of doctor-diagnosed asthma was 4.9% (95% CI 4.3-5.3), rhinitis was 5.7% (5.0-6.4) and eczema was 13.4% (12.3-14.5). However, incidence rates strongly depend on the health status of the baseline population. Risk factors for incident asthma were male gender and short period of breast-feeding. Allergic symptoms in parents were also a strong risk factor for incident asthma, as well as for rhinitis and eczema. CONCLUSION: When comparing incident rates of asthma between different studies it is important to realize that different definitions of the healthy baseline population will give rise to different incident rates.
AIM: To estimate the incidence rates for asthma, rhinitis and eczema symptoms and to investigate the importance of different influential factors for the incidence of these symptoms. METHODS: The Dampness in Building and Health study commenced in the year 2000 in Värmland, Sweden with a parental questionnaire based on an ISAAC protocol to all children in the age of 1-6 years. Five years later a follow-up questionnaire was sent to the children that were 1-3 years at baseline. In total, 4779 children (response rate = 73%) participated in both surveys and constitute the study population in this cohort study. RESULTS: The 5-year incidence of doctor-diagnosed asthma was 4.9% (95% CI 4.3-5.3), rhinitis was 5.7% (5.0-6.4) and eczema was 13.4% (12.3-14.5). However, incidence rates strongly depend on the health status of the baseline population. Risk factors for incident asthma were male gender and short period of breast-feeding. Allergic symptoms in parents were also a strong risk factor for incident asthma, as well as for rhinitis and eczema. CONCLUSION: When comparing incident rates of asthma between different studies it is important to realize that different definitions of the healthy baseline population will give rise to different incident rates.
Authors: Darcy Güngör; Perrine Nadaud; Concetta C LaPergola; Carol Dreibelbis; Yat Ping Wong; Nancy Terry; Steve A Abrams; Leila Beker; Tova Jacobovits; Kirsi M Järvinen; Laurie A Nommsen-Rivers; Kimberly O O'Brien; Emily Oken; Rafael Pérez-Escamilla; Ekhard E Ziegler; Joanne M Spahn Journal: Am J Clin Nutr Date: 2019-03-01 Impact factor: 7.045
Authors: Kristina Bröms; Dan Norbäck; Margaretha Eriksson; Claes Sundelin; Kurt Svärdsudd Journal: BMC Public Health Date: 2013-08-16 Impact factor: 3.295
Authors: Ali M S Alshehri; Ohood A Assiri; Afnan M S Alqarni; Muhammed A Y Alkhairi; Mohammed A A Alzahrani; Sarah H A Alshehri; Nada A A Alshehri; Ahmed Y Abouelyazid Journal: J Family Med Prim Care Date: 2021-07-02