PMID- 19368704 OWN - NLM STAT- MEDLINE DCOM- 20090611 LR - 20211020 IS - 1471-2466 (Electronic) IS - 1471-2466 (Linking) VI - 9 DP - 2009 Apr 15 TI - Prediction and treatment of asthma in preschool children at risk: study design and baseline data of a prospective cohort study in general practice (ARCADE). PG - 13 LID - 10.1186/1471-2466-9-13 [doi] AB - BACKGROUND: Asthma is a difficult diagnosis to establish in preschool children. A few years ago, our group presented a prediction rule for young children at risk for asthma in general practice. Before this prediction rule can safely be used in practice, cross-validation is required. In addition, general practitioners face many therapeutic management decisions in children at risk for asthma. The objectives of the study are: (1) identification of predictors for asthma in preschool children at risk for asthma with the aim of cross-validating an earlier derived prediction rule; (2) compare the effects of different treatment strategies in preschool children. DESIGN: In this prospective cohort study one to five year old children at risk of developing asthma were selected from general practices. At risk was defined as 'visited the general practitioner with recurrent coughing (>or= 2 visits), wheezing (>or=1) or shortness of breath (>or=1) in the previous 12 months'. All children in this prospective cohort study will be followed until the age of six. For our prediction rule, demographic data, data with respect to clinical history and additional tests (specific immunoglobulin E (IgE), fractional exhaled nitric oxide (FENO), peak expiratory flow (PEF)) are collected. History of airway specific medication use, symptom severity and health-related quality of life (QoL) are collected to estimate the effect of different treatment intensities (as expressed in GINA levels) using recently developed statistical techniques. In total, 1,938 children at risk of asthma were selected from general practice and 771 children (40%) were enrolled. At the time of writing, follow-up for all 5-year olds and the majority of the 4-year olds is complete. The total and specific IgE measurements at baseline were carried out by 87% of the children. Response rates to the repeated questionnaires varied from 93% at baseline to 73% after 18 months follow-up; 89% and 87% performed PEF and FENO measurements, respectively. DISCUSSION: In this study a prediction rule for asthma in young children, to be used in (general) practice, will be cross-validated. Our study will also provide more insight in the effect of treatment of asthma in preschool children. FAU - van Wonderen, Karina E AU - van Wonderen KE AD - Department of General Practice, Academic Medical Center, Amsterdam, the Netherlands. k.vanwonderen@amc.uva.nl FAU - van der Mark, Lonneke B AU - van der Mark LB FAU - Mohrs, Jacob AU - Mohrs J FAU - Geskus, Ronald B AU - Geskus RB FAU - van der Wal, Willem M AU - van der Wal WM FAU - van Aalderen, Wim M C AU - van Aalderen WM FAU - Bindels, Patrick J E AU - Bindels PJ FAU - ter Riet, Gerben AU - ter Riet G LA - eng PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20090415 PL - England TA - BMC Pulm Med JT - BMC pulmonary medicine JID - 100968563 RN - 0 (Anti-Asthmatic Agents) SB - IM MH - Anti-Asthmatic Agents/*therapeutic use MH - Asthma/*diagnosis/*drug therapy/epidemiology MH - Child, Preschool MH - Family Practice/*methods MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Netherlands/epidemiology MH - Peak Expiratory Flow Rate/physiology MH - Prevalence MH - Prognosis MH - Prospective Studies MH - Quality of Life MH - Risk Factors MH - Spirometry PMC - PMC2678979 EDAT- 2009/04/17 09:00 MHDA- 2009/06/12 09:00 PMCR- 2009/04/15 CRDT- 2009/04/17 09:00 PHST- 2008/12/08 00:00 [received] PHST- 2009/04/15 00:00 [accepted] PHST- 2009/04/17 09:00 [entrez] PHST- 2009/04/17 09:00 [pubmed] PHST- 2009/06/12 09:00 [medline] PHST- 2009/04/15 00:00 [pmc-release] AID - 1471-2466-9-13 [pii] AID - 10.1186/1471-2466-9-13 [doi] PST - epublish SO - BMC Pulm Med. 2009 Apr 15;9:13. doi: 10.1186/1471-2466-9-13.