Open AccessO01 ‐ Validation of asthma and eczema in population‐based Swedish health registers
Author(s) -
Örtqvist Anne K,
Lundholm Cecilia,
Wettermark Björn,
Ludvigsson Jonas F,
Ye Weimin,
Almqvist Catarina
Publication year - 2014
Publication title -
clinical and translational allergy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.979
H-Index - 37
ISSN - 2045-7022
DOI - 10.1186/2045-7022-4-s1-o1
Subject(s) - medicine , asthma , pediatrics , epidemiology , asthma medication , population , medical diagnosis , medical record , allergy , environmental health , immunology , pathology
Results PPV for asthma medication as a proxy for a doctor diagnosis of asthma was 0.68 (95%CI: 0.64-0.72) in pre-school children (0-4.5 years) and 0.89 (95%CI: 0.85-0.92) in school-age children (>4.5-17 years). The corresponding PPV for predefined criteria of asthma was 0.75 (95%CI: 0.70-0.78) and 0.94 (95%CI: 0.91- 0.96) in pre-school children and school-age children respectively. Almost all (99%) of school-age children and 78% of pre-school children with an asthma diagnosis in the NPR were verified as asthmatics. PPV for eczema medication as a proxy for an eczema diagnosis was estimated to 0.45 (95% CI: 0.380.51) in children 0-17 years. Conclusion Asthma medication is the SPDR is a suitable proxy for asthma in older children; the same approach is insufficient for eczema. Furthermore, the quality of asthma diagnoses in the NPR is high. This validation study of two Swedish registers opens for future large nation-wide studies on asthma.