Comprehensive Respiratory Health Questionnaire

The study consisted of a booklet containing the OLIN-Q followed by the GA²LEN-Q. The OLIN-Q has been used in many studies in the Nordic and the Baltic countries, prominently the FinEsS (Finland, Estonia, Sweden) studies, comparative studies of airway diseases 6 (link), 17 (link), 18 (link)). It was developed from the British Medical Research Council Q (BMRC-Q). The OLIN-Q contains questions on asthma, rhinitis, chronic bronchitis/COPD/emphysema, respiratory symptoms, use of asthma medication and possible determinants of disease, such as smoking habit, occupation and family history of disease. The OLIN-Q and variants of it (19 (link)) have been validated against physiological variables including bronchial hyperresponsiveness (12 (link), 20 (link)). To this Q, detailed questions about occupation, occupational exposure, socio-economic conditions and health status were added. The Swedish version of the GA²LEN-Q is a variant of the ECRHS-Q (13 (link), 21 (link)) with additional questions concerning mainly rhinitis, chronic sinusitis and eczema. Questions on rhinitis and sinusitis in the GA²LEN-Q originate from the Allergic Rhinitis and its Impact on Asthma initiative (21 (link)).