| Titre : | Non-responders to a postal questionnaire on respiratory symptoms and diseases. (1999) |
| Auteurs : | E. RONMARK ; B. LUNDBACK ; A. LUNDQVIST ; L. NYSTROM ; Respiratory Epidemiology Unit. Department of Occupational Health. National Institute for Working Life. Umea. SWE ; The Olin-study group. Department of Medicine. Central Hospital of Norrbotten. Lulea Boden. SWE |
| Type de document : | Article |
| Dans : | European journal of epidemiology (vol. 15, n° 3, 1999) |
| Pagination : | 293-299 |
| Langues: | Anglais |
| Mots-clés : | Asthme ; Homme ; Dépistage ; Suède ; Europe ; Surveillance épidémiologique ; Epidémiologie ; Prévalence ; Questionnaire ; Appareil respiratoire [pathologie] ; Bronchopneumopathie obstructive |
| Résumé : | [BDSP. Notice produite par INIST EFlDR0xG. Diffusion soumise à autorisation]. Only few data have been published about non-responders in epidemiological studies on respiratory diseases. The aim of this study was to examine the characteristics of the non-responders and the reasons for non-response in a survey of respiratory health. All 9132 subjects, born 1925-1926,1940-1941,1955-1956 and 1970-1971 and living in eight representative areas in Norrbotten, Sweden, were invited to a prevalence study on asthma, chronic bronchitis and respiratory symptoms. The response rate was 85%. A sample of the non-responders from the cross-sectional postal questionnaire study was contacted by telephone and interviewed using the same questionnaire as had been used in the postal survey. Of the 1397 non-responders a stratified sample of 182 subjects were selected for this study and 144 agreed to participate. The response rate was increasing by increasing age. The main reason for non-response was that the subjects had forgotten to mail the questionnaire, lack of interest or lack of time. There were significantly higher proportions of current smokers and manual workers among the non-responders. (...) |
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