Questionnaire d’évaluation du niveau de connaissances sur l’asthme professionnel

Abstract

Screening for occupational asthma is should still be promoted. In order to improve the efficiency of any educational intervention we need to evaluate the patient's knowledge of the disease. The aims were to evaluate objectively the knowledge level of Tunisian asthmatic patients concerning occupational asthma using a self-questionnaire in Arabic Tunisian dialect, then to conduct a validation process of the questionnaire. We followed De Vellis's rules during all stages of redaction of the self-questionnaire. It contained 18items allocated in 4dimensions: knowledge about asthma; knowledge about occupational asthma; prognosis of occupational asthma; prevention of occupational asthma. A pre-test was conducted on 18asthmatic patients to assess the clarity and comprehensibility of all the questions. The questionnaire was then applied to 107asthmatic patients. The statistical analysis proved the discrimination value in 14 of the 18items. The internal consistency of the questionnaire was demonstrated by a KR20 index of 0.731. Factorial analysis of the principal components showed the reliability of the questionnaire and of its uni-dimensional structure. The statistical findings proved the positive correlation between the mean scores of all its dimensions. Using this questionnaire in daily practice should inform health care providers about the level of knowledge of occupational asthma in the targeted population and improve the effectiveness of any further educational intervention.