Work-related asthma: prevalence estimates by sex, age and smoking habits in a community sample.

SETTING Two-phased study of a general population sample in Norway. OBJECTIVE To assess the prevalence of work-related asthma by sex, age and smoking habits. DESIGN The first phase, a mail questionnaire on asthma to a random sample of the general population of Hordaland County, Norway, gave a 90% response. A stratified sample of the responders (n = 1512… CONTINUE READING