Sensitisation to occupational allergens in bakers' asthma and rhinitis: a case-referent study.

Objectives: To study the importance of sensitisation to occupational allergens for the occurrence of asthma and rhinitis in bakers.

Methods: This is a nested clinical case-referent study of bakers based on a cohort of Swedish former bakery students. Cases were asthmatic ( n=25) or rhinitic bakers ( n=20).