摘要：This paper reviews zero-inated count models and applies themto modelling annual trends in incidences of occupational allergic asthma,dermatitis and rhinitis in France. Based on the data collected from 2001 to2009, the study uses the incidence rate ratios (IRR) as percentage of changesin incidences and plots them as function of the years to obtain trends. Theinvestigation reveals that the trend is decreasing for asthma and rhinitis, andincreasing for dermatitis, and that there is a possible positive associationbetween the three diseases.
关键词：Incidence in occupational allergic diseases; trend; zero-in;ated;count models.
