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This surveillance report examines trends in selected pneumoconioses in the U.S. for 1968-2005 and their relationship with past indicators of extent of exposure. Numbers of deaths with asbestosis, silicosis, and coal workers' pneumoconiosis (CWP) were tabulated by time and age at death. Worker monitoring CWP prevalence data were tabulated by tenure group. Information on indicators of extent and intensity of exposure were obtained from various sources. Asbestosis deaths from 1968-2005 closely followed the historical trend in asbestos consumption, and appear to be declining in most age groups. Given appropriate exposure control, asbestosis could be eliminated by 2050. Silicosis deaths decreased substantially from 1968-2005, but levelled off after 1998 in all age groups, indicating a continuing occupational risk. In the anthracite coal region, CWP mortality has been declining rapidly. If there is no resurgence in the industry, CWP could disappear in that region by 2030. In the much larger bituminous region, deaths have declined over time but may be increasing among younger individuals. In addition, although CWP prevalence in working coal miners declined substantially from 1970 to 1994, it increased from 1995 to 2006. This indicates the need for increased vigilance in dust control in underground coal mining.

Trends in pneumoconiosis mortality and morbidity for the United States, 1968–2005, and relationship with indicators of extent of exposure