Figure 2-189. Distribution and number of silicosis cases for all three reporting SENSOR States (Michigan, New Jersey, Ohio) by source of report, 1993-1997. During 1993-1997, hospitals were the largest source of reports (74.8%) for identifying the largest proportion of confirmed cases of silicosis (74.8%), followed by health care professionals (15.6%). (Sources: Rosenman et al. [2002b]; Socie and Migliozzi [2002]; Valiante and Schill [2002b]; Filios [2002b].)