While there are many advantages of self-employment, self-employed workers may have less stable income [Mirabelli et al., 2003] and may be exposed to work hazards for longer hours [Personick and Windau, 1995]. Self-employed workers may also have less stringent safety and health practices [Mirabelli et al., 2003] and are not covered by OSHA regulations and standards (Public Law 91–596). When considering the toll of machines on work-related fatal injuries and focusing prevention efforts, the disproportionate share of fatal injuries among the self-employed deserves continued attention.