Table 2.

RR for all causes of mortality by age at risk

Study		Age at Hire
	<55	55-64	65-74	>= 75
Fox and Collier (1976)	0.64	0.79	0.96	0.60
McMichael et al. (1976)	0.81	0.89	0.95	1.13
Delzell and Monson (1981)[10]	0.80	0.90	0.90	1.00