Grouped data from the Montana Smelter Workers Study (free format) Data Items 1 Age Group 1 to 4 2 Period Calendar Period 3 Hire Period of hire 4 Arsenic Arsenic Exposure (1 to 4) 5 PY Person Years 6 D_all Number of Deaths -- All Causes 7 D_res_ca Number of Deaths -- Respiratory Cancer 8 D_all_ca Number of Deaths -- All Cancers 9 D_c_dis Number of Deaths -- Circulatory Disease ----------- Taken from Appendix V in Breslow and Day volume II, pp 363-365. Design and Conduct of Study is described in Appendix 1E pp 349-351.