nickel                 package:ISwR                 R Documentation

_N_i_c_k_e_l _s_m_e_l_t_e_r_s _i_n _S_o_u_t_h _W_a_l_e_s

_D_e_s_c_r_i_p_t_i_o_n:

     The data concern a cohort of nickel smelting workers in South
     Wales, with information on exposure, follow-up period, and cause
     of death.

_U_s_a_g_e:

     nickel

_F_o_r_m_a_t:

     A data frame containing 679 observations of the following 7
     variables:

     '_i_d' subject identifier (numeric).

     '_i_c_d' ICD cause of death if dead, 0 otherwise (numeric).

     '_e_x_p_o_s_u_r_e' exposure index for workplace (numeric) 

     '_d_o_b' date of birth (numeric). 

     '_a_g_e_1_s_t' age at first exposure (numeric). 

     '_a_g_e_i_n' age at start of follow-up (numeric). 

     '_a_g_e_o_u_t' age at end of follow-up (numeric). 

_D_e_t_a_i_l_s:

     Taken from the Epi package by Bendix Carstensen et al. For
     comparison purposes, England and Wales mortality rates (per
     1,000,000 per annum) from lung cancer (ICDs 162 and 163), nasal
     cancer (ICD 160), and all causes, by age group and calendar
     period, are supplied in the data set 'ewrates'.

_S_o_u_r_c_e:

     N.E. Breslow and N. Day (1987). _Statistical Methods in Cancer
     Research. Volume II: The Design and Analysis of Cohort Studies_,
     IARC Scientific Publications, Lyon.

