eba1977              package:ISwR              R Documentation(utf8)

_L_u_n_g _c_a_n_c_e_r _i_n_c_i_d_e_n_c_e _i_n _f_o_u_r _D_a_n_i_s_h _c_i_t_i_e_s _1_9_6_8-_1_9_7_1

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

     This data set contains counts of incident lung cancer cases and
     population size in four neighbouring Danish cities by age group.

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

     eba1977

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

     A data frame with 24 observations on the following 4 variables:

     '_c_i_t_y' a factor with levels 'Fredericia', 'Horsens', 'Kolding',
          and 'Vejle'.

     '_a_g_e' a factor with levels '40-54', '55-59', '60-64', '65-69',
          '70-74', and '75+'.

     '_p_o_p' a numeric vector, number of inhabitants.

     '_c_a_s_e_s' a numeric vector, number of lung cancer cases.

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

     These data were "at the center of public interest in Denmark in
     1974", according to Erling Andersen's paper. The city of
     Fredericia has a substantial petrochemical industry in the harbour
     area.

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

     E.B. Andersen (1977), Multiplicative Poisson models with unequal
     cell rates,  _Scandinavian Journal of Statistics_, 4:153-158.

_R_e_f_e_r_e_n_c_e_s:

     J. Clemmensen et al. (1974), _Ugeskrift for Laeger_, pp.
     2260-2268.

