Matched case-control study      package:epicalc      R Documentation

_D_a_t_a_s_e_t_s _o_n _a _m_a_t_c_h_e_d _c_a_s_e-_c_o_n_t_r_o_l _s_t_u_d_y _o_f _e_s_o_p_h_a_g_e_a_l _c_a_n_c_e_r

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

     Two different datasets for a matched case-control studies with 1
     case : 1 controls and 1 case : varying number of controls (from 1
     to 6).

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

     data(VC1to1)

     data(VC1to6)

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

     A data frame with 119 observations on the following 5 variables.

     '_m_a_t_s_e_t' a numeric vector indicating matched set number from 1 to
          26

     '_c_a_s_e' a numeric vector: 1=case, 0=control

     '_s_m_o_k_i_n_g' a numeric vector: 1=smoker, 0=non-smoker

     '_r_u_b_b_e_r' a numeric vector: 1=exposed, 0=never exposed to rubber
          industry

     '_a_l_c_o_h_o_l' a numeric vector: 1=drinker, 0=non-drinker

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

     Chongsuvivatwong,  V. 1990 A case-control study of esophageal
     cancer  in Southern Thailand.  _J Gastro Hep_ *5*:391-394.

_S_e_e _A_l_s_o:

     'infert' in the standard R datasets.

_E_x_a_m_p_l_e_s:

     data(VC1to6)
     use(VC1to6)
     des()
     matchTab(case, alcohol, matset)

