lep                   package:Epi                   R Documentation

_A_n _u_n_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 _l_e_p_r_o_s_y _i_n_c_i_d_e_n_c_e

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

     The 'lep' data frame has 1370 rows and 7 columns. This was an
     unmatched case-control study in which incident cases of leprosy in
     a region of N. Malawi were compared with population controls.

_A_r_g_u_m_e_n_t_s:

      id: subject identifier: a numeric vector 

       d: case/control status: a numeric vector (1=case, 0=control) 

     age: a factor with levels '5-9'  '10-14'  '15-19'  '20-24' 
          '25-29'  '30-44'  '45+'  

     sex: a factor with levels 'male'  'female'  

     bcg: presence of vaccine scar, a factor with levels 'no'  'yes'  

  school: schooling, a factor with levels 'none'  '1-5yrs'  '6-8yrs' 
          'sec/tert'  

   house: housing, a factor with levels 'brick'  'sunbrick'  'wattle' 
          'temp'  

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

     This data frame contains the following columns:

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

     The study is described in more detail in Clayton and Hills,
     Statistical Models in Epidemiology, Oxford University Press,
     Oxford:1993.

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

     data(lep)

