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.

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

     This data frame contains the following columns:

           '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'

_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)

