schizophrenia2             package:HSAUR             R Documentation

_S_c_h_i_z_o_p_h_r_e_n_i_a _D_a_t_a

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

     Though disorder and early onset of schizophrenia.

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

     data("schizophrenia2")

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

     A data frame with 220 observations on the following 4 variables.

     '_s_u_b_j_e_c_t' the patient ID, a factor with levels '1' to '44'.

     '_o_n_s_e_t' the time of onset of the disease,  a factor with levels '<
          20 yrs' and  '> 20 yrs'.

     '_d_i_s_o_r_d_e_r' whether thought disorder was 'absent' or 'present', the
          response variable.

     '_m_o_n_t_h' month after hospitalisation.

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

     The data were collected in a follow-up study of women patients
     with schizophrenia. The binary response recorded at 0, 2, 6, 8 and
     10 months after hospitalisation was thought disorder (absent or
     present). The single covariate is the factor  indicating whether a
     patient had suffered early or late onset of her condition (age of
     onset less than 20 years or age of onset 20 years or above). The
     question of interest is whether the course of the illness differs
     between patients with early and late onset?

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

     Davis (2002), _Statistical Methods for the Analysis of  Repeated
     Measurements_, Springer, New York.

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

       data("schizophrenia2", package = "HSAUR")
       mosaicplot(xtabs( ~ onset + month + disorder, data = schizophrenia2))

