obese                  package:drm                  R Documentation

_O_b_e_s_i_t_y _a_m_o_n_g _M_u_s_c_a_t_i_n_e _c_h_i_l_d_r_e_n

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

     Data of the completers concerning the presence or abscence of
     obesity in five age cohorts in Muscatine, Ohio, measured
     repeatedly in -77, -79 and -81.

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

     data(obese)

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

     A data frame with 5310 observations on the following 5 variables.

     _i_d identification number of a child

     _o_b_e_s_e a binary indicator of obesity

     _s_e_x a factor with levels 'male' 'female'

     _y_e_a_r year of measurement

     _a_g_e a factor indicating age cohorts from '(5,7]' to '(17,19]'

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

     Woolson RF and Clarke WR. Analysis of categorical incomplete
     longitudinal data. _Journal of the Royal Statistical Society
     Series A_, 1984; 147:87-99.

     http://www.biostat.harvard.edu/~fitzmaur/ala/obesity.txt

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

     Ekholm A, Skinner C. The Muscatine children's obesity data
     reanalysed using pattern mixture models. _Applied Statistics_
     1998; 47:251-263.

     Ekholm A, McDonald JW, Smith PWF.  Association  models for  a 
     multivariate  binary  response. _Biometrics_ 2000; 56:712-718.

