ratetables             package:survival             R Documentation

_C_e_n_s_u_s _D_a_t_a _S_e_t_s _f_o_r _t_h_e _E_x_p_e_c_t_e_d _S_u_r_v_i_v_a_l _a_n_d _P_e_r_s_o_n _Y_e_a_r_s _F_u_n_c_t_i_o_n_s

_D_e_s_c_r_i_p_t_i_o_n:

     Census data sets for the expected survival and person years
     functions

_U_s_a_g_e:

     data(ratetables)
     survexp.uswhite<-survexp.usr[,,"white",]

_D_e_t_a_i_l_s:

     _u_s total United States population, by age and sex, 1960 to 1980.

     _u_s_w_h_i_t_e United States white population, by age and sex, 1950 to
          1980. This is no longer included, but can be extracted from
          'survexp.usr' as shown above.

     _u_s_r United States population, by age, sex and race, 1960 to 1980. 
          Race is white, nonwhite, or black.  For 1960 and 1970 the
          black population values were not reported separately, so the
          nonwhite values were used.

     _m_n total Minnesota population, by age and sex, 1970 and 1980.

     _m_n_w_h_i_t_e Minnesota white population, by age and sex, 1960 to 1980.

     _f_l total Florida population, by age and sex, 1970 and 1980.

     _f_l_r Florida population, by age, sex and race, 1970-1980.  Race is
          white, nonwhite, or black.  For 1970 the black population
          values were not reported separately, so the nonwhite values
          were used.

     _a_z total Arizona population, by age and sex, 1970 and 1980.

     _a_z_r Arizona population, by age, sex and race, 1970-1980.  Race is
          white versus nonwhite.  For 1970 the nonwhite population
          values were not reported separately. In order to make the
          rate table be a matrix, the 1980 values were repeated. 
          (White and non-white values are quite different).

     Each of these tables contains the daily hazard rate for a matched
     subject from the population, defined as -log(1-q)/365.24 where q
     is the 1 year probability of death as reported in the original
     tables. For age 25 in 1970, for instance, p = 1-q is is the
     probability that a subject who becomes 25 years of age in 1970
     will achieve his/her 26th birthday. The tables are recast in terms
     of hazard per day entirely for computational convenience. (The
     fraction .24 in the denominator is based on 24 leap years per
     century.)

     Each table is stored as an array, with additional attributes, and
     can be subset and manipulated as standard S arrays. Interpolation
     between calendar years is done "on the fly" by the survexp
     routine. 

     Some of the deficiencies, e.g. 1970 Arizona non-white, are a
     result of local conditions.  The data probably exists, but we
     don't have a copy it in the library.

     The tables have  been augmented to contain extrapolated values for
     1990 and 2000.  The details can be found in Mayo Clinic
     Biostatistics  technical report 63 at <URL:
     http://www.mayo.edu/hsr/techrpt.html>

