hepatitis            package:surv2sample            R Documentation

_C_h_r_o_n_i_c _A_c_t_i_v_e _H_e_p_a_t_i_t_i_s _D_a_t_a

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

     Survival data from a randomised clinical trial of the drug
     prednisolone for chronic active hepatitis.

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

     data(hepatitis)

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

     A data frame with 44 observations, with the following 3 variables:

     '_t_r_e_a_t_m_e_n_t' treatment type (1 = drug prednisolone, 2 = untreated
          control group)

     '_t_i_m_e' time following admission to the trial, in months

     '_s_t_a_t_u_s' censoring status (1 = death, 0 = censored)

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

     Collett, D. (2003) _Modelling Survival Data in Medical Research.
     Second Edition._ Chapman & Hall/CRC. (Appendix D.1, p. 363)
      <URL:
     http://www.crcpress.com/e_products/downloads/webdownload/C3251/C3251.zip>

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

     data(hepatitis)
     plot(survfit(Surv(time, status) ~ treatment, data = hepatitis))

