Derivation
variable: cpchtrt_s [treatment change to streptomycin in continuation phase] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2)
variable: cpchtrt_h [treatment change to isoniazid in continuation phase] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2)
variable: cpchtrt_r [treatment change to rifampicin in continuation phase] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2)
variable: cpchtrt_z [treatment change to pyrazinamide in continuation phase] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2)
variable: cpchtrt_t [treatment change to thiacetazone in continuation phase] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2)
variable: cpchtrt_e [treatment change to ethambutol in continuation phase] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2)
variable: cpchtrt_f [treatment change to fatol in continuation phase] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2)
variable: cpchtrt_rh [treatment change to rinfinah in continuation phase] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2)