Derivation
variable: examdate (table[s]: css_fis1)
variable: intdate (table[s]: art_artn, arv_amf, arv_scf, bis_mother, fhs_tktaik, fhs_tktcik, iis_mother, gp_gpform, css_sei, tb_tbh, tb_tboto2007, tb_tbx, tb_tbxto2007, tbold_tbpart1, tb_tbs, tb_tbs5, tmt_tmt1, art_arto, art_artx, tb_tbi, cpt_f3, crs_birth, crs_bfup)
variable: epdate (table[s]: art_arte)
variable: intdate3 (table[s]: tb_tbi)
variable: a_intdt (table[s]: gap_combined)
variable: comdate (table[s]: ncd_combined)
variable: consdate (table[s]: ves_vese)
The date of measurement variable for the various tables is renamed to examdate