Derivation
variable: weight (table[s]: art_arte, 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, ncd_combined, css_fis1, arkk_arkq, ves_vese)
variable: weight2 (table[s]: art_arto, art_artx, tb_tbi)
variable: wt (table[s]: cpt_f3)
variable: bweight (table[s]: crs_birth, crs_bfup)
variable: a_wt (table[s]: gap_combined)
variable: weigf/weigs (table[s]: sts_fup, sts_stsf, sts_stsp)
variable: weightf/weights (table[s]: kduk_kduq, phdk_phdq)
Weight from STS, KDU and PHD were collected twice so average of the 2 readings is calculated. All weight variables from the various tables are in kg so if necessary are renamed to weight.