******************************************************************
*STATA syntax code for the computation of index*
*values with the Hungarian value set (TTO)*
******************************************************************;

gen disut_mo = .
replace disut_mo = 0 if missing(disut_mo) & mobility == 1
replace disut_mo = 0.022 if missing(disut_mo) & mobility == 2
replace disut_mo = 0.648 if missing(disut_mo) & mobility == 3

gen disut_sc = .
replace disut_sc = 0 if missing(disut_sc) & selfcare == 1
replace disut_sc = 0.051 if missing(disut_sc) & selfcare == 2
replace disut_sc = 0.355 if missing(disut_sc) & selfcare == 3

gen disut_ua = .
replace disut_ua = 0 if missing(disut_ua) & activity == 1
replace disut_ua = 0.025 if missing(disut_ua) & activity == 2
replace disut_ua = 0.246 if missing(disut_ua) & activity == 3

gen disut_pd = .
replace disut_pd = 0 if missing(disut_pd) & pain == 1
replace disut_pd = 0.08 if missing(disut_pd) & pain == 2
replace disut_pd = 0.338 if missing(disut_pd) & pain == 3

gen disut_ad = .
replace disut_ad = 0 if missing(disut_ad) & anxiety == 1
replace disut_ad = 0.078 if missing(disut_ad) & anxiety == 2
replace disut_ad = 0.258 if missing(disut_ad) & anxiety == 3

gen disut_total = disut_mo + disut_sc + disut_ua + disut_pd + disut_ad 

gen EQ_index = . 
replace EQ_index = 1 - 0.02 - disut_total
replace EQ_index = 1 if mobility == 1 & selfcare == 1 & activity == 1 & pain == 1 & anxiety == 1 
replace EQ_index = round(EQ_index, .001)