******************************************************************
*STATA syntax code for the computation of index*
*values with the Indonesian value set (DCE and TTO hybrid)*
******************************************************************;

gen disut_mo = .
replace disut_mo = 0 if missing(disut_mo) & mobility == 1
replace disut_mo = 0.119 if missing(disut_mo) & mobility == 2
replace disut_mo = 0.192 if missing(disut_mo) & mobility == 3
replace disut_mo = 0.41 if missing(disut_mo) & mobility == 4
replace disut_mo = 0.613 if missing(disut_mo) & mobility == 5

gen disut_sc = .
replace disut_sc = 0 if missing(disut_sc) & selfcare == 1
replace disut_sc = 0.101 if missing(disut_sc) & selfcare == 2
replace disut_sc = 0.14 if missing(disut_sc) & selfcare == 3
replace disut_sc = 0.248 if missing(disut_sc) & selfcare == 4
replace disut_sc = 0.316 if missing(disut_sc) & selfcare == 5

gen disut_ua = .
replace disut_ua = 0 if missing(disut_ua) & activity == 1
replace disut_ua = 0.09 if missing(disut_ua) & activity == 2
replace disut_ua = 0.156 if missing(disut_ua) & activity == 3
replace disut_ua = 0.301 if missing(disut_ua) & activity == 4
replace disut_ua = 0.385 if missing(disut_ua) & activity == 5

gen disut_pd = .
replace disut_pd = 0 if missing(disut_pd) & pain == 1
replace disut_pd = 0.086 if missing(disut_pd) & pain == 2
replace disut_pd = 0.095 if missing(disut_pd) & pain == 3
replace disut_pd = 0.198 if missing(disut_pd) & pain == 4
replace disut_pd = 0.246 if missing(disut_pd) & pain == 5

gen disut_ad = .
replace disut_ad = 0 if missing(disut_ad) & anxiety == 1
replace disut_ad = 0.079 if missing(disut_ad) & anxiety == 2
replace disut_ad = 0.134 if missing(disut_ad) & anxiety == 3
replace disut_ad = 0.227 if missing(disut_ad) & anxiety == 4
replace disut_ad = 0.305 if missing(disut_ad) & anxiety == 5

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

gen EQ_index = . 
replace EQ_index = 1 - disut_total
replace EQ_index = round(EQ_index, .001)