****************************************************************** *STATA syntax code for the computation of index* *values with the Dutch (NL) value set (DCE and TTO)* ******************************************************************; gen disut_mo = . replace disut_mo = 0 if missing(disut_mo) & mobility == 1 replace disut_mo = 0.036 if missing(disut_mo) & mobility == 2 replace disut_mo = 0.191 if missing(disut_mo) & mobility == 3 gen disut_sc = . replace disut_sc = 0 if missing(disut_sc) & selfcare == 1 replace disut_sc = 0.028 if missing(disut_sc) & selfcare == 2 replace disut_sc = 0.139 if missing(disut_sc) & selfcare == 3 gen disut_ua = . replace disut_ua = 0 if missing(disut_ua) & activity == 1 replace disut_ua = 0.058 if missing(disut_ua) & activity == 2 replace disut_ua = 0.211 if missing(disut_ua) & activity == 3 gen disut_pd = . replace disut_pd = 0 if missing(disut_pd) & pain == 1 replace disut_pd = 0.111 if missing(disut_pd) & pain == 2 replace disut_pd = 0.363 if missing(disut_pd) & pain == 3 gen disut_ad = . replace disut_ad = 0 if missing(disut_ad) & anxiety == 1 replace disut_ad = 0.096 if missing(disut_ad) & anxiety == 2 replace disut_ad = 0.314 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 - disut_total replace EQ_index = round(EQ_index, .001)