****************************************************************** *STATA syntax code for the computation of index* *values with the Dutch (NL) TTO value set* ******************************************************************; gen disut_mo = . replace disut_mo = 0 if missing(disut_mo) & mobility == 1 replace disut_mo = 0.035 if missing(disut_mo) & mobility == 2 replace disut_mo = 0.057 if missing(disut_mo) & mobility == 3 replace disut_mo = 0.166 if missing(disut_mo) & mobility == 4 replace disut_mo = 0.203 if missing(disut_mo) & mobility == 5 gen disut_sc = . replace disut_sc = 0 if missing(disut_sc) & selfcare == 1 replace disut_sc = 0.038 if missing(disut_sc) & selfcare == 2 replace disut_sc = 0.061 if missing(disut_sc) & selfcare == 3 replace disut_sc = 0.168 if missing(disut_sc) & selfcare == 4 replace disut_sc = 0.168 if missing(disut_sc) & selfcare == 5 gen disut_ua = . replace disut_ua = 0 if missing(disut_ua) & activity == 1 replace disut_ua = 0.039 if missing(disut_ua) & activity == 2 replace disut_ua = 0.087 if missing(disut_ua) & activity == 3 replace disut_ua = 0.192 if missing(disut_ua) & activity == 4 replace disut_ua = 0.192 if missing(disut_ua) & activity == 5 gen disut_pd = . replace disut_pd = 0 if missing(disut_pd) & pain == 1 replace disut_pd = 0.066 if missing(disut_pd) & pain == 2 replace disut_pd = 0.092 if missing(disut_pd) & pain == 3 replace disut_pd = 0.360 if missing(disut_pd) & pain == 4 replace disut_pd = 0.415 if missing(disut_pd) & pain == 5 gen disut_ad = . replace disut_ad = 0 if missing(disut_ad) & anxiety == 1 replace disut_ad = 0.070 if missing(disut_ad) & anxiety == 2 replace disut_ad = 0.145 if missing(disut_ad) & anxiety == 3 replace disut_ad = 0.356 if missing(disut_ad) & anxiety == 4 replace disut_ad = 0.421 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 - 0.047 - disut_total replace EQ_index = 1 if mobility == 1 & selfcare == 1 & activity == 1 & pain == 1 & anxiety == 1 replace EQ_index = round(EQ_index, .001)