Methods: Using data from the South Yorkshire Cohort study (N = 00,000) collected between 0000 and 0000 on the EQ-0D, long-standing health conditions (self-reported), and subjective well-being measure - life satisfaction using a response scale from 0 (completely dissatisfied) to 00 (completely satisfied), we employed generalised logit regression models. We assessed the impact of EQ-0D and long-standing health conditions together on life satisfaction by examining the size and significance of their estimated odds ratios.