Fig. 1

Adjusted Hazard Ratios for Mortality based on Cox Regression model^a. ^aModel included five subscales (presented) and the following adjustment factors as of first KDQOL-36 administration after January 1, 2012: age, race, sex, Medicaid status, time on dialysis (years), Kt/V, hemoglobin, charlson comorbidity index score, and access type (catheter, arterialvenous fistula, arterialvenous graft). Model results (hazard ratios and 95% confidence intervals) for covariates presented in Additional file 1: Table S4