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Association of pre-dialysis SBP with adjusted risk of all-cause mortality, using three analytical models. All models adjusted for age, sex, Black race, serum albumin concentration, vintage, modified ICED score, diabetes, residual kidney function and randomized intervention group. Error bars indicate 95% confidence intervals. SBP, systolic blood pressure; Model-BL, baseline SBP as a time-constant variable; Model-TV, SBP as a time-varying variable; Model-TV-Lag, Model-TV + 3-month lag.
