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Correlation between percent change in eHTKV-α from baseline at 1 year and annual changes in a TKV and b eGFR over 3 years. Analyses included tolvaptan-assigned patients in TEMPO 3:4 with TKV data available to calculate eHTKV-α at baseline and year 1 (n = 812). CI, confidence interval; eGFR, estimated glomerular filtration rate; eHTKV-α, estimated height-adjusted total kidney volume growth rate; ρ, Pearson correlation coefficient; TKV, total kidney volume
