Figure 4.

Proportion of patients with potassium ≥6.0 mEq/l pre- versus post-patiromer initiation: all patiromer initiators (a); restricted to patiromer initiators with a baseline potassium ≥5.0 mEq/l (b). *P values were derived from the McNemar test, a within-subject z-test of equality of proportions for correlated data. This paired statistical test compares the proportion of patients with a K⁺ value ≥6.0 mEq/l pre-patiromer initiation versus post-patiromer initiation. The last K⁺ value in the 3-month pre-patiromer interval was compared with the last K⁺ value in each monthly follow-up interval. CI, confidence interval; K⁺, potassium.