Table 4.

Three-year crude mortality rates in 16 groups of serum and dialysate K concentrations

Baseline K (mEq/L)Baseline K Bath (mEq/L; Proportion in Each Serum K Category [%];3-yr Crude Death Rate [%])
≤1.0(n = 11,165; 29%)2.0a (n = 46,572; 31%)3.0a (n = 15,527; 27%)>3.0(n = 956; 30%)
<3.5 (n = 1039)3 (35)39 (40)47 (32)11 (38)
3.5 to <4.0 (n = 5578)3 (38)54 (32)39 (29)4 (22)
4.0 to <5.0 (n = 38,543)8 (31)65 (31)25 (28)1 (31)
≥5.0 (n = 29,059)26 (30)63 (33)10 (31)1 (42)
  • a Dialysate K categories of 2.0 and 3.0 mEq/L also include 1.1 to 2.0 and 2.1 to 3.0 mEq/L, respectively.