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Table 2 HD treatments at different flow rates

From: Is it useful to increase dialysate flow rate to improve the delivered Kt?

Qd (n patients) Effective time (min) Effective Qb (ml/min) Kt (L) Kmin
500 ml/min (n= 31) 233.4 (6.5) 376 (29.6) 53.4 (4.6) 232.4 (14.4)
700 ml/min (n= 31) 233 (7.8) 374 (26.4) 55 (4.7) c 240.7 (13) f
AF (n= 31) 235.8 (15) 379.6 (29.6) 53.2 (3.9) 233.8 (13.2)
400 ml/min (n=22) 233.3 (5.7) 382.3 (18.7) 51.3 (2.3) a,b 219.5 (9.6) d,e
  1. AF: autoflow. Results with 500, 700 and AF are similar with 31 vs. 22 patients. In comparison with 400 ml/min we only included 22 patients in statistical study (Student’s paired t-test).
  2. ap<0.04 for Kt 400 ml/min vs. Kt 500 ml/min, bp<0.004 for Kt 400 vs. Kt 700 ml/min, cp<0.008 for Kt 700 ml/min vs. Kt 500 ml/min and AF, dp<0.01 Kmin400 vs. Kmin500 and KminAF, dp<0.001 for Kmin400 vs. Kmin700, ep<0.001 for Kmin400 vs. Kmin700, fp<0.0001 for Kmin700 vs. Kmin500 and AF.