Table 3.

Average in vivo trans-dialyser extraction ratios

	Urea	Creatinine	MMA
Subject
1′	59%	61%	20%
2′	50%	66%	18%
3′	71%	70%	21%
4′	69%	61%	18%
5′	62%	64%	16%
Mean	62%	64%	19%
SD	8%	4%	2%