1. Categories of interventions used in individual studies and duration of follow‐up.
| Study ID | Intervention | Duration | Number of patients |
| Altieri 2004 | HDF versus HF | 12 months | 39 |
| Bammens 2004 | HDF versus HD | 2 weeks | 14 |
| Basile 2001 | AFB versus HD | 12 months | 11 |
| Beerenhout 2005 | HF versus HD | 12 months | 40 |
| Bolasco 2003 | HF versus HDF versus HD | 18 months | 146 |
| Coll 2009 | AFB versus HDF | 15 months | 30 |
| CONTRAST (Dutch) Study 2005 | HDF versus HD | 36 months | 714 |
| Cristofano 2004 | HDF versus HD | 1 session | 12 |
| Ding 2002 | HDF versus AFB | 36 weeks | 12 |
| Eiselt 2000 | AFB versus HD | 12 months | 20 |
| ESHOL Study 2011 | HDF versus HD | 36 months | 906 |
| Fox 1993 | HF versus HD | 1 session | 9 |
| Kantartzi 2013 | HDF versus HD | 3 months | 24 |
| Karamperis 2005 | HDF versus HD | 2 sessions | 12 |
| Lin 2001 | HDF versus HD | 15 months | 67 |
| Locatelli 1994 | HDF versus HD | 24 months | 205 |
| Lornoy 1998 | HDF versus HD | 1 session | 8 |
| Mandolfo 2008 | HDF versus HD | 6 weeks | 8 |
| Meert 2009 | HDF versus HF | 9 weeks | 14 |
| Movilli 1996 | HDF versus AFB | 6 months | 12 |
| Noris 1998 | AFB versus HD | 1 week | 5 |
| Ohtake 2012 | HDF versus HD | 12 months | 22 |
| Pedrini 2011a | HDF versus HD | 12 months | 69 |
| PROFIL Study 2011 | HF versus HD | 24 months | 48 |
| Righetti 2010 | HDF versus HD | 18 months | 24 |
| Santoro 1999 | AFB versus HD | 48 months | 371 |
| Santoro 2005a | HF versus HD | 36 months | 64 |
| Schiffl 1992 | HF versus HD | 48 months | 32 |
| Schiffl 2007 | HDF versus HD | 48 months | 76 |
| Schrander vd Meer 1998 | AFB versus HD | 12 months | 24 |
| Selby 2006a | AFB versus HD | 4 weeks | 12 |
| Stefansson 2012 | HDF versus HD | 4 months | 20 |
| Teo 1987 | HDF versus HD | 8 months | 13 |
| Todeschini 2002 | AFB versus HD | 3 sessions | 9 |
| Tuccillo 2002 | HDF versus HD | 3 months | 12 |
| TURKISH HDF 2013 | HDF versus HD | 24 months | 782 |
| Vaslaki 2006 | HDF versus HD | 48 weeks | 129 |
| Verzetti 1998 | AFB versus HD | 12 months | 41 |
| Ward 2000 | HDF versus HD | 12 months | 50 |
| Wizemann 2000 | HDF versus HD | 24 months | 44 |
AFB ‐ acetate‐free biofiltration; HDF ‐ haemodiafiltration; HD ‐ haemodialysis; HF ‐ haemofiltration