Table 1.
Maximum methemoglobin fraction and hemoglobin concentration during each session of extended hemodialysis/hemodiafiltration between 1 February 2008 and 31 January 2009
| Extended hemodialysis/hemodiafiltration on days with water disinfection | Extended hemodialysis/hemodiafiltration on disinfection-free days | P | |
|---|---|---|---|
| Number of sessions | 34 | 207 | |
| Methemoglobin fraction (%) | 5.9 (1.3; 8.4) | 1.0 (0.8; 1.2) | < 0.001 |
| Hemoglobin concentration (g/dl) | 9.8 ± 0.9 | 10.3 ± 1.1 | 0.01 |
Data are reported as median (25th; 75th percentiles) or as mean ± standard deviation.