Table 2 Hb levels, ESA and IV iron doses, anemia- and volume status-related parameters
|  | Early-week days | Mid-week days | P-value |
|---|---|---|---|
Hb (g/dL) | 10.71 ± 0.06 | 10.78 ± 0.47 | 0.105 |
Hct (%) | 33.83 ± 12.36 | 32.36 ± 1.53 | 0.230 |
Dose of ESA (μg/month) a | 175.4 ± 72.5 | 163.7 ± 83.6 | 0.022 |
 Median (range) | 170.0 (0–376.7) | 157.1 (13.3–492.5) |  |
 Interquartile range | 123.5–201.9 | 108.0–208.8 |  |
Dose of IV iron (mg/year) b | 623.0 ± 489.0 | 447.0 ± 505.2 | 0.001 |
Parameters related to volume status | |||
 Interdialytic body weight gain (kg) | 2.81 ± 0.82 | 1.99 ± 0.61 | < 0.001 |
 Ultrafiltration volume (kg) | 2.65 ± 0.73 | 2.12 ± 0.66 | < 0.001 |
 Pre-dialysis body weight/DBW (%) | 104.89 ± 3.42 | 103.51 ± 1.77 | < 0.001 |
Parameters related to anemia | |||
 spKt/V | 1.63 ± 0.24 | 1.67 ± 0.23 | < 0.001 |
 Albumin (g/dL) | 3.62 ± 0.74 | 3.76 ± 0.80 | < 0.001 |
 Prealbumin (mg/dL) | 34.05 ± 7.01 | 31.94 ± 6.84 | < 0.001 |
 hs-CRP (mg/L) | 0.26 ± 0.33 | 0.28 ± 0.33 | 0.151 |
 Ferritin (ng/mL) | 386.0 ± 292.4 | 308.1 ± 238.0 | < 0.001 |
 TSAT (%) | 36.43 ± 9.03 | 37.46 ± 10.90 | 0.304 |
 iPTH (pg/mL) | 205.1 ± 113.7 | 230.4 ± 129.9 | 0.021 |