Table 1 Baselines characteristics.
| Â | FeSO4 a n = 74 | Placebo n = 71 | Differencea Absolute values |
|---|---|---|---|
Age, mean years (SD) | 32.9 (8.4) | 30.7 (8.8) | 2.1 |
Number of previous donations per year, n (%) | Â | Â | Â |
   None | 26 (35.1%) | 25 (35.2%) | -0.1% |
   One | 29 (39.2%) | 31 (43.7%) | -4.5% |
   Two | 19 (25.7%) | 15 (21.1%) | 4.6% |
Weight, mean kg (SD) | 64.2 (10.7) | 67.6 (13.3) | -3.4 |
Pictorial Bleeding Assessment chart | Â | Â | Â |
   Score > 185, n (%) | 6 (8.2%) | 9 (12.7%) | -4.5%a |
Before donation; mean (SD) | Â | Â | Â |
   Visual analogue scale for fatigue | 3.4 (2.4) | 3.9 (2.6) | -0.6 |
   Fatigue severity scale | 2.5 (1.1) | 2.7 (1.2) | -0.2 |
   Hemoglobin, g/Lb | 138 (6.3) | 135 (7.5) | 3 |
   Ferritin, ng/mLb | 36.3 (22.4) | 34.1 (15.0) | 2.2 |
One week after donation; mean (SD) | Â | Â | Â |
   Visual analogue scale for fatigue | 3.9 (2.3) | 4.0 (2.4) | -0.02 |
   Fatigue severity scale | 2.9 (1.3) | 3.0 (1.4) | -0.1 |
   Vitality score (SF-12V2)c | 53.1 (12.9) | 55.9 (11.3) | -2.8 |
   Chester step test, mLO2/kg/min | 37.0 (7.2) | 36.9 (5.9) | 0.1 |
   Hemoglobin, g/L | 126 (5.2) | 126 (5.3) | -0.02 |
   Ferritin, ng/mL | 15.3 (7.7) | 14.8 (7.3) | 0.4 |
   C-reactive protein, mg/L | 2.1 (2.9) | 2.9 (3.5) | 0.8 |
   Depression (PHQ-9), n (%) | 4 (5.4%) | 4 (5.7%) | -0.3% |
   Mental health (SF-12NL)d | 38.6 (4.4) | 39.3 (5.3) | -0.7 |
   Physical condition (SF-12NL)d | 53.7 (4.2) | 53.6 (4.2) | 0.09 |