Comparison of baseline characteristics between the placebo and metoprolol group
| Placebo group | Metoprolol group | p Value | |
|---|---|---|---|
| Age (years) | 19.53±6.97 | 19±5.97 | 0.78 |
| Weight (kg), mean (range) | 44.8 (39–61) | 45.5 (35–58) | 0.84 |
| Blood pressure (mm Hg), median (range) | 100/70 (90–115/65–80) | 105/75 (90–135/60–80) | 0.4 |
| Pulse rate per minute, mean (range) | 95 (83–113) | 93 (85–110) | 0.78 |
| Haemoglobulin (mg/dL), mean (range) | 8.5 (7.5–9) | 8.3 (7–9.5) | 0.63 |
| Ferritin (ng/dL), mean | 2392.5±1409.7 | 3125.1±2035.4 | 0.48 |
| 6 Min walk test (m) | 242.5±68.1 | 347.2±69.1 | <0.001 |