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The Hb levels among the four groups after 14 days intervention
| Group | Number | Mean of Hb level (g/L) | Mean of Hb level after 14 days intervention (g/L) | Mean of average increase (g/L) |
|---|---|---|---|---|
| A | 33 | 109.12 ± 11.23 | 114.22 ± 13.47 | 5.11 ± 2.23* |
| B | 31 | 112.52 ± 11.85 | 114.52 ± 13.55 | 2.43 ± 1.70 |
| C | 30 | 111.86 ± 15.17 | 119.28 ± 19.85 | 7.43 ± 4.67† |
| D | 33 | 101.32 ± 19.42 | 103.65 ± 20.52 | 2.23 ± 1.09 |
Results are expressed as mean ± SD. *Compared with group B, p<0.05. †Compared with group D, p<0.01.
