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Characteristics of the un-matched sample of males and females (n = 515).
| Parameter | Pre-intervention | Post-intervention | Remarks |
|---|---|---|---|
| Anaemic | 148 | 79 | χ2 = 26.90 p < 0.001 |
| Mean haemoglobin | 12.93 | 13.73 | t = 6.73 p < 0.001 |
| Standard deviation | 2.03 | 1.93 | |
| Variance | 4.14 | 3.71 | |
| Range | 3.0-17.8 | 6.3-19.2 | |
| Inter-quartile range | 11.8-14.2 | 12.7-14.9 | |
| Median | 12.9 | 13.7 | |
| Mode | 12.6 | 14.0 |
