Table 4. Mean PEFR across different weight categories.
PEFR: Peak expiratory flow rate
| Weight group (In kg) | Frequency | Mean PEFR | PEFR SD |
| <20.9 | 56 | 2.44 | 0.69 |
| 21.0-30.9 | 120 | 3.43 | 1.27 |
| 31.0-40.9 | 85 | 4.55 | 1.10 |
| 41.0-50.9 | 41 | 5.49 | 1.30 |
| >51.0 | 14 | 5.54 | 1.60 |
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