Table II.
Comparison of chest X-ray grade before treatment.
| Chest X-ray grade | ||||||
|---|---|---|---|---|---|---|
| Group | n | Grade I | Grade II | Grade III | χ2 | P-value |
| Control group | 50 | 15 (30.00) | 27 (54.00) | 8 (16.00) | ||
| Treatment group | 50 | 11 (22.00) | 27 (54.00) | 12 (24.00) | 1.415 | 0.493 |
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