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Frequency of symptoms and dose of lactose (χ2 = 11.834; p = 0.003 according to Pearson’s χ2 test)
| Symptoms | Dose of 30 g, n (%) | Dose of 50 g, n (%) | Total, n (%) |
|---|---|---|---|
| Lack | 18 (53.0) | 15 (20.8) | 33 (31.1) |
| Moderate | 13 (38.2) | 39 (54.2) | 52 (49.1) |
| Severe | 3 (8.8) | 18 (25.0) | 21 (19.8) |
| Total | 34 (100.0) | 72 (100.0) | 106 (100.0) |
