Research Article
Efficacy and Safety of Lianhuaqingwen Capsules for the Prevention of Coronavirus Disease 2019: A Prospective Open-Label Controlled Trial
Table 7
Positive rates of subjects in different age groups.
| Age | Positive rate | N = 1976 | value | LH group | Control group |
| ≤45 | | 693 | 579 | 0.1518 | Positive, N (%) | 2 (0.18) | 6 (0.69) |
| <45 | | 358 | 278 | 0.1736 | ≤70 | Positive, N (%) | 1 (0.09) | 4 (0.46) |
| >70 | | 50 | 18 | | Positive, N (%) | 0 (0.00) | 0 (0.00) | |
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