Table 2.
Effects of herbal medicine on the risk of the common cold and by age group.
| Herbal medicine group, n (%; 95% CI) | Control group, n (%; 95% CI) | OR (95% CI) | Protective effect (95% CI) | p-value | |
|---|---|---|---|---|---|
| Alla | 2 (0.02; 0.00–0.07) | 18 (0.16; 0.10–0.26) | 0.104 (0.023–0.471) | 89.6% (52.9%–97.7%) | 0.0033 |
| Age group, years | |||||
| < 16b | 0 (0.00; 0.00–10.00) | 0 (0.00; 0.00–5.13) | – | – | – |
| 16–59c | 1 (0.01; 0.00–0.07) | 13 (0.20; 0.11–0.34) | 0.060 (0.008–0.479) | 94.0% (52.1%–99.2%) | 0.0079 |
| ≥ 60d | 1 (0.04; 0.00–0.21) | 5 (0.12; 0.04–0.27) | 0.315 (0.037–2.673) | 68.5% (-167.3%–93.3%) | 0.2899 |
OR: Odds Ratio.
a
11,089 participants in the herbal medicine group and 10,956 in the control group.
b
35 patients in the herbal medicine group and 70 in the control group.
c
8,383 patients in the herbal medicine group and 6,574 in the control group.
d
2,659 patients in the herbal medicine group and 4,269 in the control group.