Table 2.
Incidence of common cold and gastroenteritis
| Subjects diagnosed with common cold or gastroenteritis (n/total n (%)) | RR | 95% CI | P value | ||
|---|---|---|---|---|---|
| Nonconsumption group | Consumption group | ||||
| First period | |||||
| Common cold | 131/1089 (12·0) | 108/694 (15·6) | 1·294 | 1·021, 1·638 | 0·033 |
| Gastroenteritis | 19/1089 (1·7) | 17/694 (2·4) | 1·404 | 0·735, 2·682 | 0·302 |
| Second period | |||||
| Common cold | 62/694 (8·9) | 117/1089 (10·7) | 1·203 | 0·897, 1·612 | 0·215 |
| Gastroenteritis | 27/694 (3·9) | 63/1089 (5·8) | 1·487 | 0·957, 2·310 | 0·075 |
RR, relative risk; CI, confidence interval.