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Incidence and duration of catching colds in the participants.
| Yogurt (n = 25) | Placebo (n = 24) | p Value | |
|---|---|---|---|
| Incidences | 4 | 5 | - |
| Incidence rate (%) | 16.0 | 20.8 | 0.73 |
| Episodes | 5 | 7 | - |
| Cumulative durations (days) | 14 | 45 | - |
| Duration per episode (days) | 2.8 ± 1.9 | 6.4 ± 8.0 | 0.29 |
The duration per episode is presented as the mean ± standard deviation. Comparisons between groups were performed using Student’s t-test or Fisher’s exact test.
