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| Characteristics | OM-85 BV Group (n=27) | Placebo Group (n=27) | p value |
|---|---|---|---|
| Male* | 12 (44.4) | 19 (70.4) | 0.09 |
| Age, years † | 3.6±1.3 | 3.04±1.5 | 0.15 |
| Age at daycare, months † | 16.7±13.6 | 13.8±11.9 | 0.41 |
| Breastfeeding* | 0.76 | ||
| Less than 1 month | 5 (18.5) | 7 (25.9) | |
| Exclusive up to 3 months | 16 (59.3) | 13 (48.1) | |
| Exclusive up to 6 months | 6 (22.2) | 7 (25.9) | |
| Family history of smoking* | 11 (40.7) | 13 (48.1) | 0.78 |
Results expressed as n (%) or mean±standard deviation.
* χ 2 tests; † t test.
