Table II.
Relative risk of wintertime gastrointestinal infections during the first five years of life in children vaccinated against rotaviruses
| Variable | HR | 95% CI | P-value |
|---|---|---|---|
| Univariate analysis: | |||
| Rotarix vaccination | 0.56 | 0.36–0.85 | 0.007 |
| Birth weight < 2500 g | 2.21 | 1.02–4.77 | 0.044 |
| Breast feeding ≤ 6 months | 1.32 | 0.55–3.15 | NS |
| Breast feeding > 6 months | 1.10 | 0.47–2.56 | NS |
| Mother's education (higher or university) | 0.90 | 0.52–1.57 | NS |
| Father's education (higher or university) | 0.79 | 0.52–1.20 | NS |
| Other children in the family | 0.88 | 0.58–1.32 | NS |
| Age | 0.91 | 0.73–1.14 | NS |
| Multivariate analysis: | |||
| Vaccination | 0.56 | 0.37–0.86 | 0.008 |
| Birth weight < 2500 g | 2.23 | 1.03–4.82 | 0.041 |
Cox proportional hazards regression model: HR – hazard ratio, CI – confidence interval.