Table 3. Logistic regression model for maternal breastfeeding and early infections in children with Down syndrome in the whole population of the study and in children just with acute lymphoblastic leukaemia.
| Whole population with AL | Children with ALL | |||
|---|---|---|---|---|
| Variables | OR a | CI 95% | OR a | CI 95% |
| Maternal breastfeeding | 0.84 | 0.43–1.61 | 0.74 | 0.36–1.49 |
| Breastfeeding ⩽6 months | 0.49 | 0.23–1.04 | 0.49 | 0.21–1.11 |
| Breastfeeding ⩾7 months | 1.45 | 0.67–3.11 | 1.33 | 0.57–3.09 |
| Hospitalisation for infection during the child's first year of life | 3.57 | 1.59–8.05 | 3.45 | 1.37–8.66 |
| Infection during the child's first year of life | 1.70 | 0.82–3.52 | 1.45 | 0.64–3.30 |
AL=acute leukaemia; ALL=acute lymphoblastic leukaemia; CI=confidence intervals; OR=odds ratio.
a
The model was adjusted for the following variables: sex, weight at birth <2500 g, age of child, firstborn child, low standard of living and cardiovascular diseases.