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Jornal de Pediatria
Print version ISSN 0021-7557
BOCCOLINI, Cristiano Siqueira; CARVALHO, Márcia Lazaro de; OLIVEIRA, Maria Inês Couto de and BOCCOLINI, Patricia de Moraes Mello. Breastfeeding can prevent hospitalization for pneumonia among children under 1 year old. J. Pediatr. (Rio J.) [online]. 2011, vol.87, n.5, pp. 399-404. ISSN 0021-7557. http://dx.doi.org/10.1590/S0021-75572011000500006.
OBJECTIVE: To evaluate the relationship between breastfeeding and hospitalization for pneumonia among children under 1 year old. METHODS: Ecological study using secondary data of hospitalizations for pneumonia (outcome) and breastfeeding prevalence data (exposure) among children under 1 year old living in the Brazilian state capital cities and the Federal District in 2008. A negative binomial model of hospitalization was used to estimate the rate ratio (95% confidence interval), adjusted according to the Gini Index, and the prevalence rates of smokers in the general population and low birth weight individuals in the population investigated. RESULTS: Breastfeeding prevalence among children between 9 and 12 months old and exclusive breastfeeding prevalence among children under 6 months old were associated with a lower rate ratio of hospitalization for pneumonia (RR = 0.62; 95%CI 0.51-0.74 and RR = 0.52; 95%CI 0.39-0.69, respectively). CONCLUSION: Increased prevalence rates of breastfeeding during the first year of life and exclusive breastfeeding during the first 6 months of life can reduce the number of hospitalizations for pneumonia.
Keywords : Breastfeeding; hospitalization; pneumonia.