| Autor: |
Silveira VNC; Physiological Sciences Department, Federal University of Maranhão, São Luís, MA, Brazil., Carvalho CA; Medical Course Coordination, Federal University of Maranhão, Pinheiro, MA, Brazil., Viola PCAF; Nutrition Department, Federal University of Piauí, Teresina, PI, Brazil., Magalhães EIS; Post-Graduate Program in Collective Health, Federal University of Maranhão, São Luís, MA, Brazil., Padilha LL; Nutrition Course Coordination, University Centre Estácio São Luís, São Luís, MA, Brazil., Conceição SIO; Physiological Sciences Department, Federal University of Maranhão, São Luís, MA, Brazil., Frota MTBA; Physiological Sciences Department, Federal University of Maranhão, São Luís, MA, Brazil., Calado IL; Physiological Sciences Department, Federal University of Maranhão, São Luís, MA, Brazil., Cantanhede NAC; Physiological Sciences Department, Federal University of Maranhão, São Luís, MA, Brazil., Franceschini SCC; Nutrition and Health Department, Federal University of Viçosa, Viçosa, MG, Brazil., França AKTC; Physiological Sciences Department, Federal University of Maranhão, São Luís, MA, Brazil.; Post-Graduate Program in Collective Health, Federal University of Maranhão, São Luís, MA, Brazil. |
| Abstrakt: |
Fe-deficiency anaemia is considered an important public health problem both in wealthier countries and in those of medium and low income, especially in children under 5 years of age. The shortage of studies with national representativity in medium-income countries, such as Brazil, prevents the knowledge of the current situation and its associated factors. We conducted a systematic review and meta-analysis to estimate the pooled prevalence of Fe-deficiency anaemia in Brazilian children under 5 years of age and determined the factors involved in the variability of the estimates of prevalence. We collected fifty-seven studies from the databases MEDLINE, LILACS and Web of Science, along with the reference lists of included articles. We contacted authors for unpublished data. We did not restrict publication timespan and language. This systematic review and meta-analysis was reported according to the guidelines by PRISMA. The pooled prevalence of anaemia in Brazil was 40·2 (95 % CI 36·0, 44·8) %. The age range of the child and the period of data collection were associated with the anaemia prevalence. The pooled prevalence of anaemia was higher in children under 24 months of age (53·5 v. 30·7 %; P < 0·001) and in studies with data collected before 2004 (51·8 v. 32·6 %; P = 0·001). The efforts made by the Brazilian government were successful in the reduction of anaemia in children under 5 years of age in Brazil in the evaluated period. However, prevalence remains beyond acceptable levels for this population group. |
