Prevalence of iron-deficiency anaemia in Brazilian children under 5 years of age: a systematic review and meta-analysis.

摘要: Fe-deficiency anaemia is considered an important public health problem both in wealthier countries and those of medium low income, especially children under 5 years age. The shortage studies with national representativity medium-income countries, such as Brazil, prevents the knowledge current situation its associated factors. We conducted a systematic review meta-analysis to estimate pooled prevalence Brazilian age determined factors involved variability estimates prevalence. collected fifty-seven from databases MEDLINE, LILACS Web Science, along reference lists included articles. contacted authors for unpublished data. did not restrict publication timespan language. This was reported according guidelines by PRISMA. Brazil 40·2 (95 % CI 36·0, 44·8) %. range child period data collection were higher 24 months (53·5 v. 30·7 %; P < 0·001) before 2004 (51·8 32·6 = 0·001). efforts made government successful reduction evaluated period. However, remains beyond acceptable levels this population group.