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Effect of the Brazilian iron fortification of wheat and corn flour on the nutritional iron status in adolescents, 6?years after its implementation

机译：实施后6年，巴西对小麦和玉米粉进行铁强化对青少年营养铁状况的影响

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BackgroundAs it is difficult to know the content of iron added in the Brazilian iron fortification of wheat and corn flour, and if the compound has good or poor bioavailability, the objective was to assess the effect of the Brazilian iron fortification program, as it was carried out, on iron nutritional status of adolescents, 6?years after its implementation. MethodsA cross-sectional retrospective study was conducted with adolescents aged 10 to 17?years, both sexes, treated at a primary health care center. Data were collected from medical records of patients and compared with those of a previous survey conducted at the same center in 2004. Anthropometry, iron biochemical indicators, food intake, pubertal stage, and transferrin saturation were assessed, with pubertal stage and transferrin saturation being the last two variables compared between 2004 and 2010. Mann-Whitney and chi-square tests were also used. ResultsIn 2010, mean hemoglobin values and serum ferritin levels were within normal ranges for both sexes, and adolescents who consumed diets with low iron bioavailability constituted more than half of the sample (52.7%). In 2004, a 10.3 and 18.6% prevalence of iron deficiency was observed, based on low transferrin saturation, in females and males, respectively. It was noted that during the 6-year period, this prevalence decreased significantly, 4 and 10.4%. ConclusionsAnemia and iron deficiency are not prevalent in this population, probably due to the implementation of flour fortification with iron; it is not possible, however, to attribute such a result only to the implementation of this strategy.
机译：背景技术由于很难知道巴西小麦和玉米粉铁质强化中添加的铁含量，并且如果该化合物具有良好或较差的生物利用度，那么目的是评估巴西铁质强化计划在实施时的效果。实施后6年，对青少年铁营养状况进行分析。方法采用横断面回顾性研究方法，对年龄在10至17岁之间的男女青少年进行初级保健中心的治疗。从患者的病历中收集数据，并将其与2004年在同一中心进行的先前调查的数据进行比较。人体测量，铁生化指标，食物摄入，青春期和运铁蛋白饱和度得到评估，青春期和运铁蛋白饱和度为最后两个变量在2004年和2010年之间进行了比较。还使用了Mann-Whitney和卡方检验。结果2010年，男女平均血红蛋白值和血清铁蛋白水平均在正常范围内，并且食用铁生物利用度低的饮食的青少年占样本的一半以上（52.7％）。 2004年，基于低转铁蛋白饱和度，在女性和男性中分别观察到铁缺乏症的患病率分别为10.3和18.6％。值得注意的是，在6年期间，该患病率显着下降了4％和10.4％。结论该人群中贫血和铁缺乏症并不普遍，可能是由于实施了铁粉强化。但是，不可能仅将这种结果归因于该策略的实施。

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