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为探讨ＶｉｔＡ水平与急性呼吸道感染（ＡＲＩ）性疾病死亡率关系，在河南省５岁以下儿童死亡监测基础上，选择ＶｉｔＡ缺乏较重的卢氏县两个乡１０７５７名５岁以下儿童进行营养及血清ＶｉｔＡ测定，并将其随机分为服药组和对照组（不服药组），监测两年，观察两组ＶｉｔＡ水平与ＡＲＩ死亡率变化关系。结果经两年口服ＶｉｔＡ后，服药组ＡＲＩ死亡率与对照组相比有明显下降（Ｕ＝１．９３３，Ｐ＜０．０５）。提示补充ＶｉｔＡ对降低５岁以下儿童死亡率起一定作用
To investigate the relationship between vitamin A level and acute respiratory infection (ARI) mortality, based on the monitoring of death of children under 5 years of age in Henan Province, 10 757 children under 5 years of age in two townships of Lushi County with relatively low VitA level were enrolled in this study. Serum VitA were measured and randomly divided into medication group and control group (no medication group) for two years. The relationship between VitA level and ARI mortality was observed. Results After two years of oral administration of VitA, the ARI mortality in the medication group was significantly lower than that in the control group (U = 1.933, P <0.05). Suggesting that supplementation of VitA may have a role in reducing mortality in children under 5 years of age