Department of Pediatrics, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
J Trop Pediatr. 2014 Apr;60(2):104-11. doi: 10.1093/tropej/fmt089. Epub 2013 Nov 5.
Zinc supplementation prevents incident pneumonia in children; however, the effect for pneumonia treatment remains unclear.
A randomized, double-blind, placebo-controlled trial of zinc supplements (daily 25 mg) adjunct to antibiotic treatment of radiology-confirmed acute pneumonia was conducted among hospitalized children (6-36 months) in Dar es Salaam, Tanzania.
The trial was stopped early due to low enrollment, primarily owing to exclusion of children outside the age range and >3 days of prior illness. Among children enrolled (n = 94), zinc supplementation indicated no beneficial effect on the duration of hospitalization (IRR: 0.69; 95% CI 0.45-1.06; p = 0.09) or the proportion of children who were hospitalized for <3 days (RR: 0.85; 95% CI: 0.57-1.25; p = 0.40) or <5 days (RR: 1.01; 95% CI: 0.83-1.23; p = 0.92) (IRRs and RRs >1.0 favor zinc).
Although underpowered, this randomized trial provided no evidence for a beneficial effect of zinc supplementation adjunct to antibiotics for hospitalized children.
补锌可预防儿童发生肺炎;然而,补锌对肺炎治疗的效果尚不清楚。
在坦桑尼亚达累斯萨拉姆,对因影像学确诊的急性肺炎而住院的儿童(6-36 个月)进行了一项随机、双盲、安慰剂对照的锌补充剂(每日 25 毫克)辅助抗生素治疗的试验。
由于入组人数较少,主要是由于排除了年龄范围之外和发病前 >3 天的儿童,该试验提前停止。在入组的儿童中(n=94),补锌对住院时间(IRR:0.69;95%CI:0.45-1.06;p=0.09)或住院 <3 天(RR:0.85;95%CI:0.57-1.25;p=0.40)或 <5 天(RR:1.01;95%CI:0.83-1.23;p=0.92)的儿童比例均无有益影响(IRR 和 RR>1.0 表示锌有利)。
尽管该随机试验的效力不足,但并未提供补锌辅助抗生素治疗住院儿童有益的证据。