Olney Deanna K, Pedehombga Abdoulaye, Ruel Marie T, Dillon Andrew
Poverty Health and Nutrition Division, International Food Policy Research Institute, Washington, DC;
Helen Keller International, Ouagadougou, Burkina Faso; and.
J Nutr. 2015 Jun;145(6):1317-24. doi: 10.3945/jn.114.203539. Epub 2015 Apr 22.
Among young children in Burkina Faso, anemia and chronic and acute undernutrition are widespread.
This study assessed the impact of Helen Keller International's (HKI) 2-y integrated agriculture [homestead food production (HFP)] and nutrition and health behavior change communication (BCC) program, targeted to women, on children's (3-12.9 mo old at baseline) anthropometry (stunting, wasting, and underweight), mean hemoglobin (Hb), anemia (Hb < 11 g/dL), and diarrhea prevalence.
We used a cluster-randomized controlled trial, with 55 villages randomly assigned to a control group (n = 25) or 1 of 2 treatment groups (n = 15 each), which differed by who delivered the BCC messages [older women leaders or health committee (HC) members]. We used difference-in-difference (DID) estimates to assess impacts on child outcomes.
We found marginally significant (P < 0.10) impacts on Hb (DID: 0.51 g/dL; P = 0.07) and wasting [DID: -8.8 percentage point (pp); P = 0.08] and statistically significant (P < 0.05) impacts on diarrhea (-15.9 pp; P = 0.00) in HC compared with control villages among children aged 3-12.9 mo and larger impacts for anemia (DID: -14.6 pp; P = 0.03) and mean Hb (DID: 0.74 g/dL; P = 0.03) among younger children (aged 3-5.9 mo). However, we found no significant impacts on stunting or underweight prevalence. Plausibility was supported by greater improvements in women's agricultural production and maternal infant and young child feeding and care knowledge and practices in HC compared with control villages.
HKI's 2-y integrated HFP+BCC program (HC group) significantly improved several child outcomes, including wasting (marginal), diarrhea, Hb, and anemia, especially among the youngest children. This is the first cluster-randomized controlled trial of an HFP program that documents statistically significant positive effects on these child nutrition outcomes. This trial was registered at clinicaltrials.gov as NCT01825226.
在布基纳法索的幼儿中,贫血以及慢性和急性营养不良现象普遍存在。
本研究评估了海伦·凯勒国际组织(HKI)针对妇女开展的为期两年的综合农业项目[家庭食物生产(HFP)]以及营养与健康行为改变沟通(BCC)项目对儿童(基线年龄为3 - 12.9个月)的人体测量指标(发育迟缓、消瘦和体重不足)、平均血红蛋白(Hb)、贫血(Hb < 11 g/dL)和腹泻患病率的影响。
我们采用了整群随机对照试验,将55个村庄随机分为对照组(n = 25)或两个治疗组之一(每组n = 15),两个治疗组的区别在于传递BCC信息的人员[老年女性领袖或卫生委员会(HC)成员]。我们使用差分法(DID)估计来评估对儿童结局的影响。
我们发现,与对照村庄相比,在3 - 12.9个月大的儿童中,HC组对Hb(DID:0.51 g/dL;P = 0.07)和消瘦[DID:-8.8个百分点(pp);P = 0.08]有边缘显著(P < 0.10)的影响,对腹泻有统计学显著(P < 0.05)的影响(-15.9 pp;P = 0.00);在年龄较小的儿童(3 - 5.9个月)中,对贫血(DID:-14.6 pp;P = 0.03)和平均Hb(DID:0.74 g/dL;P = 0.03)有更大的影响。然而,我们未发现对发育迟缓或体重不足患病率有显著影响。与对照村庄相比,HC组妇女的农业生产以及母婴和幼儿喂养与护理知识及实践有更大改善,这支持了研究结果的合理性。
HKI的为期两年的综合HFP + BCC项目(HC组)显著改善了多项儿童结局,包括消瘦(边缘显著)、腹泻、Hb和贫血,尤其是在最小的儿童中。这是首个记录了对这些儿童营养结局有统计学显著积极影响的HFP项目的整群随机对照试验。该试验已在clinicaltrials.gov上注册,注册号为NCT01825226。