Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA.
J Nutr. 2019 Oct 1;149(10):1833-1842. doi: 10.1093/jn/nxz133.
Child development is affected by multiple factors throughout pregnancy and childhood. Multisectoral programs addressing these factors may improve children's development.
We evaluated the impact of a food-assisted multisectoral nutrition program (Tubaramure) on children's (4-41.9 mo) motor and language development. Tubaramure was targeted to Burundian women and children in the first 1000 d and provided micronutrient-fortified food rations; nutrition, health, and hygiene behavior change communication; and health system-strengthening activities.
Program impact was assessed using a cluster-randomized controlled trial with repeated cross-sections: 2010 (baseline, children 4-41.9 mo), 2012 (follow-up during implementation, children 4-23.9 mo), and 2014 (follow-up postimplementation, children 24-41.9 mo). Sixty villages were randomly assigned to 4 groups with varying timing and duration of food rations: pregnancy-24 mo; pregnancy-18 mo; 0-24 mo; and control, no direct Tubaramure benefits. Treatment groups were pooled and compared with control using difference-in-difference estimates. We examined impact pathways by assessing program impacts on intermediary variables and their associations with development outcomes.
At first follow-up, Tubaramure positively affected language (0.4 milestones, P < 0.05) but not motor development among children aged 4-23.9 mo. Among the 12-23.9 mo age subgroup, the program positively affected language (0.7 milestones, P < 0.01) and motor (0.6 milestones, P = 0.08) development. At second follow-up, among children aged 24-41.9 mo, Tubaramure marginally affected motor development (0.4 milestones, P = 0.09). In age subgroup analyses, program impacts were limited to children aged 24-29.9 mo [0.4 motor (P = 0.09) and 1.0 language (P < 0.01) milestones]. Pathway analyses revealed significant positive impacts on diet, health, and nutritional indicators of children aged 12-23.9 mo and health and nutritional indicators of children aged 24-29.9 mo, supporting the plausibility of program impacts on child development.
Tubaramure had small positive impacts on children's motor and language development through multiple pathways, demonstrating the role multisectoral nutrition programs can play in improving children's development. This trial was registered at clinicaltrials.gov as NCT01072279.
儿童发育受妊娠和儿童期多个因素的影响。多部门方案解决这些因素可能会改善儿童的发育。
我们评估了一项以食品为基础的多部门营养方案(Tubaramure)对儿童(4-41.9 月龄)运动和语言发育的影响。Tubaramure 针对的是布隆迪妇女和 1000 天内的儿童,提供强化微量营养素的食物配给;营养、健康和个人卫生行为改变沟通;以及加强卫生系统的活动。
采用群组随机对照试验进行方案效果评估,采用重复横断面:2010 年(基线,4-41.9 月龄儿童)、2012 年(实施期间的随访,4-23.9 月龄儿童)和 2014 年(实施后的随访,24-41.9 月龄儿童)。60 个村庄被随机分配到 4 个组,各组的食物配给时间和持续时间不同:妊娠至 24 个月;妊娠至 18 个月;0-24 个月;和对照组,无直接 Tubaramure 获益。将治疗组进行合并,并用差异-差异估计值与对照组进行比较。我们通过评估方案对中间变量的影响及其与发育结果的关联,来检验方案影响的途径。
在第一次随访时,Tubaramure 对 4-23.9 月龄儿童的语言发育有积极影响(0.4 个里程碑,P<0.05),但对运动发育没有影响。在 12-23.9 月龄亚组中,该方案对语言发育(0.7 个里程碑,P<0.01)和运动发育(0.6 个里程碑,P=0.08)均有积极影响。在第二次随访时,24-41.9 月龄儿童的运动发育有边缘性改善(0.4 个里程碑,P=0.09)。在年龄亚组分析中,方案的影响仅限于 24-29.9 月龄儿童[0.4 个运动(P=0.09)和 1.0 个语言(P<0.01)里程碑]。路径分析显示,12-23.9 月龄儿童的饮食、健康和营养指标以及 24-29.9 月龄儿童的健康和营养指标有显著的积极影响,这支持了多部门营养方案对儿童发育的影响的合理性。
Tubaramure 通过多种途径对儿童的运动和语言发育产生了较小的积极影响,证明了多部门营养方案在改善儿童发育方面可以发挥作用。本试验在 clinicaltrials.gov 注册,编号为 NCT01072279。