Department of Human Nutrition and Consumer Sciences, Sokoine University of Agriculture, Morogoro, Tanzania.
Department of Human Nutrition and Consumer Sciences, Sokoine University of Agriculture, Morogoro, Tanzania.
J Nutr Educ Behav. 2023 Jul;55(7):493-508. doi: 10.1016/j.jneb.2023.04.002. Epub 2023 May 26.
To evaluate the effectiveness of a nutrition education package on feeding practices, nutrient intakes and growth of infants in rural Tanzania.
Cluster-randomized controlled trial in 18 villages allocated to nutrition education package (n = 9) or routine health education (n = 9 villages), measured at baseline (6 months) and end of the trial (12 months).
Mpwapwa district.
Infants aged 6-12 months and their mothers.
INTERVENTION(S): Six months of nutrition education package (group education, counseling, cooking demonstrations) and regular home visits by village health workers.
MAIN OUTCOME MEASURE(S): Primary outcome measure was the mean change in length-for-age z-scores. Secondary outcomes included mean changes in weight-for-length z-scores (WLZ), intakes of energy, fat, iron and zinc, the proportion of children consuming foods from ≥ 4 food groups (ie, dietary diversity) and consuming the recommended number of semisolid/soft meals and snacks per day (ie, meal frequency).
Multilevel mixed-effects regression models.
Mean change in length-for-age z-scores (β = 0.20, P = 0.02), energy (in kcal) (β = 43.8, P = 0.02), and fat (in grams) (β =2.7, P = 0.03) intakes were significant in the intervention but not in the control group. There was no effect on iron and zinc intakes. More infants in the intervention than the control group consumed meals from ≥ 4 food groups (71.8% vs 45.3%, P = 0.002). The mean increase in meal frequency (β = 0.29, P = 0.02) and dietary diversity (β = 0.40, P = 0.01) were more significant in the intervention than control.
The nutrition education package is feasible and can be implemented with high coverage, demonstrating the potential to improve feeding practices, nutrient intake and growth in rural Tanzania.
评估营养教育套餐对坦桑尼亚农村地区婴儿喂养行为、营养素摄入和生长的影响。
在 18 个村庄进行了群组随机对照试验，将其分为营养教育套餐组（n=9）和常规健康教育组（n=9 个村庄），在基线（6 个月）和试验结束时（12 个月）进行测量。
姆万扎区。
6-12 个月大的婴儿及其母亲。
为期 6 个月的营养教育套餐（小组教育、咨询、烹饪示范）和由乡村卫生工作者定期家访。
主要结果测量指标为年龄别身长 Z 评分的平均变化。次要结果包括体重身长 Z 评分（WLZ）的平均变化、能量、脂肪、铁和锌的摄入量、摄入来自≥4 个食物组的儿童比例（即饮食多样性）以及每天摄入推荐数量的半固体/软食和零食的比例（即进餐频率）。
多层次混合效应回归模型。
干预组的年龄别身长 Z 评分（β=0.20，P=0.02）、能量（千卡）（β=43.8，P=0.02）和脂肪（克）（β=2.7，P=0.03）摄入量有显著变化，但对照组没有变化。铁和锌的摄入量没有影响。干预组中摄入来自≥4 个食物组的婴儿比例高于对照组（71.8%比 45.3%，P=0.002）。干预组的进餐频率（β=0.29，P=0.02）和饮食多样性（β=0.40，P=0.01）的平均增加幅度大于对照组。
营养教育套餐是可行的，可以高覆盖率实施，显示出改善坦桑尼亚农村地区喂养行为、营养素摄入和生长的潜力。
