Finnish Institute of Occupational Health, Topeliuksenkatu 41 a A, Helsinki, Finland.
Arch Dis Child. 2011 Jul;96(7):635-42. doi: 10.1136/adc.2010.201970. Epub 2011 May 9.
To examine whether breast feeding is associated with behavioural development in children aged 5 years.
The authors used data from a large, prospective, nationally representative UK cohort, the Millennium Cohort Study.
10 037 mother-child pairs from white ethnic background (9525 term and 512 preterm children) were included in the analyses.
Duration of breast feeding (at all or exclusively) was ascertained from parental interview at study baseline, when the children were aged 9 months. Child behaviour was assessed using a parent-completed questionnaire, the Strengths and Difficulties Questionnaire (SDQ). The authors used logistic regression to investigate the associations of breastfeeding duration with abnormal parent-rated SDQ total and subscores at age 5 in term and preterm children separately.
Abnormal SDQ scores were less common in term children (n=1129/9525, 12%) than pre-term (n=78/512, 15%) children. Term children breast fed for 4 months or longer (n=2741/9525, 29%) had lower odds of an abnormal total SDQ score (multivariable-adjusted OR compared with never breastfed children (n=3292/9525, 35%) 0.67, 95% CI: 0.54 to 0.83). This effect was similar for all the SDQ subscores. In preterm children, longer duration of breast feeding was generally associated with lower odds of abnormal SDQ total and subscores but the effect estimates were imprecise. The associations between exclusive breast feeding and abnormal SDQ scores were similar to those of any breast feeding and abnormal SDQ scores.
The findings suggest that, at least in term children, longer duration of breast feeding is associated with fewer parent-rated behavioural problems in children aged 5 years.
研究母乳喂养与 5 岁儿童行为发育之间的关系。
作者使用了来自英国一项大型、前瞻性、全国代表性队列研究——千禧年队列研究的数据。
共纳入 10037 对来自白人种族背景的母婴（9525 例足月产儿和 512 例早产儿）进行分析。
在儿童 9 个月大时，通过父母访谈来确定母乳喂养（是否完全母乳喂养或仅母乳喂养）的持续时间。采用父母填写的问卷——长处和困难问卷（SDQ）来评估儿童的行为。作者采用逻辑回归来分别分析母乳喂养持续时间与足月产和早产儿 5 岁时异常的父母评定 SDQ 总分和子评分之间的关系。
足月产儿童（9525 例中有 1129 例，占 12%）异常 SDQ 评分的比例低于早产儿（512 例中有 78 例，占 15%）。母乳喂养 4 个月或以上的足月产儿童（9525 例中有 2741 例，占 29%）发生异常 SDQ 总分的可能性较低（与从未母乳喂养的儿童相比，多变量调整后的 OR（95%CI）为 0.67（0.54 至 0.83）。这种影响在所有 SDQ 子评分中均相似。在早产儿中，母乳喂养时间越长，通常异常 SDQ 总分和子评分的可能性越低，但效应估计值不精确。纯母乳喂养与异常 SDQ 评分之间的关联与任何母乳喂养与异常 SDQ 评分之间的关联相似。
研究结果表明，至少在足月产儿童中，母乳喂养时间越长，5 岁儿童的父母评定行为问题越少。
