Longitudinal Study of the Association between Breastfeeding and neuromotor Development in Low Birth Weight Infants

2019 Fiscal Year Final Research Report

• Project/Area Number: 15K11716
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Lifelong developmental nursing
• Research Institution: Wakayama Medical University (2018-2019); Yamanashi Prefectural University (2015-2017)
• Principal Investigator: Inoue Miyuki 和歌山県立医科大学, 保健看護学部, 教授 (80347351)
• Co-Investigator(Kenkyū-buntansha): 丸山 憲一 (丸山憲一) 群馬県衛生環境研究所, 研究企画係, 研究員 (80728741)
• Project Period (FY): 2015-04-01 – 2020-03-31
• Keywords: 超・極低出生体重児 / 神経運動発達 / 母乳 / 母親の学歴 / 新生児看護

Outline of Final Research Achievements

The aim of this study was to clarify the longitudinal relationship between breast-feeding during NICU admission and neuromotor development at 18 months and 3 years of age in low-birth-weight infants weighing less than 1500 g at birth.
The results showed that "No artificial ventilation (intubation)" "High Breastmilk Percentage of Total Enteral Nutrition during NICU Hospitalization" and "Enteral nutrition 100 ml/kg/day" were associated with development test values at 18 months. Associated at age 3 years was "be highly educated by one's mother". These results indicate that at 18 months of age, development was influenced by breast-feeding and the physical condition of the newborn, but at 36 months of age, when family life became longer, it was influenced by the higher education of the mother, who was in a human rearing environment.

Free Research Field

小児看護学

Academic Significance and Societal Importance of the Research Achievements

本研究から、子どもの発達のためには、新生児期の身体的な状態だけではなく、母乳栄養、母親の学歴などの養育環境が子どもの発達に影響していることが示唆された。本研究の結果は、出生体重1500g未満の低出生体重児の成長・発達を促進のために母乳栄養は重要となり、母乳栄養を促進するためのエビデンスとなる。また、家庭での生活が長くなると「母親の教育歴が高い」ことが子どもの発達に影響しており、家庭内での母親の関り方により子どもの発達が促進できると考えられる。