在近日的PLoS ONE上刊登了一项研究称，英国研究人员发现，靠配方奶粉喂养的婴儿比较不爱哭，也比较好哄，但长大后也更容易超重。
来自剑桥大学的研究人员日前研究了300个英国婴儿的行为。观察发现，吃配方奶粉的孩子比较容易满足，吃母乳的孩子比较爱哭，不容易入睡。
研究人员解释，靠奶粉喂养的孩子每次都能吃饱，不会有不够吃的情况出现，于是这些婴儿就养成了靠吃来获得满足的习惯，但长大后也更容易肥胖。而吃母乳的孩子爱哭闹是因为他们希望妈妈在身边陪伴，也是正常的行为，母亲不应因此放弃母乳喂养。(生物谷 Bioon.com)
doi:10.1371/journal.pone.0029326
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Breastfeeding and Infant Temperament at Age Three Months
Blandine de Lauzon-Guillain,, Katrien Wijndaele, Matthew Clark, Carlo L. Acerini, Ieuan A. Hughes, David B. Dunger, Jonathan C. Wells, Ken K. Ong,
Background & Methods
To examine the relationship between breastfeeding and maternally-rated infant temperament at age 3 months, 316 infants in the prospective Cambridge Baby Growth Study, UK had infant temperament assessed at age 3 months by mothers using the Revised Infant Behavior Questionnaire, which produces scores for three main dimensions of temperament derived from 14 subscales. Infant temperament scores were related to mode of infant milk feeding at age 3 months (breast only; formula milk only; or mixed) with adjustment for infant's age at assessment and an index of deprivation.
Results
Infant temperament dimension scores differed across the three infant feeding groups, but appeared to be comparable between exclusive breast-fed and mixed-fed infants. Compared to formula milk-fed infants, exclusive breast-fed and mixed-fed infants were rated as having lower impulsivity and positive responses to stimulation (adjusted mean [95% CI] “Surgency/Extraversion” in formula-fed vs. mixed-fed vs. breast-fed groups: 4.3 [4.2–4.5] vs. 4.0 [3.8–4.1] vs. 4.0 [3.9–4.1]; p-heterogeneity = 0.0006), lower ability to regulate their own emotions (“Orienting/Regulation”: 5.1 [5.0–5.2], vs. 4.9 [4.8–5.1] vs. 4.9 [4.8–5.0]; p = 0.01), and higher emotional instability (“Negative affectivity”: 2.8 [2.6–2.9] vs. 3.0 [2.8–3.1] vs. 3.0 [2.9–3.1]; p = 0.03).
Conclusions
Breast and mixed-fed infants were rated by their mothers as having more challenging temperaments in all three dimensions; particular subscales included greater distress, less smiling, laughing, and vocalisation, and lower soothability. Increased awareness of the behavioural dynamics of breastfeeding, a better expectation of normal infant temperament and support to cope with difficult infant temperament could potentially help to promote successful breastfeeding.
