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. 2009 Aug 5:6:51.
doi: 10.1186/1479-5868-6-51.

Infant temperament contributes to early infant growth: A prospective cohort of African American infants

Meghan M Slining  1 , Linda Adair, Barbara Davis Goldman, Judith Borja, Margaret Bentley
Affiliations

Infant temperament contributes to early infant growth: A prospective cohort of African American infants

Meghan M Slining et al. Int J Behav Nutr Phys Act. .

Abstract

Background: Prospective studies linking infant temperament, or behavioral style, to infant body composition are lacking. In this longitudinal study (3 to 18 months), we seek to examine the associations between two dimensions of infant temperament (distress to limitations and activity level) and two anthropometric indicators (weight-for-length z-scores (WLZ) and skin fold (SF) measures) in a population at high risk of overweight.

Methods: Data are from the Infant Care and Risk of Obesity Project, a longitudinal study of North Carolina low income African American mother-infant dyads (n = 206). Two temperament dimensions were assessed using the Infant Behavior Questionnaire-Revised. A high distress to limitations score denotes an infant whose mother perceives that s/he often cries or fusses, and a high activity level score one who moves his/her limbs and squirms frequently. Cross-sectional analyses were conducted using ordinary least squares regression. Fixed effects longitudinal models were used to estimate anthropometric outcomes as a function of time varying infant temperament.

Results: In longitudinal models, increased activity levels were associated with later decreased fatness and WLZ. In contrast, high levels of distress to limitations were associated with later increased fatness at all time points and later increased WLZ at 12 months.

Conclusion: Infant temperament dimensions contribute to our understanding of the role of behavior in the development of the risk of overweight in the formative months of life. Identification of modifiable risk factors early in life may help target strategies for establishing healthy lifestyles prior to the onset of overweight.

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Figures

Figure 1
Figure 1
Predicted Weight-for-length Z-score by lagged 25th, 50th, and 75th percentiles of Activity* Level and infant age. * Activity level subscale from the Infant Behavior Questionnaire-Revised.
Figure 2
Figure 2
Predicted Weight-for-length Z-score by lagged Distress to Limitations* level and infant age. * Distress to limitations subscale from the Infant Behavior Questionnaire-Revised.
See this image and copyright information in PMC

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