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Parental weight and its relation to infant feeding patterns and infant obesity
Insights
Parental weight status significantly impacts infant weight by six months. Children of overweight parents face a higher risk of becoming overweight, even without observed behavioral differences.
Area of Science:
- Pediatrics
- Public Health
- Human Development
Background:
- Parental obesity is a growing public health concern.
- Early life factors, including parental weight status, may influence childhood obesity.
- Understanding determinants of infant weight gain is crucial for prevention strategies.
Purpose of the Study:
- To investigate mother-infant feeding behavior as a determinant of infant obesity.
- To examine the relationship between parental weight status and infant growth trajectories.
- To assess mother-infant interaction during feeding across different parental weight groups.
Main Methods:
- Longitudinal study of 78 primiparous mother-infant dyads.
- Group assignment based on parental weight status (normal, mixed, overweight).
- Infant anthropometric measurements (weight, length) at birth and 6 months.
- Observation of mother-infant feeding interactions at multiple postpartum time points.
Main Results:
- No significant differences in mother-infant feeding behavior or interaction were found across groups.
- Infant weight status differed significantly by 6 months of age, correlating with parental weight.
- A higher proportion of infants in the overweight parental group were at or above the 90th percentile for weight at 6 months.
Conclusions:
- Parental weight status, not feeding behavior, appears to be a significant risk factor for infant overweight by 6 months.
- Children of overweight parents are at increased risk of becoming overweight early in life.
- Further research is needed to elucidate the mechanisms linking parental obesity to infant weight gain.
Abstract:
Mother-infant feeding behaviour as a possible determinant of obesity was studied. Seventy-eight healthy primiparous couples and their newborn children were divided into three groups according to parents' weight status (normal weight parents; one overweight and one normal weight parent; both parents overweight). Infants' weight and length measurements were obtained at birth and at 6 months of age. Mother-infant dyads were observed during feeding sessions at 55-77 hr after birth, at 2 weeks, 1, 2, 4 and 6 months postpartum. Feeding behaviour of mother and infant did not differ, nor did mother-infant interaction differ between the three groups throughout the observation period. However, infant weight status, although not different at birth, differed significantly at 6 months of age. Bartholomew's test showed the proportion of infants greater than or equal to 90%il increased significantly from infants of normal weight parents to infants of one overweight and one normal weight parent, to infants both parents of whom were overweight (chi 2 = 6.904, c = 0.44, P less than or equal to 0.01). While data of this study do not show any behavioural differences between overweight and normal weight parents and their offspring, they confirm results reported by other researchers showing children of overweight parents at risk of becoming overweight at 6 months of age as well.