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Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
Lowest neonatal serum sodium predicts sodium intake in low birth weight children
Adi Shirazki1, Zalman Weintraub, Dan Reich
1Department of Psychology, University of Haifa, Haifa, Israel 31905.
Insights
Low birth weight children with lower neonatal serum sodium levels show increased dietary sodium intake later in life. Perinatal sodium loss significantly impacts long-term sodium consumption in these children.
Area of Science:
- Pediatrics
- Nutrition Science
- Neonatology
Background:
- Low birth weight (LBW) is associated with various long-term health challenges.
- Neonatal factors may influence later-life dietary preferences and habits.
- Understanding factors affecting sodium intake is crucial for managing cardiovascular health.
Purpose of the Study:
- To investigate the long-term relationship between neonatal factors and salt appetite in low birth weight children.
- To determine if neonatal diuretic treatment or lowest serum sodium level (NLS) predicts later dietary sodium intake.
Main Methods:
- Forty-one low birth weight children (aged 8-15 years) were assessed.
- Evaluations included salt and sweet preference tests, snack intake, and dietary questionnaires.
- Neonatal records, including lowest serum sodium level (NLS), were analyzed.
Main Results:
- Sodium appetite was not linked to neonatal diuretic treatment, birth weight, or gestational age.
- A significant inverse correlation was found between reported dietary sodium intake and neonatal NLS (r = -0.445, P < 0.005).
- This relationship was consistent across genders and ethnicities.
Conclusions:
- Low neonatal serum sodium levels predict increased dietary sodium intake in low birth weight children.
- Perinatal sodium loss, regardless of cause, is a significant contributor to long-term sodium intake.
- Early life sodium balance may have lasting effects on dietary habits.
Abstract:
Forty-one children aged 10.5 +/- 0.2 years (range, 8.0-15.0 yr), born with low birth weight of 1,218.2 +/- 36.6 g (range, 765-1,580 g) were selected from hospital archives on the basis of whether they had received neonatal diuretic treatment or as healthy matched controls. The children were tested for salt appetite and sweet preference, including rating of preferred concentration of salt in tomato soup (and sugar in tea), ratings of oral spray (NaCl and sucrose solutions), intake of salt or sweet snack items, and a food-seasoning, liking, and dietary questionnaire. Results showed that sodium appetite was not related to neonatal diuretic treatment, birth weight, or gestational age. However, there was a robust inverse correlation (r = -0.445, P < 0.005) between reported dietary sodium intake and the neonatal lowest serum sodium level (NLS) recorded for each child as an index of sodium loss. The relationship of NLS and dietary sodium intake was found in both boys and girls and in both Arab and Jewish children, despite marked ethnic differences in dietary sources of sodium. Hence, low NLS predicts increased intake of dietary sodium in low birth weight children some 8-15 yr later. Taken together with other recent evidence, it is now clear that perinatal sodium loss, from a variety of causes, is a consistent and significant contributor to long-term sodium intake.
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