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Importance of periodic measurements in evaluating feeding programmes
Insights
Periodic measurements are crucial for assessing feeding program effectiveness due to significant individual growth variations. Longitudinal studies reveal alternating growth priorities, highlighting the need for detailed tracking in children.
Area of Science:
- Pediatrics
- Nutrition Science
- Growth Monitoring
Background:
- Evaluating the impact of feeding programs requires understanding growth dynamics.
- Significant "within-child" variation in growth increments can obscure overall program effects.
Purpose of the Study:
- To demonstrate the importance of periodic measurements in assessing feeding program impacts.
- To analyze growth patterns and correlations in children from different socio-economic backgrounds.
Main Methods:
- Longitudinal study design involving 273 children across two kindergartens (one with a feeding program, one without).
- Three sets of weight and height measurements taken over a 7-month period.
- Statistical analysis of weight and height increments, including simple and cross-correlations.
Main Results:
- Normal children showed significant weight gain, while malnourished children exhibited significant height gain.
- Overall program significance did not always translate to significance in shorter, equal time intervals.
- Weight increment in one period correlated significantly with height increment in the subsequent period, indicating alternating growth priorities.
Conclusions:
- Periodic measurements are essential for accurately evaluating feeding programs due to inherent growth variability.
- Longitudinal growth studies are vital for a comprehensive understanding of child development and program efficacy.
- Observed alternating growth priorities suggest complex physiological regulation influencing child development.
Abstract:
Attempts were made to show that periodic measurements are important for evaluating impact of feeding programmes as considerable "within variation" in increments exists which cannot be overlooked. From two socio-economic classes two kindergartens were selected one of which was implementing a feeding programme while the other was not. A total of 273 children were measured for weight and height, three times during the period of 7 months. Normal children showed significant gain in weight while malnourished children showed significant gain in height. The significance in weight (or height) increment at the end of the feeding programme did not necessarily mean that the significance could be obtained in each period even of equal time interval. Simple and cross correlations in increment revealed that weight increment in one period was significantly associated with height increment in the following period suggesting alternating priorities of the body for growth. Carefully planned longitudinal growth studies are therefore necessary for better understanding of growth process and thereby for proper evaluation of feeding programmes.