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Using weight-for-age for predicting wasted children in Cameroon
Georges Nguefack-Tsague1, Agatha Tanya Nguti Kien, Charles Ntungwen Fokunang
1Department of Public Health, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Cameroon.
Insights
Weight-for-age can accurately predict child wasting in Cameroon, where height measurements are often unavailable. This finding aids in early identification and intervention for acute undernutrition, reducing mortality and healthcare costs.
Area of Science:
- Pediatric Nutrition
- Public Health
- Biostatistics
Background:
- Height measurement tools are scarce and often inaccurate in Cameroonian health centers.
- Weight-for-age data is more readily available and frequently collected.
- Accurate assessment of child wasting is crucial for timely nutritional interventions.
Purpose of the Study:
- To develop statistical models for predicting child wasting using weight-for-age data.
- To address the challenge of unavailable or inaccurate height measurements in Cameroon.
- To provide a reliable method for identifying wasted children in resource-limited settings.
Main Methods:
- Utilized data from the 2004 Cameroon Demographic and Health Surveys (DHS).
- Included 3742 children aged 0-59 months in a nationwide cross-sectional survey.
- Employed discriminant statistical methods to build predictive models.
Main Results:
- A strong association was found between underweight and wasting.
- Statistical models demonstrated high accuracy with test error rates below 5%.
- The Area Under the Curve (AUC) for the Receiver Operating Characteristic (ROC) analysis was 0.86, indicating good predictive performance.
Conclusions:
- Weight-for-age is a viable and accurate predictor of child wasting in Cameroon.
- This method is particularly useful where height measurements are not feasible.
- Findings support the development of nutrition interventions to combat acute undernutrition and reduce associated morbidity and mortality.
Introduction:
The equipment for taking body weights (scales) are more frequently used in Cameroon health centres than measuring boards for heights. Even when the later exist there are some difficulties inherent in their qualities; thus the height measurement is not always available or accurate. Our objective for this study was to construct statistical models for predicting wasting from weight-for-age.
Methods:
3742 children aged 0 to 59 months were enrolled in a cross-sectional household survey (2004 Cameroon Demographic and Health Surveys (DHS)) covering the entire Cameroon national territory.
Results:
There were highly significant association between underweight and wasting. For all discriminant statistical methods used, the test error rates (using an independent testing sample) were less than 5%; the Area Under Curve (AUC) using the Receiver Operating Characteristic (ROC) was 0.86.
Conclusion:
The study showed that weight-for-age can be used for accurately classifying a child whose wasting status is unknown. The result is useful in Cameroon as too often the height measurements may not be feasible, thus the need for estimating wasted children. This study provides baseline information that will help to design a preliminary pivotal study on an immediate nutrition intervention for acute undernutrition. Its complications that could lead to morbidity and mortality can be greatly reduced or set up a management control strategy that will go a long way in reducing the cost of health care in Cameroon.
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