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Population morbidity screening--practical methodology for small populations.

N Bankole, J S Fry

    Archives of Disease in Childhood
    |July 1, 1984
    PubMed
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    A study in Nigerian communities found significant growth discrepancies in children over three years old, potentially linked to high tuberculosis rates. A practical Z-value analysis method is proposed for small sample sizes.

    Area of Science:

    • Pediatric Health
    • Epidemiology
    • Biostatistics

    Background:

    • Child health assessments in rural Nigerian communities revealed significant deviations from established growth standards.
    • The observed growth attainment misfit was more pronounced in children older than three years, worsening with age.

    Purpose of the Study:

    • To identify the cause of growth standard deviations in Nigerian children.
    • To present a practical methodology for analyzing small sample sizes in growth studies.

    Main Methods:

    • Comparison of sample data against local longitudinal growth attainment standards.
    • Investigation of high tuberculosis incidence as a potential cause for growth deviations.
    • Application of Z-value analysis for small sample size assessment.

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    Main Results:

    • A gross lack of fit was observed between the study sample and local growth standards.
    • The degree of misfit increased with age, particularly in children over three years old.
    • High incidence of tuberculosis was identified as a likely factor contributing to the observed deviations.

    Conclusions:

    • Tuberculosis is a significant factor affecting child growth in the studied Nigerian communities.
    • Z-value analysis offers a practical and accessible method for analyzing growth data in small pediatric samples.
    • The findings highlight the need for targeted health interventions addressing tuberculosis in rural child populations.