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Circulating thyroxine levels in institutionalized children.

N I Perassi, I Loyber

    Archives Internationales De Physiologie Et De Biochimie
    |December 1, 1980
    PubMed
    Summary
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    Institutionalized children (IC) show lower normalized thyroxine (T4N) levels compared to control children (CC). Factors like confinement duration and age significantly impact these thyroid hormone differences, particularly in girls.

    Area of Science:

    • Pediatric Endocrinology
    • Child Psychology
    • Environmental Health

    Background:

    • Thyroid hormones, such as thyroxine (T4), are crucial for child development.
    • Institutionalized children may face environmental factors impacting physiological markers.
    • Understanding thyroid function in institutionalized populations is important for health assessments.

    Purpose of the Study:

    • To compare circulating total thyroxine (T4) and normalized thyroxine (T4N) levels in institutionalized children (IC) versus control children (CC).
    • To investigate the influence of confinement duration, chronological age, and age at admission on T4N levels in IC.

    Main Methods:

    • Cross-sectional study involving 41 institutionalized children and 22 control children, aged 2-6 years.
    • Measurement of serum total thyroxine (T4) and calculation of normalized thyroxine (T4N).

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  • Statistical analysis to compare groups and identify influencing factors.

    • Main Results:

    • No significant difference in total thyroxine (T4) levels between IC and CC.
    • Significantly lower normalized thyroxine (T4N) levels observed in IC compared to CC.
    • Confinement duration (less than 6 months, more than 24 months), chronological age (4-year-olds), and age at admission (before 1 year, after 4 years) were significant influencing factors.
    • Girls exhibited more significant differences in T4N levels compared to boys.

    Conclusions:

    • Institutionalization is associated with reduced normalized thyroxine (T4N) levels in young children.
    • Environmental and developmental factors within institutional settings significantly modulate thyroid hormone status.
    • These findings highlight the need for monitoring thyroid function in institutionalized children, with particular attention to girls and specific age/confinement parameters.