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Thyroid function tests in elderly Finnish men.

A Nissinen, S L Kivelä, J Pekkanen

    Acta Medica Scandinavica
    |January 1, 1986
    PubMed
    Summary
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    Thyroid function tests, including total thyroxine (T4), triiodothyronine (T3), and thyrotropin (TSH), showed no regional differences in Finnish men aged 65-84. However, T3 levels decreased with age, and TSH peaked in the 70-74 age group.

    Area of Science:

    • Endocrinology
    • Gerontology
    • Public Health

    Background:

    • Thyroid hormones play a crucial role in metabolism and overall health, particularly in aging populations.
    • Geographical variations in environmental factors can influence thyroid function.
    • Understanding thyroid function in older adults is essential for maintaining health and preventing disease.

    Purpose of the Study:

    • To investigate potential geographical differences in thyroid function tests among elderly Finnish men.
    • To examine the relationship between age and thyroid hormone levels (T4, T3, TSH) in this population.

    Main Methods:

    • Cross-sectional study involving 65-84-year-old Finnish men from eastern and southwestern Finland.
    • Serum levels of total thyroxine (T4), triiodothyronine (T3), and thyrotropin (TSH) were measured.

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  • Statistical analysis was performed to compare means between regions and assess age-related trends.

    • Main Results:

    • No significant differences were observed in mean serum T4, T3, or TSH levels between eastern and southwestern Finland.
    • Serum T4 levels did not show a correlation with age.
    • Serum T3 levels demonstrated a decline with increasing age.
    • Serum TSH levels peaked in the 70-74 year age group in both regions.

    Conclusions:

    • Geographical location in Finland does not appear to influence thyroid hormone levels in elderly men.
    • Age-related changes in thyroid function are evident, with decreasing T3 and a specific peak in TSH in older age groups.