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Urinary iodine and thyroid volume in a Swedish population.
M Milakovic1, G Berg, E Nyström
1Department of Primary Health Care, Mölnlycke Primary Health Care and Research Centre, Göteborg, Sweden.
Journal of Internal Medicine
|April 14, 2004
Summary
Sweden's long-standing iodine supplementation program ensures adequate iodine intake across all age groups, as confirmed by urinary iodine levels and thyroid volume measurements in a semi-rural community.
Area of Science:
- Endocrinology
- Public Health
- Nutritional Science
Background:
- Sweden has maintained an iodine supplementation program since 1936.
- Assessing the current efficacy of this long-term public health initiative is crucial.
Purpose of the Study:
- To evaluate the ongoing effectiveness of Sweden's iodine supplementation program.
- To assess iodine status and thyroid health in a semi-rural population.
Main Methods:
- Cross-sectional population screening across three age groups: children (7-9 years), teenagers (15-17 years), and adults (60-65 years).
- Measurements included urinary iodine concentration (spectrophotometry) and thyroid volume (ultrasonography).
Main Results:
- Median urinary iodine concentrations indicated adequate iodine intake in all studied age groups (194-246 μg/L).
- Thyroid volumes were generally within normal limits, though some individuals exhibited enlarged thyroid glands, including one case of goiter in a child.
Conclusions:
- The iodine supplementation program in Sweden appears to maintain sufficient iodine intake from childhood through adulthood.
- Continued monitoring is recommended, particularly for individuals with enlarged thyroid glands.
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