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1Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea.
2Department Clinical Laboratory Science, Dong-Eui Institute of Technology, Busan, Korea.
3Department of Biochemistry, Kosin University College of Medicine, Busan, Korea.
4Cancer Research Institute, Kosin University College of Medicine, Busan, Korea.
Copyright © 2017 Korean Endocrine Society
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
CONFLICTS OF INTEREST: No potential conflict of interest relevant to this article was reported.
Median UIC, μg/L | Iodine intake | Iodine nutritional status for school-age children (≥6 years) |
---|---|---|
<20 | Insufficient | Severe iodine deficiency |
20–49 | Insufficient | Moderate iodine deficiency |
50–99 | Insufficient | Mild iodine deficiency |
100–199 | Adequate | Optimal |
200–299 | Above requirements | May pose a slight risk of more than adequate iodine intake |
≥300 | Excessive | Risk of adverse health consequences (iodine-induced hyperthyroidism, autoimmune thyroid disease) |
Age, yr | Height, cm | Weight, kg | UIC, µg/L | ||
---|---|---|---|---|---|
Mean±SD | Median | Range | |||
7 (n=3) | 118.8±6.9 | 23.4±4.9 | 907.6±567.6 | 699.2 | 473.6–1,549.9 |
8 (n=101) | 127.1±5.5 | 27.8±6.1 | 635.1±785.7 | 426.4 | 58.9–5,236.4 |
9 (n=88) | 132.7±6.3 | 32.8±7.6 | 843.6±904.7 | 465.8 | 94.5–4,705.9 |
10 (n=4) | 137.7±9.7 | 28.8±5.6 | 258.5±176.0 | 200.4 | 128.5–504.5 |
11 (n=94) | 144.9±7.3 | 40.0±9.7 | 723.9±719.6 | 471.9 | 39.2–4,589.3 |
12 (n=83) | 150.1±7.4 | 42.9±8.6 | 844.2±1,028.0 | 496.2 | 89.6–6,695.9 |
Total (n=373) | 138.1±11.4 | 35.4±10.0 | 751.3±855.8 | 458.2 | 39.2–6,695.9 |
Variable | Male | Female | P value |
---|---|---|---|
Total | 0.423 | ||
Number | 182 (48.8) | 191 (51.2) | |
Height, cm | 137.4±11.0 | 138.8±11.8 | |
Weight, kg | 36.2±10.9 | 34.7±9.1 | |
UIC, µg/L | 770.7±926.5 | 732.9±784.6 | |
MUI, µg/L | 0454.4 | 0465.7 | |
Group I (7–9 years) | 0.985 | ||
Number | 105 (54.7) | 87 (45.3) | |
Height, cm | 130.3±6.1 | 128.6±7.2 | |
Weight, kg | 31.2±7.3 | 28.6±7.1 | |
UIC, µg/L | 735.9±864.7 | 733.7±820.8 | |
MUI, µg/L | 0458.2 | 0439.7 | |
Group II (10–12 years) | 0.672 | ||
Number | 77 (42.5) | 104 (57.5) | |
Height, cm | 147.1±8.5 | 147.2±7.5 | |
Weight, kg | 42.9±11.5 | 39.8±7.3 | |
UIC, µg/L | 818.1±1,008.4 | 732.3±756.9 | |
MUI, µg/L | 439.1 | 500.1 |
UIC, urinary iodine concentration.
Values are expressed as mean±SD. UIC, urine iodine concentration; SD, standard deviation.
Values are expressed as number (%) or mean±SD. UIC, urine iodine concentration; MUI, median urinary iodine.