Table 1. UIC, BMI, BSA and Tvols (median, 25th, 75th ) of children aged 6–12 years in Zhejiang province, China.
| Age groupa | Gender | n |
UIC |
BMI (kg/m2) | BSA (m2) | Tvol (ml) | |||
|---|---|---|---|---|---|---|---|---|---|
| Median (ug/l) | (<100 μg/l (%) | 100–300 μg/l (%) | >300 μg/l) (%) | ||||||
| 1 | Boys | 209 | 174.3 (114.2, 247.8) | 49 (16.9) | 186 (64.1) | 55 (19.0) | 16.1 (14.8, 18.3) | 0.96 (0.87, 1.08)b | 2.69 (2.05, 3.38)b |
| Girls | 207 | 159.0 (110.5, 260.0) | 56 (20.9) | 164 (61.2) | 48 (17.9) | 16.0 (14.7, 18.1)c | 0.97 (0.88, 1.08)c | 2.78 (2.02, 3.42)c | |
| 2 | Boys | 155 | 161.4 (111.2, 234.8) | 41 (17.6) | 147 (63.1) | 45 (19.3) | 17.8 (16.2, 19.9) | 1.22 (1.14, 1.42)b | 3.75 (2.82, 5.04)b |
| Girls | 158 | 175.4 (104.9, 241.5) | 45 (20.5) | 133 (60.5) | 42 (19.1) | 17.1 (15.6, 19.2)c | 1.22 (1.09, 1.36)c | 3.99 (3.05, 5.25)c | |
Abbreviations: BMI, body mass index; BSA, body surface area; Tvol, thyroid volume; UIC, urinary iodine concentration.
a
(age group 1: 6–9-year-old children; age group 2: 10–12-year-old children).
b
Boys: age group 1 vs 2 P<0.01.
c
Girls: age group 1 vs 2 P<0.01.