Table 3.
Medians (IQR) of urinary iodine concentration (UIC) and daily iodine intake (DII) by BMI class in the whole study population and by gender.
| Whole Population | BMI < 25 Kg/m2 | BMI 25–29.99 Kg/m2 | BMI ≥ 30 Kg/m2 |
| n = 806 | n = 950 | n = 622 | |
| UIC, µg/L | 43 * (23–77) | 46 * (22–87) | 53 * (25–98) |
| DII, µg/d | 90 ** (50–146) | 96 ** (48–167) | 106 ** (55–185) |
| Male Participants | BMI < 25 Kg/m2 | BMI 25–29.99 Kg/m2 | BMI ≥ 30 Kg/m2 |
| n = 329 | n = 575 | n = 325 | |
| UIC, µg/L | 49 * (25–89) | 50 * (26–100) | 68 * (30–110) |
| DII, µg/d | 100 ** (55–172) | 107 ** (60–188) | 125 ** (65–211) |
| Female Participants | BMI < 25 Kg/m2 | BMI 25–29.99 Kg/m2 | BMI ≥ 30 Kg/m2 |
| n = 477 | n = 375 | n = 297 | |
| UIC, µg/L | 40 * (21–67) | 39 * (18–71) | 44 * (22–82) |
| DII, µg/d | 84 ** (45–133) | 87 ** (39–141) | 83 ** (49–154) |
* Median value below the WHO standard for adequate iodine status (100–200 µg/L). ** Median value below the EFSA and WHO/FAO daily adequate iodine intake (150 µg/day).