Urinary iodine concentration, thyroid volume, prevalence of goiter and nodules in schoolchildren stratified by BMI categories (AW OW, OB)
| . | BMI categories . | . | ||
|---|---|---|---|---|
| . | AW . | OW . | OB . | P value . |
| UIC (µg/L), number | 2122 | 432 | 180 | .02, OW vs AWa |
| Median (Q1, Q3) | 126 (77, 192) | 112 (67, 185) | 117 (71, 165) | .23, OB vs AW |
| Percentage of low UIC (<50 µg/L) | 11.5% | 11.8% | 10.6% | .95, OW vs AWb .84, OB vs AW |
| Thyroid volume (mL), number | 2488 | 528 | 231 | <.001, OW vs AWc |
| Mean ± SD | 5.21 ± 2.04 | 5.67 ± 2.05 | 6.43 ± 2.73 | <.001, OB vs AW |
| Prevalence of goiter | 2.5% | 2.1% | 0.9% | .63, OW vs AWb .13, OB vs AW |
| Prevalence of children with nodules | 2.2% | 1.7% | 0.9% | .48, OW vs AWb .22, OB vs AW |
| . | BMI categories . | . | ||
|---|---|---|---|---|
| . | AW . | OW . | OB . | P value . |
| UIC (µg/L), number | 2122 | 432 | 180 | .02, OW vs AWa |
| Median (Q1, Q3) | 126 (77, 192) | 112 (67, 185) | 117 (71, 165) | .23, OB vs AW |
| Percentage of low UIC (<50 µg/L) | 11.5% | 11.8% | 10.6% | .95, OW vs AWb .84, OB vs AW |
| Thyroid volume (mL), number | 2488 | 528 | 231 | <.001, OW vs AWc |
| Mean ± SD | 5.21 ± 2.04 | 5.67 ± 2.05 | 6.43 ± 2.73 | <.001, OB vs AW |
| Prevalence of goiter | 2.5% | 2.1% | 0.9% | .63, OW vs AWb .13, OB vs AW |
| Prevalence of children with nodules | 2.2% | 1.7% | 0.9% | .48, OW vs AWb .22, OB vs AW |
Abbreviations: AW, adequate weight; OB, obese; OW, overweight; Q1, first quartile; Q3, third quartile; UIC, urinary iodine concentration.
aQuantile regression considering age, sex, and area of residence (rural/urban) as covariates.
bLogistic regression considering age, sex, and area of residence as covariates.
cLinear regression on log-transformed data considering age, sex, and area of residence as covariates.
Urinary iodine concentration, thyroid volume, prevalence of goiter and nodules in schoolchildren stratified by BMI categories (AW OW, OB)
| . | BMI categories . | . | ||
|---|---|---|---|---|
| . | AW . | OW . | OB . | P value . |
| UIC (µg/L), number | 2122 | 432 | 180 | .02, OW vs AWa |
| Median (Q1, Q3) | 126 (77, 192) | 112 (67, 185) | 117 (71, 165) | .23, OB vs AW |
| Percentage of low UIC (<50 µg/L) | 11.5% | 11.8% | 10.6% | .95, OW vs AWb .84, OB vs AW |
| Thyroid volume (mL), number | 2488 | 528 | 231 | <.001, OW vs AWc |
| Mean ± SD | 5.21 ± 2.04 | 5.67 ± 2.05 | 6.43 ± 2.73 | <.001, OB vs AW |
| Prevalence of goiter | 2.5% | 2.1% | 0.9% | .63, OW vs AWb .13, OB vs AW |
| Prevalence of children with nodules | 2.2% | 1.7% | 0.9% | .48, OW vs AWb .22, OB vs AW |
| . | BMI categories . | . | ||
|---|---|---|---|---|
| . | AW . | OW . | OB . | P value . |
| UIC (µg/L), number | 2122 | 432 | 180 | .02, OW vs AWa |
| Median (Q1, Q3) | 126 (77, 192) | 112 (67, 185) | 117 (71, 165) | .23, OB vs AW |
| Percentage of low UIC (<50 µg/L) | 11.5% | 11.8% | 10.6% | .95, OW vs AWb .84, OB vs AW |
| Thyroid volume (mL), number | 2488 | 528 | 231 | <.001, OW vs AWc |
| Mean ± SD | 5.21 ± 2.04 | 5.67 ± 2.05 | 6.43 ± 2.73 | <.001, OB vs AW |
| Prevalence of goiter | 2.5% | 2.1% | 0.9% | .63, OW vs AWb .13, OB vs AW |
| Prevalence of children with nodules | 2.2% | 1.7% | 0.9% | .48, OW vs AWb .22, OB vs AW |
Abbreviations: AW, adequate weight; OB, obese; OW, overweight; Q1, first quartile; Q3, third quartile; UIC, urinary iodine concentration.
aQuantile regression considering age, sex, and area of residence (rural/urban) as covariates.
bLogistic regression considering age, sex, and area of residence as covariates.
cLinear regression on log-transformed data considering age, sex, and area of residence as covariates.
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