| No. | Name of Lifestyle | Third Class | Second Class | First Class | Type | No. of Studies |
|---|---|---|---|---|---|---|
| 1 | Frequency of salt shaker | Iodine | Mineral | Food composition | No statistical significance factor | 1 |
| 2 | Iodine/creatinine | Iodine | Mineral | Food composition | No statistical significance factor | 1 |