| Value |
Category |
| 1 |
Positive (iodized) |
| 2 |
Negative (non-iodiz) |
| 3 |
Both (iodized/non) |
| 6 |
Salt not available |
| 8 |
Inconclusive test |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.