| 24hUE | 24-h urinary excretion |
| BMI | body mass index |
| CV | coefficient of variation |
| CVD | cardiovascular disease |
| IOFT | International Obesity Taskforce |
| K | potassium |
| Na | sodium |
| SD | standard deviation |
| SEM | standard error of the mean |
| SONIC | Salt and Other Nutrient Intakes in Children |