| Betydelse | Indexvärden |
|---|---|
| Svår undervikt | < 16,0 |
| Måttlig undervikt | 16,0 - < 17 |
| Svag undervikt | 17,0 - < 18,5 |
| Normalvikt | 18,5 - < 25 |
| Övervikt | 25,0 - < 30 |
| Fetma grad 1 | 30,0 - < 35 |
| Fetma grad 2 | 35,0 - < 40 |
| Fetma grad 3 | >= 40,0 |
Källan: World Health Organization (WHO)