| Studies | Prevalence |
| NHANES III (USA) [8] | 11 |
| KEEP (USA) [9] | 27.2 |
| NEOERICA (UK) [8] | 11 |
| AusDiab (Australie) [8] | 10 |
| Pekin (Chine) [10] | 13 |
| SEEK (India) [11] | 17.2 |
| Norway [12] | 10.2 |
| Saint Louis (Senegal) [4] | 4.9 |
| Ghana [13] | 13.2 |
| Kinshasa [11] | 12.4 |
| Gueoul (Senegal) [14] | 36.5 |
| Our study | 5.2 |