| Country | Risk for DR (%) | Age Groups Studied |
| Australia | 22.2 | ≥40 years |
| USA | 33.2 | 45 - 85 years |
| Finland | 21.0 | ≥70 year |
| Oman | 14.4 | All age groups |
| India | 34.0 | All age groups |
| Pakistan | 33.3 | All age groups |
| Sri Lanka | 31.3 | All age groups |