Location | Shipai Eye Study | Beijing Eye Study | MESA | Handan Eye Study | SEED | Puzih Eye Study | Jiangning Eye Study | CHES | Yangxi Eye Study |
Taiwan | Beijing | America | Hebei | Singapore | Taiwan | Shanghai | America | Guangdong | |
Year examined | 1999–2000 | 2001 | 2002–2004 | 2006–2007 | 2009–2011 | 2010–2012 | 2012–2013 | 2010–2013 | 2014 |
Setting | Urban | Urban and rural | Urban | Rural | Urban | Urban | Urban | Urban | Rural |
Age range (years) | ≥65 | ≥40 | 45–85 | ≥30 | ≥40 | ≥65 | ≥50 | ≥50 | ≥50 |
Photography | 35°, NS, F | 45°, NS, F | 45°, NS, D | 45°, NS, D | 45°, NS, D | 45 and 30°, NS, D | 45°, NS, D | S, D | 45°, NS, D |
Grading system | W | W | W | W | W | W | W | W | Beckman |
Late AMD* | |||||||||
Total (%) | 1.90/3.02 | 0.20/0.30 | 1.00/0.73 | 0.10/0.15 | 0.80/1.01 | 7.30/6.78 | 1.10/1.01 | 0.30/0.43 | 0.86/0.79 |
Men (%) | 2.40/3.26 | NA | 1.40/0.97 | 0.10/0.20 | NA | 6.00/5.39 | 1.80/1.39 | 0.70/0.68 | 1.17/0.95 |
Women (%) | 1.00/2.20 | NA | 0.60/0.45 | 0.03/0.08 | NA | 8.80/8.53 | 0.60/0.59 | 0.20/0.20 | 0.56/0.51 |
*Crude/age-standardised prevalence (≥50 years).
Beckman, Clinical Classification of Age-Related Macular Degeneration by Beckman Initiative for Macular Research Classification Committee.
AMD, age-related macular degeneration; CHES, Chinese American Eye Study; D, digital; F, 35 mm film; MESA, Multi-Ethnic Study of Atherosclerosis; NA, not available; NS, non-stereo; S, stereo; SEED, Singapore Epidemiology of Eye Diseases Study; W, Wisconsin Age-Related Maculopathy Grading System or its modified system.