Table 1.
Origin | Year | Author | N (eyes) | Age (years) | Prevalence (%) | Ratio F:M | ||
---|---|---|---|---|---|---|---|---|
Overall | Females | Males | ||||||
America | ||||||||
USA | 1933 | Goar et al. [180] | 800 | >21 | 6.62 | 9.07 | 3.62 | 2.5:1 |
1967 | Lorenzetti et al. [181] | 1348 | >40 | 3.9 | 4 | 3.8 | 1.05:1 | |
Europe | ||||||||
Iceland (Reykjavik) | 2006 | Zoega et al. [12] | 1548 | >55 | 9.2 | 11 | 7 | 1.6:1 |
Asia | ||||||||
Chinese Singaporean | 2002 | Kitagawa et al. [15] | 920 | >50 | 6.7 | 8.5 | 4.4 | 2:1 |
Japan | 1996 | Nagaki et al. [182] | 211 | 56–76 | 3.3 | 3.3 | – | – |
Japan (Ishikawa Prefecture) | 2002 | Kitagawa et al. [15] | 598 | >50 | 3.7 | 5.5 | 1.5 | 3.7:1 |
Japan (Southwestern Island) | 2011 | Higa et al. [14] | 7524 | >40 | 4.1 | 5.8 | 2.4 | 2.4:1 |