TY - JOUR
T1 - Prevalence of age-related macular degeneration in Chinese American Adults
T2 - The Chinese American eye study
AU - for the Chinese American Eye Study Group
AU - Varma, Rohit
AU - Choudhury, Farzana
AU - Chen, Sardius
AU - Wu, Shuang
AU - Hsu, Chunyi
AU - Torres, Mina
AU - Klein, Ronald
AU - Azen, Stanley P.
AU - McKean-Cowdin, Roberta
AU - Dinh, David
AU - Jiang, Ruzhang
AU - Sun, Jie
AU - Wang, Dandan
AU - Wang, Yu Ping
AU - Wong, Justine
AU - Desai, Rucha
AU - John, Lisa V.
AU - Cheng, Michelle
AU - Meuer, Stacy M.
AU - Sommer, Alfred
AU - Coleman, Anne
AU - Han, Dennis
AU - Hanis, Craig
AU - Wideroff, Louise
AU - Young, Terri
N1 - Funding Information:
This work was supported by grant EY-017337 from the National Eye Institute, National Institutes of Health and an unrestricted departmental grant from Research to Prevent Blindness.
Publisher Copyright:
Copyright 2016 American Medical Association. All rights reserved.
PY - 2016/5
Y1 - 2016/5
N2 - IMPORTANCE Population-based prevalence estimates of age-related macular degeneration (AMD) need to be determined to assess its burden among Chinese Americans, the fastest growing racial group in the United States. OBJECTIVE To determine the age- and sex- specific prevalence of AMD among Chinese Americans. DESIGN The Chinese American Eye Study (CHES) was conducted in a general urban community of 10 census tracts in Monterey Park, California. A total of 4582 Chinese American adults aged 50 years or older participated in this population-based, cross-sectional study from February 16, 2010, through October 9, 2013, and underwent an interview as well as comprehensive clinical and eye examinations, including detailed retinal photography of both eyes. Fundus photographs were graded for drusen and retinal pigment epithelium abnormalities and were evaluated for AMD. MAIN OUTCOMES AND MEASURES The prevalence of early and advanced AMD, drusen, geographic atrophy, and neovascular AMD were determined by using a modified Wisconsin Age-Related Maculopathy Grading Scale (a 6-level scale: 10, no AMD; 60, advanced AMD). RESULTS Of the 4582 participants completing both the home survey and clinical examination, 4172 individuals (91.1%) had at least 1 gradable photograph. A total of 1526 (36.6%) participants were men, and the mean (SD) age was 61.2 (8.8) years. When examined by 10-year age groups, the prevalence of early AMD ranged from 5.8% (n = 119) in participants aged 50 to 59 years to 17.6%(n = 37) in those 80 years or older, retinal pigment epithelium abnormalities from 4.1% (n = 85) to 7.2%(n = 16), large drusen (125 ìm) from 9.8%to 32.4%, soft drusen from 27.6%(n = 567) to 58.6%(n = 123), and soft indistinct drusen from 3.7%(n = 76) to 15.2%(n = 32). The prevalence of advanced AMD ranged from 0.2%(n = 3) in participants aged 50 to 59 years to 1.0% (n = 2) in those 80 years or older. Of the 14 cases of advanced AMD, 85.7%(95%CI, 57.2%-98.2%; n = 12) were neovascular AMD and 14.3%(95%CI, 2.0%-42.8%; n = 2) were geographic atrophy. Acute macular degeneration was more common in men (10.9%[9.3%-12.5%]; n = 166) than women (5.8% [4.9%-6.7%]; n = 154) in this cohort. CONCLUSIONS AND RELEVANCE Data from CHES suggest that Chinese Americans have a lower prevalence of early and advanced AMD compared with non-Hispanic white individuals. The prevalence of early AMD, advanced AMD, and large drusen was higher among Chinese Americans in CHES than among the Chinese population living in urban/rural China but lower than that in urban-dwelling Taiwanese.
AB - IMPORTANCE Population-based prevalence estimates of age-related macular degeneration (AMD) need to be determined to assess its burden among Chinese Americans, the fastest growing racial group in the United States. OBJECTIVE To determine the age- and sex- specific prevalence of AMD among Chinese Americans. DESIGN The Chinese American Eye Study (CHES) was conducted in a general urban community of 10 census tracts in Monterey Park, California. A total of 4582 Chinese American adults aged 50 years or older participated in this population-based, cross-sectional study from February 16, 2010, through October 9, 2013, and underwent an interview as well as comprehensive clinical and eye examinations, including detailed retinal photography of both eyes. Fundus photographs were graded for drusen and retinal pigment epithelium abnormalities and were evaluated for AMD. MAIN OUTCOMES AND MEASURES The prevalence of early and advanced AMD, drusen, geographic atrophy, and neovascular AMD were determined by using a modified Wisconsin Age-Related Maculopathy Grading Scale (a 6-level scale: 10, no AMD; 60, advanced AMD). RESULTS Of the 4582 participants completing both the home survey and clinical examination, 4172 individuals (91.1%) had at least 1 gradable photograph. A total of 1526 (36.6%) participants were men, and the mean (SD) age was 61.2 (8.8) years. When examined by 10-year age groups, the prevalence of early AMD ranged from 5.8% (n = 119) in participants aged 50 to 59 years to 17.6%(n = 37) in those 80 years or older, retinal pigment epithelium abnormalities from 4.1% (n = 85) to 7.2%(n = 16), large drusen (125 ìm) from 9.8%to 32.4%, soft drusen from 27.6%(n = 567) to 58.6%(n = 123), and soft indistinct drusen from 3.7%(n = 76) to 15.2%(n = 32). The prevalence of advanced AMD ranged from 0.2%(n = 3) in participants aged 50 to 59 years to 1.0% (n = 2) in those 80 years or older. Of the 14 cases of advanced AMD, 85.7%(95%CI, 57.2%-98.2%; n = 12) were neovascular AMD and 14.3%(95%CI, 2.0%-42.8%; n = 2) were geographic atrophy. Acute macular degeneration was more common in men (10.9%[9.3%-12.5%]; n = 166) than women (5.8% [4.9%-6.7%]; n = 154) in this cohort. CONCLUSIONS AND RELEVANCE Data from CHES suggest that Chinese Americans have a lower prevalence of early and advanced AMD compared with non-Hispanic white individuals. The prevalence of early AMD, advanced AMD, and large drusen was higher among Chinese Americans in CHES than among the Chinese population living in urban/rural China but lower than that in urban-dwelling Taiwanese.
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U2 - 10.1001/jamaophthalmol.2016.0588
DO - 10.1001/jamaophthalmol.2016.0588
M3 - Article
C2 - 27055183
AN - SCOPUS:84968894972
SN - 2168-6165
VL - 134
SP - 571
EP - 577
JO - JAMA ophthalmology
JF - JAMA ophthalmology
IS - 5
ER -