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Prevalence of age-related macular degeneration in rural southern China: the Yangxi Eye Study
- Source :
- British Journal of Ophthalmology. 102:625-630
- Publication Year :
- 2017
- Publisher :
- BMJ, 2017.
-
Abstract
- PurposeTo describe the prevalence of age-related macular degeneration (AMD) among older adults in rural southern mainland China.MethodsEligible persons aged 50 years or over were identified by geographically defined cluster sampling from Yangxi County, Guangdong Province, China. Participants underwent a standardised interview and comprehensive eye examinations from August to November in 2014. Digital retinal photographs were graded for AMD lesions using the Clinical Classification of Age-Related Macular Degeneration developed by the Beckman Initiative for Macular Research Classification Committee. Age-standardised prevalence of AMD and AMD lesions was calculated using the 2010 world population data and compared with those of other populations.ResultsOf 5825 subjects who participated (90.7% response rate), 4881 (83.8%) had fundus photographs gradable for AMD. Early, intermediate and late AMD were present in 2003 (41.0%), 879 (18.0%) and 42 (0.86%) participants. The age-standardised prevalence of early, intermediate and late AMD was 40.4% (95% CI 39.6% to 41.2%), 17.6% (95% CI 17.0% to 18.2%) and 0.79% (95% CI 0.65% to 0.95%), respectively. Total AMD was more prevalent in men than in women (62.8% vs 57.1%).ConclusionsAMD is an important public health concern for rural southern China, and the prevalence of AMD was higher in men than in women.
- Subjects :
- Male
Rural Population
China
medicine.medical_specialty
genetic structures
Cross-sectional study
Fundus (eye)
Macular Degeneration
03 medical and health sciences
Cellular and Molecular Neuroscience
Age Distribution
0302 clinical medicine
Risk Factors
Age related
Prevalence
medicine
Humans
030212 general & internal medicine
Sex Distribution
Aged
Aged, 80 and over
Response rate (survey)
business.industry
Public health
Age Factors
Middle Aged
Japanese population
Macular degeneration
medicine.disease
eye diseases
Sensory Systems
Ophthalmology
Cross-Sectional Studies
Southern china
030221 ophthalmology & optometry
Optometry
Female
sense organs
business
Demography
Subjects
Details
- ISSN :
- 14682079 and 00071161
- Volume :
- 102
- Database :
- OpenAIRE
- Journal :
- British Journal of Ophthalmology
- Accession number :
- edsair.doi.dedup.....93e4c0123f57479df27a86834c6e464b