Design and baseline characteristics of a population-based study of eye disease in southern Chinese people: the Dongguan Eye Study.
Meng Qianli, Cui Ying, Zhang Min, Zhang Lixin, Zhang Liang, Zhang Jinxin, Kuang Jian, Liu Qingyang, Zheng Yang, Luo Zhongling
AI Summary
The Dongguan Eye Study characterized eye disease prevalence and risk factors in 8952 rural southern Chinese adults. This provides vital epidemiological data for understanding eye health in urbanizing populations.
Abstract
Background
To describe the study design, methodology and baseline characteristics of the Dongguan Eye Study.
Design
Population-based, cross-sectional study
Participants
A total of 8952 rural-dwelling residents aged 40 years or older in Hengli, Dongguan.
Methods
The Dongguan Eye Study was conducted from September 2011 to February 2012. The interview covered demographic data, socio-economic status and health- and vision-related quality of life. Physical measurements included height, weight, waist and hip circumference, heart rate and blood pressure. Laboratory tests included fasting blood glucose, haemoglobin A1c, oral glucose tolerance, serum total cholesterol, triglycerides, high-density lipoprotein-cholesterol, low-density lipoprotein-cholesterol, serum creatinine, blood urea nitrogen and uric acid. Ophthalmic examinations included visual acuity and autorefraction testing, intraocular pressure measurement, slit-lamp examination, ocular biometry, gonioscopy, fundus photography, retinal nerve fibre layer imaging and visual field testing.
Main outcome measures
Prevalence and risk factors for visual impairment, blindness, eye diseases and their associations with systemic medical indicators or health-related lifestyles, as well as epidemiological data on diabetic subjects. Methodology, response rates and baseline characteristics are presented.
Results
Of the 11 357 individuals eligible for the Dongguan Eye Study, 8952 (78.82%) subjects participated. All participants were self-identified Han Chinese. The average age was 54.0 years, 59.9% were female, 48.4% were farmers and 77.2% had elementary or junior middle school educational levels. The average body mass index and waist-hip ratio were 24.6 ± 3.9 kg/m(2) and 0.9 ± 0.2.
Conclusions
Data from the Dongguan Eye Study provide information concerning the prevalence, risk factors and impacts of eye diseases in rural residents undergoing urbanization in southern China.
MeSH Terms
Shields Classification
Key Concepts4
All 8952 participants in the Dongguan Eye Study were self-identified Han Chinese, with an average age of 54.0 years, 59.9% female, 48.4% farmers, and 77.2% with elementary or junior middle school educational levels.
The average body mass index for participants in the Dongguan Eye Study was 24.6 ± 3.9 kg/m^2 and the average waist-hip ratio was 0.9 ± 0.2.
The Dongguan Eye Study, a population-based, cross-sectional study, was conducted from September 2011 to February 2012.
The Dongguan Eye Study included 8952 rural-dwelling residents aged 40 years or older in Hengli, Dongguan, out of 11,357 eligible individuals, resulting in a participation rate of 78.82%.
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