ArticleBMC ophthalmology2021
Prevalence and risk factors of refractive error in Qinghai, China: a cross-sectional study in Han and Tibetan adults in Xining and surrounding areas.
Article in BMC ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 12 citations in OpenAlex.
- Highland environment and genetic background are associated with myopia risk in Tibetans and Hans.Eye (London, England) · 2026Article
- Prevalence of pterygium and pinguecula and their risk factors: Tehran Geriatric Eye Study.International journal of ophthalmology · 2025Article
- Prevalence and risk factors for astigmatism in 7 to 19-year-old students in Xinjiang, China: a cross-sectional study.BMC ophthalmology · 2024Article
- High myopia is protective against diabetic retinopathy in the participants of the National Health and Nutrition Examination Survey.BMC ophthalmology · 2023Article
- High prevalence of refractive errors in an elderly population; a public health issue.BMC ophthalmology · 2023Article
- Scoliosis among children in Qinghai-Tibetan Plateau of China: A cross-sectional epidemiological study.Frontiers in public health · 2022Article
- Myopia progression and associated factors of refractive status in children and adolescents in Tibet and Chongqing during the COVID-19 pandemic.Frontiers in public health · 2022Article
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Authors and funding
17 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundOur study aimed to explore the prevalence and risk factors of refractive error (RE) in Han and Tibetan population aged 50-79 years in Xining and surrounding areas in Qinghai Province on Qinghai-Tibet Plateau.
methodsAs part of the China National Health Survey, our cross-sectional study compared the age-adjusted prevalence of RE in Han and Tibetan older adults aged 50-79 years in Xining and surrounding areas. A multivariate logistic regression model was used to identify risk factors for myopia and hyperopia.
resultsAmong 769 Han participants and 476 Tibetan participants, the age-adjusted prevalence of myopia (spherical equivalent (SE) < - 0.5D), hyperopia (SE > + 0.5D), high myopia (SE < -6.0D) and astigmatism (cylindrical equivalent > = 0.5D) is 28.56, 22.82, 2.80, and 69.38%. Han participants have higher age-adjusted prevalence of myopia (32.93% vs 21.64%, p < 0.001), high myopia (3.93% vs 1.02%, p = 0.001) and astigmatism (72.14% vs 64.94%, p = 0.021) compared to Tibetan participants. Being Tibetan is the protective factor of myopia compared to being Han (OR 0.58, 95%CI 0.42-0.79, p < 0.001). Older age (p = 0.032), longer time length in rural area (p = 0.048), undergraduate/graduate education level (p = 0.031), lighter active level (p = 0.007) and lower BMI (p = 0.015) are risk factors for myopia. Older age (all p < 0.001) and pterygium status of the same eye (p = 0.013) also increase the hyperopia risk.
conclusionsOur study found an overall prevalence of myopia of 28.56% in Xining and surrounding areas in adults older than 50 years. Han population has higher myopia risk than Tibetan population. More medical and social resources should be allocated to improve the vision and life quality of older adults.
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