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Prevalence of age-related maculopathy in the adult population in China: the Beijing eye study.
Am J Ophthalmol. 2006 Nov; 142(5):788-93.AJ

Abstract

OBJECTIVE

To evaluate the prevalence of age-related maculopathy (ARM) in adult Chinese living in rural or urban regions of mainland China.

DESIGN

Population-based prevalence study.

METHODS

The study included 4439 subjects (aged 40 or more years) out of 5324 subjects invited to participate (response rate 83.4%). It was held in rural and urban regions of Greater Beijing. The participants underwent a detailed ophthalmic examination including fundus photography. All fundus photographs were graded by the Wisconsin Age-Related Maculopathy Grading System.

RESULTS

Fundus photographs were available for 4376 (98.6%) subjects. Early ARM was present in 122 (1.4%) of 8655 (95% confidence interval [CI] 1.16% to 1.66%) eyes or 63 (1.4%) of 4376 (95% CI 1.09% to 1.79%) subjects, late ARM in 12 (0.14%) of 8655 (95% CI 0.06% to 0.22%) eyes or seven (0.2%) of 4376 (95% CI 0.04% to 0.28%) subjects, and exudative ARM as part of late ARM in seven (0.1%) of 8655 (95% CI 0.02% to 0.14%) eyes or six (0.1%) of 4376 (95% CI 0.03% to 0.25%) subjects. The prevalence of early ARM, late ARM, and exudative ARM, respectively, increased from 0.61%, 0.07%, and 0.07% in the 40-to-44-year age group, to 1.66%, 0.26%, and 0.26% in the 55-to-59-year group, and to 2.99%, 0.90%, and 0.60% in the group aged 75 years and older. ARM was causative for visual impairment (best-corrected visual acuity in the better eye, <20/60 and > or =20/400) or blindness (visual acuity <20/400) in one subject (0.023%).

CONCLUSIONS

Visual impairment due to ARM was relatively uncommon in the adult Chinese population in rural and urban regions.

Authors+Show Affiliations

Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Capital University of Medical Science, Beijing, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16989759

Citation

Li, Yibin, et al. "Prevalence of Age-related Maculopathy in the Adult Population in China: the Beijing Eye Study." American Journal of Ophthalmology, vol. 142, no. 5, 2006, pp. 788-93.
Li Y, Xu L, Jonas JB, et al. Prevalence of age-related maculopathy in the adult population in China: the Beijing eye study. Am J Ophthalmol. 2006;142(5):788-93.
Li, Y., Xu, L., Jonas, J. B., Yang, H., Ma, Y., & Li, J. (2006). Prevalence of age-related maculopathy in the adult population in China: the Beijing eye study. American Journal of Ophthalmology, 142(5), 788-93.
Li Y, et al. Prevalence of Age-related Maculopathy in the Adult Population in China: the Beijing Eye Study. Am J Ophthalmol. 2006;142(5):788-93. PubMed PMID: 16989759.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Prevalence of age-related maculopathy in the adult population in China: the Beijing eye study. AU - Li,Yibin, AU - Xu,Liang, AU - Jonas,Jost B, AU - Yang,Hua, AU - Ma,Yingnan, AU - Li,Jianjun, Y1 - 2006/09/20/ PY - 2006/01/23/received PY - 2006/05/29/revised PY - 2006/06/01/accepted PY - 2006/9/23/pubmed PY - 2006/12/9/medline PY - 2006/9/23/entrez SP - 788 EP - 93 JF - American journal of ophthalmology JO - Am J Ophthalmol VL - 142 IS - 5 N2 - OBJECTIVE: To evaluate the prevalence of age-related maculopathy (ARM) in adult Chinese living in rural or urban regions of mainland China. DESIGN: Population-based prevalence study. METHODS: The study included 4439 subjects (aged 40 or more years) out of 5324 subjects invited to participate (response rate 83.4%). It was held in rural and urban regions of Greater Beijing. The participants underwent a detailed ophthalmic examination including fundus photography. All fundus photographs were graded by the Wisconsin Age-Related Maculopathy Grading System. RESULTS: Fundus photographs were available for 4376 (98.6%) subjects. Early ARM was present in 122 (1.4%) of 8655 (95% confidence interval [CI] 1.16% to 1.66%) eyes or 63 (1.4%) of 4376 (95% CI 1.09% to 1.79%) subjects, late ARM in 12 (0.14%) of 8655 (95% CI 0.06% to 0.22%) eyes or seven (0.2%) of 4376 (95% CI 0.04% to 0.28%) subjects, and exudative ARM as part of late ARM in seven (0.1%) of 8655 (95% CI 0.02% to 0.14%) eyes or six (0.1%) of 4376 (95% CI 0.03% to 0.25%) subjects. The prevalence of early ARM, late ARM, and exudative ARM, respectively, increased from 0.61%, 0.07%, and 0.07% in the 40-to-44-year age group, to 1.66%, 0.26%, and 0.26% in the 55-to-59-year group, and to 2.99%, 0.90%, and 0.60% in the group aged 75 years and older. ARM was causative for visual impairment (best-corrected visual acuity in the better eye, <20/60 and > or =20/400) or blindness (visual acuity <20/400) in one subject (0.023%). CONCLUSIONS: Visual impairment due to ARM was relatively uncommon in the adult Chinese population in rural and urban regions. SN - 0002-9394 UR - https://www.unboundmedicine.com/medline/citation/16989759/Prevalence_of_age_related_maculopathy_in_the_adult_population_in_China:_the_Beijing_eye_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0002-9394(06)00699-4 DB - PRIME DP - Unbound Medicine ER -