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Prevalence of glaucoma in a rural northern china adult population: a population-based survey in kailu county, inner mongolia.
Ophthalmology 2011; 118(10):1982-8O

Abstract

PURPOSE

To assess the prevalence and types of glaucoma in a rural population in northern China.

DESIGN

Population-based cross-sectional study.

PARTICIPANTS

Subjects randomly selected from the population 40 years of age and older in Kailu County, Tongliao, Inner Mongolia.

METHODS

Each subject underwent a screening examination consisting of an interview and ophthalmic examinations, including applanation tonometry, central corneal thickness, gonioscopy, slit-lamp examination, dilated fundus evaluation, and a screening visual field test using frequency-doubling technology.

MAIN OUTCOME MEASURES

Glaucoma was diagnosed using International Society of Geographical and Epidemiological Ophthalmology criteria.

RESULTS

Of 5949 individuals 40 years of age and older, 5197 (87.36%) were examined. Of these, 169 (3.28%) had diagnosed glaucoma, giving an age- and gender-standardized prevalence of 2.90% (95% confidence interval, 2.02%-3.78%). The age- and gender-standardized prevalence of primary angle-closure glaucoma (PACG) was 1.42% (95% confidence interval, 0.82%-2.02%) and that for primary open-angle glaucoma (POAG) was 1.41% (95% confidence interval, 0.79%-2.02%). Of the 169 subjects with glaucoma, 54 (60%) and 3 (4.1%) had a previous known history of PACG or POAG, respectively. Unilateral blindness resulting from primary glaucoma was observed in 27 subjects (16.56%; 19 PACG/8 POAG), and bilateral blindness was present in 12 subjects (7.36%; 6 PACG/6 POAG). The prevalence of all types of glaucoma was increased with older age.

CONCLUSIONS

The adjusted prevalence of glaucoma in this Chinese population was 2.90%, comparable with other data from Asia. The ratio of PACG to POAG was approximately equal. More than 90% of POAG cases previously were undetected, and nearly 30% of subjects with glaucoma were blind in at least 1 eye.

FINANCIAL DISCLOSURE(S)

The author(s) have no proprietary or commercial interest in any materials discussed in this article.

Authors+Show Affiliations

Department of Ophthalmology, The 2nd Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China.

Pub Type(s)

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

Language

eng

PubMed ID

21684607

Citation

Song, Wulian, et al. "Prevalence of Glaucoma in a Rural Northern China Adult Population: a Population-based Survey in Kailu County, Inner Mongolia." Ophthalmology, vol. 118, no. 10, 2011, pp. 1982-8.
Song W, Shan L, Cheng F, et al. Prevalence of glaucoma in a rural northern china adult population: a population-based survey in kailu county, inner mongolia. Ophthalmology. 2011;118(10):1982-8.
Song, W., Shan, L., Cheng, F., Fan, P., Zhang, L., Qu, W., ... Yuan, H. (2011). Prevalence of glaucoma in a rural northern china adult population: a population-based survey in kailu county, inner mongolia. Ophthalmology, 118(10), pp. 1982-8. doi:10.1016/j.ophtha.2011.02.050.
Song W, et al. Prevalence of Glaucoma in a Rural Northern China Adult Population: a Population-based Survey in Kailu County, Inner Mongolia. Ophthalmology. 2011;118(10):1982-8. PubMed PMID: 21684607.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Prevalence of glaucoma in a rural northern china adult population: a population-based survey in kailu county, inner mongolia. AU - Song,Wulian, AU - Shan,Li, AU - Cheng,Fang, AU - Fan,Pan, AU - Zhang,Lijuan, AU - Qu,Wei, AU - Zhang,Qiuju, AU - Yuan,Huiping, PY - 2010/09/19/received PY - 2011/01/22/revised PY - 2011/02/25/accepted PY - 2011/6/21/entrez PY - 2011/6/21/pubmed PY - 2011/12/13/medline SP - 1982 EP - 8 JF - Ophthalmology JO - Ophthalmology VL - 118 IS - 10 N2 - PURPOSE: To assess the prevalence and types of glaucoma in a rural population in northern China. DESIGN: Population-based cross-sectional study. PARTICIPANTS: Subjects randomly selected from the population 40 years of age and older in Kailu County, Tongliao, Inner Mongolia. METHODS: Each subject underwent a screening examination consisting of an interview and ophthalmic examinations, including applanation tonometry, central corneal thickness, gonioscopy, slit-lamp examination, dilated fundus evaluation, and a screening visual field test using frequency-doubling technology. MAIN OUTCOME MEASURES: Glaucoma was diagnosed using International Society of Geographical and Epidemiological Ophthalmology criteria. RESULTS: Of 5949 individuals 40 years of age and older, 5197 (87.36%) were examined. Of these, 169 (3.28%) had diagnosed glaucoma, giving an age- and gender-standardized prevalence of 2.90% (95% confidence interval, 2.02%-3.78%). The age- and gender-standardized prevalence of primary angle-closure glaucoma (PACG) was 1.42% (95% confidence interval, 0.82%-2.02%) and that for primary open-angle glaucoma (POAG) was 1.41% (95% confidence interval, 0.79%-2.02%). Of the 169 subjects with glaucoma, 54 (60%) and 3 (4.1%) had a previous known history of PACG or POAG, respectively. Unilateral blindness resulting from primary glaucoma was observed in 27 subjects (16.56%; 19 PACG/8 POAG), and bilateral blindness was present in 12 subjects (7.36%; 6 PACG/6 POAG). The prevalence of all types of glaucoma was increased with older age. CONCLUSIONS: The adjusted prevalence of glaucoma in this Chinese population was 2.90%, comparable with other data from Asia. The ratio of PACG to POAG was approximately equal. More than 90% of POAG cases previously were undetected, and nearly 30% of subjects with glaucoma were blind in at least 1 eye. FINANCIAL DISCLOSURE(S): The author(s) have no proprietary or commercial interest in any materials discussed in this article. SN - 1549-4713 UR - https://www.unboundmedicine.com/medline/citation/21684607/Prevalence_of_glaucoma_in_a_rural_northern_china_adult_population:_a_population_based_survey_in_kailu_county_inner_mongolia_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0161-6420(11)00237-5 DB - PRIME DP - Unbound Medicine ER -