Acta ophthalmologica · 2013
Prevalence of pterygium in a population in Northern Japan: the Locomotive Syndrome and Health Outcome in Aizu Cohort Study.
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Tano Takatoshi, Ono Koichi, Hiratsuka Yoshimune, Otani Koji, Sekiguchi Miho, Konno Shinichi, Kikuchi Shinichi, Onishi Yoshihiro, Takegami Misa, Yamada Masakazu, Fukuhara Shunichi, Murakami Akira
Аннотация
PURPOSE: The aim of the study was to determine the prevalence and risk factors for pterygium in a population aged 40-74 years in Fukushima Prefecture, Japan.
METHODS: Of 4185 citizens of the towns of Minamiaizu-machi and Tadami-machi, 2312 (55.2%) gave consent to an ocular examination during a health examination. Pterygium was diagnosed when a radially oriented fibrovascular lesion growing over the limbus into the cornea was observed. Eyes with a history of pterygium excision were also diagnosed with pterygium. Prevalence and factors associated with pterygium were investigated.
RESULTS: Of the 2312 subjects, 101 (4.4%; 95% confidence interval, 3.6-5.3%) had pterygium in at least 1 eye. The average age (±SD) of the subjects was 64.3 ± 8.0 years. Gender, age, outdoor job history and smoking history were examined as possible associated factors, but only age was found to be significantly associated with pterygium in logistic regression analysis.
CONCLUSION: The prevalence of pterygium was 4.4% in the study population. This low rate may be due to the northern latitude of these towns. Age was associated with a risk of pterygium, but gender and outdoor job history were not associated with onset of pterygium in this study.
METHODS: Of 4185 citizens of the towns of Minamiaizu-machi and Tadami-machi, 2312 (55.2%) gave consent to an ocular examination during a health examination. Pterygium was diagnosed when a radially oriented fibrovascular lesion growing over the limbus into the cornea was observed. Eyes with a history of pterygium excision were also diagnosed with pterygium. Prevalence and factors associated with pterygium were investigated.
RESULTS: Of the 2312 subjects, 101 (4.4%; 95% confidence interval, 3.6-5.3%) had pterygium in at least 1 eye. The average age (±SD) of the subjects was 64.3 ± 8.0 years. Gender, age, outdoor job history and smoking history were examined as possible associated factors, but only age was found to be significantly associated with pterygium in logistic regression analysis.
CONCLUSION: The prevalence of pterygium was 4.4% in the study population. This low rate may be due to the northern latitude of these towns. Age was associated with a risk of pterygium, but gender and outdoor job history were not associated with onset of pterygium in this study.