Incidence of Visual Impairment Over a 20-Year Period
نویسندگان
چکیده
منابع مشابه
Incidence of visual impairment over a 20-year period: the Beaver Dam Eye Study.
PURPOSE To describe visual impairment (VI) over a 20-year period and its associations with age-related eye diseases and socioeconomic factors in the Beaver Dam Eye Study. DESIGN Population-based cohort study. PARTICIPANTS Four thousand nine hundred twenty-six persons 43 to 86 years of age participated in the baseline examination phase from 1988 through 1990, and 3721, 2962, 2375, and 1913 p...
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The incidence of Down's syndrome in the Liverpool and Bootle areas from 1961 to 1979 was investigated. A total of 319 liveborn cases was ascertained over this period. Using 3-year moving averages, the incidence of the condition fell gradually from 1.62 per 1000 livebirths for 1961 to 1963 to 1.09 per 1000 livebirths for 1977 to 1979. This trend is significant at the 0.1% level. Over the same pe...
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ژورنال
عنوان ژورنال: Ophthalmology
سال: 2013
ISSN: 0161-6420
DOI: 10.1016/j.ophtha.2012.11.041