Ethnic and environmental influences on cataract type are examined using patient data collected from an Australian region. Three ethnic groups are identified: native Australian Caucasians, southern and other Europeans. The Australians are further subdivided into 2 age groups. Apart from effects due to age, the following differences were found: the younger Australian group shows a greater relative risk for cortical cataracts; there is a gender-based difference among the southern European ethnic group; the Australian total has a lower relative risk for cortical cataracts than southern Europeans and a lower relative risk for cortical and mixed cataract than the European group. A comparison made with data published earlier for comparable groups in Britain shows that all Australian groups have a lower relative risk for nuclear but a higher one for cortical cataract and its combinations.

Keywords:
Cataract, Ethnicity, Australia, Relative risk ratio, Ultraviolet radiation
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© 1996 S. Karger AG, Basel
1996
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