The Lundby Study Mats Bogren, Cecilia Mattisson and Per Nettelbladt



Table 40.1 Organic brain disorders of medium + (GAF 60-1) impairment. First incidence per 1000 years at risk (ì) with 95% confidence intervals (CI)


Source: Reproduced with permission from Australian & New Zealand Journal of Psychiatry, 2007; 41(2):178-186

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Male and female age-standardized first-incidence rates of dementia and other organic brain disorders every fifth year from 1947-97 are seen in Figure 40.1. In both males and females a trend of decreasing incidences of dementia can be observed from 1947-97, while five-year incidences of other organic brain disorders remained fairly constant through the whole period.


There are a limited number of studies that have tried to ascertain secular trends of dementia incidence. However, in a study from Rochester, Minnesota, no significant change of the incidence of dementia was seen from 1960 to 198417,18. One difference from the Lundby study was the shorter length of the observation period. A long period of study might be needed to be able to see a slow change over many years18.

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Jun 10, 2016 | Posted by in PSYCHIATRY | Comments Off on The Lundby Study Mats Bogren, Cecilia Mattisson and Per Nettelbladt
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