All participants of the Rotterdam Study were residents of Rotterdam, The Netherlands. All participants of the Gothenburg H70 Study were residents of Gothenburg, Sweden. No other information on ethnicity or race has been reported.
Diagnosis & Evaluation Methods
For a detailed description of diagnosis and evaluation methods in the Rotterdam Study, see Ott A et al 1998..
For a detailed description of diagnosis and evaluation methods in the H-70 Study, see Skoog et al (1993).
Ott A, Breteler MM, van Harskamp F, Stijnen T, Hofman A. Incidence and risk of dementia. The Rotterdam Study. Am J Epidemiol. 1998 Mar 15;147(6):574-80.
Reitz C, den Heijer T, van Duijn C, Hofman A, Breteler MM. Relation between smoking and risk of dementia and Alzheimer disease: the Rotterdam Study. Neurology. 2007 Sep 4;69(10):998-1005
Ruitenberg A, Skoog I, Ott A, et al. Blood pressure and risk of dementia: results from the Rotterdam study and the Gothenburg H-70 Study. Dement Geriatr Cogn Disord. Jan-Feb 2001;12(1):33-39.
Skoog I, Nilsson L, Palmertz B, Andreasson LA, Svanborg A. A population-based study of dementia in 85-year-olds. N Engl J Med. Jan 21 1993;328(3):153-158.