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Notes: Although the paper suggests that 661 people were included in the study, only 660 are detailed as participants. When compared to DSM-III criteria for diagnosing depression in those aged ⩾65, ZSDS score cut off of 44/45 had 72% sensitivity and 83% specificity. There may be inaccuracies in classification of cause of death. Lipid levels, which could have a confounding affect upon mortality in depressed people, were not examined.
Source of funding: The Signe and Arne Gyllenberg Foundation, The Academy of Finland.
Competing interests: None.
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