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Table 1 Search strategy.

From: Pain in elderly people with severe dementia: A systematic review of behavioural pain assessment tools

Keywords used: (Pain) AND (Scale OR assessment OR measure) AND (Elderly OR residents ORgeriatric OR nursing homes OR cognitive impairment OR dementia OR Alzheimer)
Source Hits (N =) Selection based on reading abstracts (N =) Final selection based on publications (N =)
Databases Psychinfo 191 29 31
  Medline 977 70*  
  CINAHL*** 219 17**  
Abstracts 8 5 5
Citation/reference screening 37 17 15
Unpublished manuscripts 6 3 3
Total   141 54
  1. * N = 19/70 overlapping with the Psychinfo search
  2. ** N = 15/17 overlapping with the Psychinfo and Medline searches
  3. *** Because of the large number of publications found using CINAHL, our search of this database was limited by using the keyword 'nursing'