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Table 1 Characteristics of included records

From: Outcomes measures in a decade of dementia and mild cognitive impairment trials

  n (%)
Source
 Peer-reviewed publications 630 (78)
 Unpublished 128 (16)
 Conference abstracts 47 (6)
Intervention  
 Pharmacological 487 (60)
 Non-pharmacological 311 (39)
 Both 7 (1)
Registration/publication
 2004 40 (5)
 2005 54 (7)
 2006 68 (8)
 2007 79 (10)
 2008 99 (12)
 2009 125 (16)
 2010 68 (8)
 2011 96 (12)
 2012 59 (7)
 2013 80 (10)
 2014 33 (4)
 2015a 4 (0.5)
Region
 Asia 133 (17)
 Australasia 27 (3)
 Europe 249 (31)
 Internationalb 46 (6)
 Middle East 11 (1)
 North America 231 (29)
 Russia 13 (2)
 South America 16 (2)
 Unclear 79 (10)
Dementia subtype
 Alzheimer’s disease 398 (49)
 Dementia (unspecified) 158 (20)
 Dementia and mild cognitive impairment 30 (4)
 Frontotemporal dementia 11 (1)
 Mild cognitive impairment 123 (15)
 Mixedc 39 (5)
 Parkinson’s disease dementia/dementia with Lewy bodies 22 (3)
 Vascular dementia 24 (3)
Journal of publication (n = 630)
 Old age psychiatry & dementia 195 (31)
 Geriatric medicine & gerontology 110 (17)
 Neurology & neuroscience 95 (15)
 General medicine 47 (7)
 Pharmacology 44 (7)
 Complementary & alternative medicine 27 (4)
 Psychiatry 22 (3)
 Rehabilitation 20 (3)
 Nursing 18 (3)
 Nutrition 9 (1)
 Psychology 8 (1)
 Other 35 (6)
  1. All percentages are rounded to nearest whole number
  2. aDenotes study published in 2015 but registered in period of interest
  3. bInternational defined as study sites in more than two regions
  4. cStudy included those with more than one specific dementia subtype