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Table 2 Demographics of randomized trial participants

From: Recruitment across two decades of NIH-funded Alzheimer’s disease clinical trials

 

Donepezil/vitamin E (1999)

NSAIDs (1999)

Simvastatin (2002)

Vitamin B (2003)

Valproate (2003)

Huperzine A (2004)

DHA (2007)

IVIG (2008)

Resveratrol (2012)

INI (2014)

FYN (2014)

Race and ethnicity

 NH White, n (%)

727 (92.0)

318 (90.6)

349 (86.0)

339 (82.9)

279 (89.1)

182 (86.7)

358 (89.1)

371 (95.1)

107 (89.9)

264 (91.3)

142 (89.3)

 NH Black, n (%)

19 (2.4)

11(3.1)

27 (6.7)

36 (8.8)

16 (5.1)

14 (6.7)

23 (5.7)

6 (1.5)

7 (5.9)

8 (2.8)

7 (4.4)

 NH Asian or Pacific Islander, n (%)

7 (0.9)

0 (0.0)

3 (0.7)

11 (2.7)

5 (1.6)

2 (1.0)

2 (0.5)

1 (0.3)

2 (1.7)

5 (1.7)

0 (0.0)

 NH American Indian or Alaskan Native, n (%)

3 (0.4)

3 (0.9)

1 (0.2)

0 (0.0)

1 (0.3)

0 (0.0)

3 (0.7)

0 (0.0)

2 (1.7)

0 (0.0)

1 (0.6)

 Hispanic, n (%)

31 (3.9)

19 (5.4)

24 (5.9)

21 (5.1)

11 (3.5)

11 (5.2)

14 (3.5)

12 (3.1)

1 (0.8)

10 (3.5)

7 (4.4)

 Others, n (%)

3 (0.4)

0 (0.0)

2 (0.5)

2 (0.5)

1 (0.3)

1 (0.5)

2 (0.5)

0 (0.0)

0 (0.0)

2 (1.0)

2 (1.3)

Age, mean (SD)

72.9 (7.3)

73.9 (7.7)

74.6 (9.3)

76.9 (8.0)

76.2 (7.9)

78.4 (8.0)

76.0 (8.7)

70.3 (9.3)

71.3 (8.1)

70.9 (7.1)

71.1 (7.7)

Sex

 Female, n (%)

362 (45.8)

186 (53.0)

241 (59.4)

229 (56.0)

184 (58.8)

135 (64.3)

210 (52.2)

213 (54.6)

68 (57.1)

135 (46.7)

72 (45.3)

Study partner type

 Spouse, n (%)

575 (72.8)

258 (73.5)

274 (67.5)

255 (62.3)

214 (68.4)

130 (61.9)

272 (67.7)

NA

93 (78.2)

248 (85.8)

130 (81.8)

 Adult child, n (%)

113 (14.3)

71 (20.2)

102 (25.1)

121 (29.6)

74 (23.6)

67 (31.9)

104 (25.9)

NA

17 (14.3)

23 (8.0)

18 (11.3)

 Others, n (%)

102 (12.9)

22 (6.3)

30 (7.4)

33 (8.1)

25 (8.0)

13 (6.2)

26 (6.5)

NA

9 (7.6)

18 (6.2)

11 (6.9)

  1. The DHA trial does not indicate the age of participants above the age of 90. We report the mean (SD) age presented in the original manuscript [18]
  2. NA not available