Table 1

Characteristics and comparability of our trial

Multi-domain training

Single-domain training

Control group

F/X2

P


Age

Randomization

70.79 ± 3.33

69.78 ± 3.76

70.17 ± 3.47

1.88

0.15

(<a onClick="popup('http://www.biomedcentral.com/1741-7015/10/30/mathml/M1','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1741-7015/10/30/mathml/M1">View MathML</a> ± SD)

Baseline

70.76 ± 3.49

69.79 ± 3.93

70.27 ± 3.41

1.10

0.34

Immediate Posttest

71.61 ± 3.70

70.42 ± 3.87

71.10 ± 3.84

1.39

0.25

6-Month Posttest

72.46 ± 3.69

71.35 ± 3.96

72.09 ± 3.72

1.20

0.30

12-Month Posttest

72.78 ± 3.62

71.51 ± 4.11

72.39 ± 3.77

1.57

0.21

Educationa

Randomization

9.33 ± 3.80

9.77 ± 3.96

9.58 ± 3.93

0.28

0.76

(<a onClick="popup('http://www.biomedcentral.com/1741-7015/10/30/mathml/M1','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1741-7015/10/30/mathml/M1">View MathML</a> ± SD)

Baseline

10.15 ± 3.57

9.16 ± 4.00

9.08 ± 4.13

1.44

0.24

Immediate Posttest

9.65 ± 4.49

9.02 ± 4.07

8.94 ± 4.20

0.47

0.63

6-Month Posttest

9.80 ± 4.43

8.93 ± 4.54

8.52 ± 4.10

1.25

0.29

12-Month Posttest

9.96 ± 4.18

9.30 ± 4.23

8.50 ± 3.91

1.75

0.18

Sex composition

Randomization

52:38

41:49

45:45

2.76

0.25

(male: female)

Baseline

36:23

26:37

37:34

4.79

0.09

Immediate Posttest

33:21

26:33

31:29

3.29

0.19

6-Month Posttest

33:21

22:32

30:28

4.49

0.11

12-Month Posttest

33:21

23:32

30:26

4.14

0.13


Note: aEducation refers to self-reported years of education

Cheng et al. BMC Medicine 2012 10:30   doi:10.1186/1741-7015-10-30

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