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Cognitive test scores in the supplemented and placebo groups |
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| Participants |
Digit span forward scores |
Verbal fluency scores |
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| Baseline Mean (SD) |
12 months Mean (SD) |
Supplemented vs. placebo Mean diff. (95% CI) |
Baseline Mean (SD) |
12 months Mean (SD) |
Supplemented vs. placebo Mean diff. (95% CI) |
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|
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| All participants |
Supplemented |
11.0 (2.2) (n 455) |
11.5 (2.3) (n 398) |
-0.1 (-0.3, 0.2) |
32.1 (12.0) (n 454) |
33.8 (12.8) (n 397) |
0.8 (-0.3, 2.0) |
| Placebo |
11.2 (2.2) (n 450) |
11.7 (2.1) (n 374) |
31.7 (12.8) (n 450) |
33.0 (13.3) (n 372) |
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| Participants aged 75 years or over |
Supplemented |
10.8 (2.2) (n 144) |
11.1 (2.3) (n 123) |
-0.1 (-0.8, 0.6)1 |
30.0 (12.7) (n 143) |
32.4 (13.0) (n 123) |
2.8 (-0.6, 6.2)1 |
| Placebo |
11.0 (2.1) (n 146) |
11.3 (2.2) (n 105) |
29.6 (12.5) (n 146) |
30.0 (13.4) (n 103) |
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| Participants at increased risk of deficiency |
Supplemented |
10.8 (2.1) (n 144) |
11.2 (2.4) (n 113) |
0.4 (-0.3, 1.1)1 |
29.2 (12.0) (n 144) |
31.3 (13.1) (n 113) |
2.5 (-1.0, 6.1)1 |
| Placebo |
10.8 (2.2) (n 116) |
10.9 (2.0) (n 91) |
30.6 (13.9) (n 116) |
29.2 (13.2) (n 91) |
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1 Reflecting the fact that the analysis was carried out on a sub-group, a 99% confidence interval was used to give the correct width for the 95% confidence interval. | |||||||
McNeill et al. Nutrition Journal 2007 6:10 doi:10.1186/1475-2891-6-10 |
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