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Table 1 Results in the WM-tests following five weeks daily dietary supplementation with 3 g omega-3 PUFA from fish oil or placebo, respectively 1

From: Effects of supplementation with n-3 polyunsaturated fatty acids on cognitive performance and cardiometabolic risk markers in healthy 51 to 72 years old subjects: a randomized controlled cross-over study

WM-tests 2(max 48 credits) Omega-3 Placebo
60 min 31.4±0.8a 30.0±1.0b
110 min 33.8±1.4a 33.3±1.4a
160 min 30.4±0.9a 29.6±1.0a
  1. 1Data are given as means per treatment ± SEM, n = 38, but only 37 subjects performed the WM-test at 110 min (19 subjects started with placebo and 18 subjects started with PUFA) due to one subjects did not perform the test in time. Labeled means in a row without a common letter differ, p < 0.05 (ANOVA).
  2. 2 At 60 min and 160 min the subjects were supposed to recall nouns and at 110 min the subjects were supposed to recall figures.