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Table 2 Fatty acids from the isolated plasma phospholipids described as means ± SD and median.*

From: Effects of an open-label pilot study with high-dose EPA/DHA concentrates on plasma phospholipids and behavior in children with attention deficit hyperactivity disorder

Plasma FA   Baseline Week 4 Week 8
  n-6    
18:2 (LA)   22.61 ± 1.39 17.81 ± 2.85 21.88 ± 4.89
   median   21.95 17.49 21.08
20:3 (DGLA)   3.12 ± 0.44 1.86 ± 0.82 2.15 ± 0.64
   median   3.09 2.25 2.05
20:4 (AA)   9.52 ± 0.70 8.92 ± 0.83 8.69 ± 1.30
   median   9.34 8.92 8.37
  n-3    
18:3 (LNA)   0.13 ± 0.07 0.13 ± 0.07 0.13 ± 0.06
   median   0.13 0.1 0.12
20:5 (EPA)   0.49 ± 0.12 5.89 ± 4.27a 4.64 ± 3.65a
   median   0.46 6.13 4.72
22:6 (DHA)   2.30 ± 0.88 5.68 ± 1.28a 5.61 ± 2.14a
   median   2.07 6.11 6.19
Totals and ratios     
Saturated   44.29 ± 0.99 43.94 ± 1.26 42.19 ± 1.05
   median   44.2 44.04 42.53
Monounsaturated   15.43 ± 1.38 13.64 ± 1.18 12.31 ± 2.12
   median   15.7 13.51 11.93
Polyunsaturated   40.27 ± 1.03 42.41 ± 1.43 45.51 ± 1.26
   median   40.21 42.02 45.38
total n-6   36.37 ± 0.99 29.07 ± 4.31a 33.42 ± 5.67
   median   36.57 29.54 31.59
total n-3   3.90 ± 0.87 13.35 ± 5.27a 12.09 ± 6.17a
   median   3.66 12.74 13.38
n-6: n-3 ratio   9.74 ± 2.14 2.79 ± 1.88a 3.93 ± 2.73a
   median   9.61 2.39 2.36
AA:EPA ratio   20.78 ± 5.26 4.19 ± 5.45a 5.95 ± 7.35a
   median   20.14 1.46 1.69
AA:EPA ratio (n = 7)#   20.73 ± 5.26 2.53 ± 3.49a 2.52 ± 2.91
   median   19.58 1.34 1.39
  1. * Values are mean ± SD and medians (n = 9). a p < 0.01 using Wilcoxon signed rank test to compare to baseline. LA, linoleic acid; DGLA, dihomogammalinolenic acid; AA, arachidonic acid; LNA, linolenic acid; EPA, eicosapentaenoic acid; DHA, docosahexaenoic acid.