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Table 2 Baseline characteristics of the participants1

From: Supplementation of arachidonic acid-enriched oil increases arachidonic acid contents in plasma phospholipids, but does not increase their metabolites and clinical parameters in Japanese healthy elderly individuals: a randomized controlled study

    Group  
Characteristics2   Placebo Low-ARA High-ARA
   (n = 20) (n = 22) (n = 22)
Gender (Female) n 12 13 12
Age y 63.1 ± 3.8 62.8 ± 4.3 62.9 ± 4.2
BMI kg/m2 21.5 ± 2.4 22.5 ± 2.0 22.5 ± 3.1
Alcohol consumption     
   Positive n 11 13 9
   Negative n 9 9 13
Smoking status     
   Positive n 4 3 3
   Negative n 16 19 19
Exercise     
   Habitual n 11 15 14
   Nonhabitual n 9 7 8
hs-CRP μg/dL 113 ± 98 106 ± 153 104 ± 116
PT % 91.4 ± 8.5 91.4 ± 8.6 91.5 ± 6.5
HbA1c % 4.9 ± 0.2 4.9 ± 0.3 4.9 ± 0.4
FA composition     
   18:2n-6 % 18.33 ± 2.64 18.91 ± 2.16 17.78 ± 2.62
   20:4n-6 % 8.27 ± 1.26 8.61 ± 0.92 8.77 ± 1.32
   20:5n-3 % 2.85 ± 1.30 3.17 ± 1.42 3.59 ± 2.16
   22:6n-3 % 7.83 ± 1.42 8.10 ± 1.27 8.41 ± 2.29
  1. 1Values are means ± SD. No significance among the groups (ANOVA and Tukey-Kramer or Kruskal-Wallis tests).
  2. 2hs-CRP, high-sensitivity CRP; PT, prothrombin time; HbA1c, hemoglobin A1c; FA, fatty acid; 18:2n-6, linoleic acid; 20:4n-6, arachidonic acid; 20:5n-3, eicosapentaenoic acid; 22:6n-3, docosahexaenoic acid.