Skip to main content

Table 1 The fatty acid profiles (% composition) of whole blood lipids in subjects from an Italian population not consuming omega-3 supplements and arranged according to age

From: A rapid method for determining arachidonic:eicosapentaenoic acid ratios in whole blood lipids: correlation with erythrocyte membrane ratios and validation in a large Italian population of various ages and pathologies

% Under 20
years (15-20)
21-40
years
41-60
years
Over 60
years (61-81)
  
n 19 103 127 51   
  Mean S.E. Mean S.E. Mean S.E. Mean S.E.   
C16:0 * 21.634 0.535 22.226 0.295 22.779 0.194 23.441 0.343   
C16:1** 1.252 0.228 1.392 0.066 1.438 0.064 1.945 0.140   
C18:0 12.321 0.547 11.197 0.259 11.364 0.170 10.836 0.251   
C18:1** 22.154 0.823 23.959 0.385 23.537 0.330 25.728 0.600   
C18:2n-6**
(LA)
23.089 0.735 22.155 0.347 21.795 0.371 19.527 0.463   
C18:3n-3 (ALA) 0.431 0.036 0.451 0.028 0.450 0.023 0.477 0.030   
C20:3n-6 2.098 0.117 1.932 0.056 1.860 0.060 2.174 0.289   
C20:4n-6*
(AA)
12.145 0.454 11.412 0.200 11.064 0.171 10.690 0.280   
C20:5 n-3 (EPA) 0.670 0.093 1.022 0.111 1.132 0.077 1.040 0.090   
C22:5n-3 (DPA) 1.381 0.106 1.264 0.048 1.266 0.044 1.203 0.060   
C22:6n-3 (DHA) 2.825 0.293 2.989 0.100 3.315 0.115 2.940 0.150   
tot ω-6** 37.332 0.845 35.499 0.403 34.719 0.381 32.391 0.624   
tot ω-3 5.307 0.394 5.727 0.197 6.163 0.198 5.659 0.240   
  1. a) Overall significance by ANOVA: * p < 0.05; ** p < 0.01.