Obese patients   (21) Matched control (30) p - value
Variable Mean ± SD Mean ± SD
C16:0 31.3 ± 2.1 29.4 ± 6.3 -
C16:1 0.5 ± .20 1.9 ± 1.8 < .001
C18:0 14.5 ± 1.4 16.9 ± 5.3 0.03
C18:1 15.5 ± 0.8 21.3  ± 3.2 < .001
SFA 45.8 ± 1.4 46.3 ± 9.3 -
MUFA 16.0 ± 0.8 23.0 ± 4.5 < .01
C18:2 12.0 ± 1.1 10.4 ± 3.0 0.02
C20:3 2.0  ± .4 1.4 ± 1.0 0.008
C20:4 17.4 ± 1.6 12.9 ± 7.2 0.003
C20:5 0.5  ± .1 0.9 ± 1.1 -
C22:6 4.7 ± 0.8 1.7 ± 1.3 < .001
n3 PUFA 5.2 ± 0.9 2.6 ± 1.8 < .001
n6 PUFA 31.3 ± 1.7 25.0 ± 10.1 < .001
Total PUFA 36.5 ± 1.4 27.3 ± 10.9 < .001
TC 18:1 0.2 ± 0.1 0.3 ± 0.3 0.07
TC20:4 0.03 ± 0.03 1.0 ± 1.2 < .001
Total TFA 0.2 ± 0.1 1.3 ± 1.2 < .001
SFA/MUFA 2.9 ± 0.2 2.1 ± 0.6 < .001
C16:1/16:0 0.02 ± 0.01 0.1 ± 0.1 0.002
C18:1/18:0 1.1 ± 0.1 1.4 ± 0.4 < .001
Data are presented as mean ± S.D. Abbreviations: MUFA, monounsaturated fatty acids; SFA, saturated fatty acids; TFA, trans fatty acids
Table 2: Lipid composition of erythrocyte membranes derived from obese patients and healthy controls.