Table 2.

Fatty acid composition of erythrocytes in subjects

Fatty acids (weight %)	Case (n = 24)	Control (n = 68)	p value*
Saturated fatty acids	39.45 ± 6.45	40.12 ± 4.90	0.600
Myristic (14:0)	0.77 ± 0.41	0.65 ± 0.43	0.227
Palmitic (16:0)	24.31 ± 3.44	23.63 ± 3.30	0.390
Stearic (18:0)	13.71 ± 3.64	15.34 ± 2.79	0.025
Lignoceric (24:0)	0.67 ± 0.47	0.43 ± 0.51	0.048
Monounsaturated fatty acids	17.09 ± 1.91	18.22 ± 1.81	0.011
trans-Palmitoleic (16:1n-7t)	0.60 ± 0.55	0.36 ± 0.42	0.031
Palmitoleic (16:1n-7)	1.11 ± 0.48	4.40 ± 2.87	< 0.001
trans-Oleic (18:1n-9t)	0.84 ± 0.41	0.58 ± 0.65	0.071
Oleic (18:1n-9)	14.65 ± 1.70	12.96 ± 2.43	0.002
Eicosenoic (20:1n-9)	0.79 ± 0.50	0.31 ± 0.37	< 0.001
Nervonic (24:1n-9)	0.54 ± 0.45	0.36 ± 0.88	0.062
Polyunsaturated fatty acids	41.35 ± 7.36	40.01 ± 5.45	0.351
Omega-6	29.81 ± 5.01	26.05 ± 4.14	< 0.001
trans-Linoleic (18:2n-6t)	0.22 ± 0.17	0.57 ± 0.51	< 0.001
Linoleic (18:2n-6)	14.38 ± 4.59	10.54 ± 3.42	< 0.001
Gamma-linolenic (18:3n-6)	0.34 ± 0.18	0.27 ± 0.56	0.590
Eicosadienoic (20:2n-6)	0.33 ± 0.18	0.41 ± 0.48	0.425
Dihomo-GLA (20:3n-6)	1.72 ± 0.46	1.43 ± 0.38	0.003
Arachidonic (20:4n-6)	11.25 ± 3.07	11.25 ± 2.76	0.998
Adrenic (22:4n-6)	1.29 ± 0.60	1.53 ± 0.61	0.101
Docosapentaenoic (22:5n-6)	0.51 ± 0.30	0.48 ± 0.61	0.753
Omega-3	11.54 ± 3.58	13.96 ± 3.86	0.008
Alpha-linolenic (18:3n-3)	0.77 ± 0.43	0.60 ± 0.66	0.148
Eicosapentaenoic (20:5n-3)	1.80 ± 0.65	2.53 ± 0.96	< 0.001
Docosapentaenoic (22:5n-3)	1.93 ± 0.73	2.64 ± 0.91	0.001
Docosahexaenoic (22:6n-3)	7.03 ± 2.54	8.61 ± 2.57	0.011
n-6/n-3	2.79 ± 0.83	2.07 ± 0.86	0.001
Omega-3 index	8.83 ± 3.00	11.13 ± 3.08	0.002
AA/EPA	6.88 ± 2.84	5.07 ± 2.20	0.002
Total trans fatty acids	1.51 ± 0.68	1.39 ± 0.86	0.527

*By two sample t-test; Omega-3 index, docosahexaenoic acid + eicosapentaenoic acid %; AA, arachidonic acid; EPA, eicosapentaenoic acid