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Table 2 Estimates of fatty acid concentrations (μg/ml) in Caucasian and East Asian males and females

From: Ethnicity, sex, FADS genetic variation, and hormonal contraceptive use influence delta-5- and delta-6-desaturase indices and plasma docosahexaenoic acid concentration in young Canadian adults: a cross-sectional study

Fatty acid Caucasians East Asians
Males Females p-value Males Females p-value
  μg/ml SD μg/ml SD t-test MLR μg/ml SD μg/ml SD t-test MLR
18:2n6 594.5 151.9 641.6 141.0 <0.01* <0.01* 626.6 159.6 669.2 139.1 0.01* 0.03*
18:3n3 14.1 9.2 15.2 7.0 0.18 0.20 14.4 6.8 15.7 6.5 0.10 0.03*
20:4n6 118.7 35.6 127.3 37.3 0.04* 0.09 112.7 31.5 114.1 30.8 0.71 0.88
20:5n3 11.5 7.5 11.7 8.2 0.82 <0.01* 12.9 7.7 12.8 9.9 0.95 0.80
22:6n3 23.7 9.0 31.3 12.5 <0.01* <0.01* 32.3 11.2 35.2 12.1 0.03* 0.04*
[AA/LA] 0.204 0.005 0.201 0.003 0.60 0.24 0.197 0.012 0.176 0.004 0.09 0.19
[DHA/ALA] 2.0 1.1 2.3 1.1 0.02* 0.03* 2.5 1.2 2.5 1.1 0.85 0.47
[EPA/ALA] 0.923 0.062 0.851 0.038 0.32 0.30 1.003 0.070 0.906 0.048 0.29 0.14
[DHA/EPA] 2.5 1.1 3.3 1.5 <0.01* <0.01* 3.0 1.0 3.7 1.7 <0.01* <0.01*
  1. Select fatty acids used as substrate and product of D5D and D6D desaturase indices. The * denotes p-values which are significant (<0.05). P-values were determined using Student’s t-test and multiple linear regression (MLR) models which were adjusted for BMI, age, dietary LA, ALA, EPA and DHA, % total energy from dietary fat and physical activity. Caucasian males: n = 113; Caucasian females: n = 298; East Asian Males: n = 98; East Asian Females: n = 277. Abbreviation: SD standard deviation.