Table 2: Median (25th, 75th quartile) dietary intake of fatty acids (g/day and %) and fatty acid concentrations of plasma phospholipids (PL) (weight%), Nordic Nutrition Recommendations (NRR) and correlation between diet (g/day) and plasma PL in colorectal cancer patients ( )a.

Dietary fat intake NRRPlasma PL (weight %)
g/day %

Total fat90.3 (75.7, 107.5)33.8 (30.4, 36.9)<30  %
Total saturated fatty acids33.7 (28.3, 41.1)12.9 (11.0, 14.0)<10  %40.2 (39.5, 40.9)0.23
16:0 (palmitic acid)16.9 (14.0, 19.4)6.3 (5.4, 6.9)27.5 (26.4, 28.9)0.20
18:0 (stearic acid)7.9 (6.7, 10.1)3.1 (2.7, 3.5)12.5 (11.9, 13.5)−0.05
16:1 -7 (palmitoleic acid)1.6 (1.4, 1.8)0.6 (0.5, 0.7)0.52 (0.46, 0.69)0.31c
18:1 -9 (oleic acid)27.3 (22.0, 32.6)10.1 (8.5, 11.4)8.5 (7.8, 9.4)0.20b
20:1 -9 (eicosenoic acid)0.7 (0.6, 0.9)0.3 (0.2, 0.3)0.14 (0.12, 0.16)0.12
18:2 -6 (linoleic acid) (LA)15.2 (12.1, 19.5)5.7 (4.7, 6.7)20.3 (17.4, 22.0)0.10
18:3 -3 ( -linolenic acid (ALA)2.1 (1.8, 2.8)0.8 (0.7, 0.9)0.25 (0.21, 0.30)0.12
20:4 -6 (arachidonic acid) (AA)0.14 (0.11, 0.18)0.05 (0.04, 0.06)9.2 (7.9, 10.7)0.03
20:5 -3 (eicosapentaenoic acid) (EPA)0.30 (0.21, 0.43)0.1 (0.07, 0.18)1.3 (1.0, 2.2)0.21
22:6 -3 (docosahexaenoic acid) (DHA)0.50 (0.38, 0.64)0.2 (0.13, 0.27)5.6 (4.7, 6.9)0.42d
Sum EPA + DHA0.82 (0.60, 1.04)0.3 (0.2, 0.4)≥0.45 g/day7.2 (5.8, 9.2)0.36c
Ratio AA/EPA0.42 (0.35, 0.67)6.9 (4.8, 9.1)0.14
Sum -3 fatty acids (ALA + EPA + DHA)3.08 (2.55, 3.77)1.1 (1.0, 1.3)>1  %7.35 (6.11, 9.38)0.16
Sum -6 fatty acids (LA + AA)15.37 (12.30, 19.80)5.7 (4.8, 6.8)30.10 (27.55, 31.65)−0.08
Ratio -3/ -6 fatty acids0.19 (0.17, 0.23)0.25 (0.20, 0.33)0.29b
Total polyunsaturated fatty acids18.4 (14.9, 23.4)7.0 (6.0, 8.0)5–10  %37.7 (36.5, 39.2)−0.16

aAbbreviations are as follows: %: percent of energy intake; NRR: Nordic Nutrition Recommendations; PL: phospholipids; : Pearson correlation coefficient.
bSignificant correlation ( ).
cSignificant correlation ( ).
dSignificant correlation ( ).