| ā | Normal mucosa (weight%) | Tumour tissue (weight%) | P value |
| 16:0 (palmitic acid) | 20.0 (18.6, 21.6) | 18.3 (17.9, 19.6) | 0.001 | 18:0 (stearic acid) | 8.1 (5.9, 10.3) | 12.5 (11.0, 13.4) | <0.001 | 16:1-7 (palmitoleic acid) | 3.2 (1.9, 4.6) | 1.8 (1.4, 2.5) | 0.007 | 18:1-9 (oleic acid) | 33.6 (29.2, 39.6) | 23.1 (21.2, 24.8) | <0.001 | 18:2-6 (linoleic acid) (LA) | 13.5 (12.1, 15.5) | 12.2 (10.8, 13.4) | 0.001 | 18:3-3 (-linolenic acid (ALA) | 0.59 (0.43, 0.76) | 0.25 (0.15, 0.29) | <0.001 | 20:4-6 (arachidonic acid) (AA) | 3.5 (1.8, 6.4) | 7.5 (6.1, 8.2) | 0.001 | 20:5-3 (eicosapentaenoic acid) (EPA) | 0.23 (0.17, 0.52) | 0.57 (0.32, 0.85) | 0.001 | 22:6-3 (docosahexaenoic acid) (DHA) | 1.30 (0.93, 1.59) | 2.15 (1.67, 2.64) | <0.001 | Sum EPA + DHA | 1.5 (1.1, 2.1) | 2.7 (2.1, 3.4) | <0.001 | Ratio AA/EPA | 9.7 (7.9, 17.3) | 12.5 (8.5, 20.1) | 0.03 | Sum -3 fatty acids (ALA + EPA + DHA) | 2.2 (1.8, 2.7) | 2.9 (2.3, 3.6) | <0.001 | Sum -6 fatty acids (LA + AA) | 16.7 (15.2, 21.1) | 19.8 (17.2, 20.5) | 0.11 | Ratio -3/-6 fatty acids | 0.13 (0.11, 0.15) | 0.15 (0.12, 0.18) | <0.001 | Sum polyunsaturated fatty acids | 18.5 (17.2, 23.6) | 23.0 (19.3, 24.4) | 0.05 |
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