Table 1.
The median (25 and 75 percentile) of each omega-3 fatty acid in different subgroups.
| Eicosapentaenoic acid (μmol/L) | Docosahexaenoic acid (μmol/L) | Alpha-linolenic acid (μmol/L) | Stearidonic acid (μmol/L) | Docosapentaenoic acid (μmol/L) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No | median (25 and 75 percentile) | p | No | median (25 and 75 percentile) | P | No | median (25 and 75 percentile) | P | No | median (25 and 75 percentile) | P | No | median (25 and 75 percentile) | P | |
| Overall | 1,350 | 50.2 (33.4, 78.1) | 1,346 | 142.0 (109.0, 196.0) | 1,349 | 77.3 (56.5, 107.0) | 1,224 | 3.0 (1.8, 4.9) | 1,318 | 47.9 (38.2, 61.2) | |||||
| Sex | 0.006 | <0.001 | 0.386 | 0.799 | 0.15 | ||||||||||
| male | 641 | 47.3 (32.8, 74.5) | 637 | 133.0 (102.0, 178.0) | 641 | 76.7 (55.7, 106.5) | 582 | 3.0 (1.82, 4.9) | 625 | 48.4 (38.9, 62.1) | |||||
| Female | 709 | 52.6 (35.4, 81.5) | 709 | 153.0 (118.0, 211.0) | 708 | 77.7 (57.2, 107.8) | 642 | 2.9 (1.8, 4.9) | 693 | 47.7 (37.7, 60.6) | |||||
| Age (years) | <0.001 | <0.001 | 0.352 | <0.001 | <0.001 | ||||||||||
| 20–50 | 695 | 44.2 (30.3, 71.1) | 693 | 131.0 (100.0, 178.0) | 694 | 76.1 (56.6, 102.3) | 623 | 2.6 (1.7, 4.5) | 678 | 45.6 (36.7, 5,707) | |||||
| >50 (reference) | 655 | 57.1 (39.0, 87.3) | 653 | 159.0 (120.0, 217.0) | 655 | 79.9 (56.1, 110.0) | 601 | 3.2 (2.1, 5.2) | 640 | 51.7 (41.0, 64.6) | |||||
| Body mass index (kg/m2) | 0.651 | 0.223 | 0.003 | 0.006 | 0.637 | ||||||||||
| <25 | 386 | 51.3 (32.9, 81.8) | 384 | 148.0 (109.3, 214.8) | 386 | 72.7 (54.4, 94.3) | 342 | 2.7 (1.6, 4.3) | 380 | 47.9 (37.7, 61.6) | |||||
| 25–30 | 456 | 51.2 (33.5, 75.8) | 455 | 141.0 (106.0, 193.0) | 455 | 80.0 (57.1, 112.0) | 418 | 3.0 (1.9, 5.2) | 444 | 48.9 (38.5, 62.4) | |||||
| ≧30 | 497 | 49.6 (34.5, 78.5) | 496 | 140.5 (111.3, 186.0) | 497 | 80.1 (57.8, 111.0) | 454 | 3.2 (2.0, 5.0) | 484 | 47.7 (38.6, 60.3) | |||||
| Alcohol consumption (drink/year) | 0.134 | 0.002 | 0.674 | 0.02 | 0.513 | ||||||||||
| 12 | 330 | 47.8 (31.9, 71.9) | 330 | 150.0 (118.0, 209.0) | 330 | 77.9 (57.3, 110.0) | 294 | 2.8 (1.8, 4.1) | 325 | 47.7 (37.2, 61.6) | |||||
| ≧12 | 919 | 50.9 (33.8, 78.8) | 915 | 139.0 (105.0, 190.0) | 918 | 77.2 (56.4, 105.0) | 840 | 3.0 (1.8, 5.2) | 898 | 47.9 (38.5, 60.9) | |||||
| Annual Household income (USD) | <0.001 | <0.001 | 0.198 | 0.867 | 0.73 | ||||||||||
| <45,000 | 645 | 47.2 (32.6, 70.3) | 643 | 132.0 (101.0, 179.0) | 644 | 77.1 (55.5, 104.8) | 574 | 3.0 (1.9, 4.8) | 628 | 47.8 (38.2, 60.1) | |||||
| > = 45,000 | 652 | 55.8 (119.0, 211.0) | 651 | 154.0 (119.0, 211.0) | 652 | 77.6 (57.5, 109.0) | 601 | 2.9 (1.8, 5.0) | 639 | 48.4 (38.3, 61.6) | |||||
| Ethnicity | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | ||||||||||
| Mexican-American | 175 | 37.2 (25.8, 52.6) | 175 | 124.0 (101.0, 159.0) | 174 | 85.5 (67.9, 121.0) | 157 | 2.7 (1.4, 4.5) | 171 | 45.5 (35.4, 57.1) | |||||
| Other Hispanic | 140 | 48.4 (31.3, 66.7) | 140 | 147.5 (117.3, 192.3) | 140 | 81.0 (59.9, 116.8) | 126 | 3.2 (1.8, 4.6) | 137 | 48.1 (38.2, 62.8) | |||||
| Non-Hispanic White | 594 | 54.1 (36.9, 82.2) | 593 | 135.0 (1.1.0, 189.5) | 594 | 78.0 (58.0, 106.3) | 557 | 3.3 (2.1, 5.3) | 577 | 50.6 (40.8, 63.8) | |||||
| Non-Hispanic Black | 247 | 47.5 (32.8, 69.2) | 245 | 148.0 (116.0, 195.5) | 247 | 60.9 (47.6, 83.4) | 224 | 2.5 (1.6, 3.9) | 241 | 44.9 (36.2, 55.2) | |||||
| Other Race - Including Multi-Racial | 194 | 60.5 (37.8, 106.0) | 193 | 185.0 (134.0, 268.0) | 194 | 82.7 (59.7, 122.3) | 160 | 2.6 (1.6, 4.6) | 192 | 47.8 (37.3, 63.7) | |||||
| PUFA intake (gm) | 0.004 | 0.045 | 0.777 | 0.853 | 0.013 | ||||||||||
| ≦0.15 | 755 | 52.3 (34.4, 81.7) | 753 | 144.0 (109.0, 198.0) | 755 | 77.2 (56.8, 105.0) | 691 | 3.0 (1.9, 4.8) | 735 | 49.2 (39.0, 62.5) | |||||
| >0.15 | 503 | 47.2 (32.6, 71.8) | 501 | 137.0 (105.5, 185.5) | 502 | 77.7 (56.2, 109.0) | 451 | 3.0 (1.8, 5.0) | 494 | 46.6 (37.1, 60.4) | |||||